+publisher:"University of Saskatchewan" +contributor:("Penner, Greg")

University of Saskatchewan

1. Claassen, Rachel. The effects of extruding wheat dried distillers grains with solubles with peas or canola meal on ruminal fermentation, microbial protein synthesis, nutrient digestion and milk production in Holstein dairy cows.

Degree: 2015, University of Saskatchewan

URL: http://hdl.handle.net/10388/ETD-2015-12-2387

► The objective of this study was to examine the effects of feeding extruded and non-extruded mixtures of wheat dried distillers grains with solubles with peas… (more)

▼ The objective of this study was to examine the effects of feeding extruded and non-extruded mixtures of wheat dried distillers grains with solubles with peas (WP) or canola meal (WC) on ruminal fermentation, total tract nutrient digestion and milk production in dairy cows. Eight dairy cows (712 ± 54 kg body weight; 90 ± 31 days-in-milk at the beginning of the experiment) were used in a replicated 4 × 4 Latin square design (28-d periods) with a 2 × 2 factorial arrangement of dietary treatments. Four cows in one Latin square were fitted with rumen cannulas for the measurement of ruminal fermentation characteristics. Treatment diets contained either WP or WC combinations fed in an extruded or non-extruded form (16% of DMI). Diets were isonitrogenous (17.1% crude protein; CP) and contained approximately 53% concentrate and 47% forage (DM basis). Dietary treatment had no significant effect on DMI (P > 0.10). Starch intake was higher for cows fed extruded diets compared to those fed non-extruded diets (P = 0.028) and was also higher for cows fed WP compared to those fed WC (P = 0.042). Cows fed extruded diets had higher apparent ruminal digestion of DM (P = 0.02) and a tendency (P = 0.05) for a higher OM apparently digested in the rumen compared to those fed non-extruded diets. Total tract digestibilities of organic matter (P < 0.01), CP (P < 0.01), ether extract (P < 0.01) and starch (P = 0.047) were higher for cows fed extruded diets compared to those fed non-extruded diets. Total tract digestibility of ether extract was lower (P = 0.011) but digestibility of starch was higher (P < 0.01) and CP digestibility tended to be higher (P = 0.08) for cows fed WP compared to those fed WC. Fecal N excretion was lower in cows fed extruded diets compared to those fed non-extruded diets (P < 0.01), but there was no difference in N retention, productive N, RDP or RUP between diets (P > 0.10). Ruminal pH was higher for cows fed non-extruded WC compared to those fed extruded WC, but there was no difference between WP diets (interaction; P = 0.047). Ruminal acetate displayed the opposite interaction where concentration was highest for cows fed extruded WC and lowest for those fed non-extruded WC but there was no difference between WP diets (interaction; P = 0.019). Ruminal ammonia-N concentration tended to be higher for cows fed WC compared to those fed WP (P = 0.06). Ruminal propionate concentration was higher for cows fed extruded diets compare to those fed non-extruded diets (P = 0.026). Ruminal isobutyrate concentration was higher for cows fed WC compared to those fed WP (P < 0.01). Ruminal butyrate (P < 0.01) and isovalerate (P < 0.01) concentrations were higher for cows fed extruded WC compared to those fed non-extruded WC, but concentrations decreased for cows fed extruded WP compared to those fed non-extruded WP. Plasma glucose concentration was higher for cows fed WC compared to those fed WP but concentration was highest for cows fed extruded WC but lowest for cows fed extruded WP (interaction; P < 0.01). Milk… Advisors/Committee Members: Mutsvangwa, Timothy, Christensen, David, Penner, Greg, Buchanan, Fiona.

Subjects/Keywords: dairy cow; extrusion; wheat dried distillers grains with solubles; peas; canola meal

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Claassen, R. (2015). The effects of extruding wheat dried distillers grains with solubles with peas or canola meal on ruminal fermentation, microbial protein synthesis, nutrient digestion and milk production in Holstein dairy cows. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/ETD-2015-12-2387

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Claassen, Rachel. “The effects of extruding wheat dried distillers grains with solubles with peas or canola meal on ruminal fermentation, microbial protein synthesis, nutrient digestion and milk production in Holstein dairy cows.” 2015. Thesis, University of Saskatchewan. Accessed January 21, 2021. http://hdl.handle.net/10388/ETD-2015-12-2387.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Claassen, Rachel. “The effects of extruding wheat dried distillers grains with solubles with peas or canola meal on ruminal fermentation, microbial protein synthesis, nutrient digestion and milk production in Holstein dairy cows.” 2015. Web. 21 Jan 2021.

Vancouver:

Claassen R. The effects of extruding wheat dried distillers grains with solubles with peas or canola meal on ruminal fermentation, microbial protein synthesis, nutrient digestion and milk production in Holstein dairy cows. [Internet] [Thesis]. University of Saskatchewan; 2015. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/10388/ETD-2015-12-2387.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Claassen R. The effects of extruding wheat dried distillers grains with solubles with peas or canola meal on ruminal fermentation, microbial protein synthesis, nutrient digestion and milk production in Holstein dairy cows. [Thesis]. University of Saskatchewan; 2015. Available from: http://hdl.handle.net/10388/ETD-2015-12-2387

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Saskatchewan

2. Anderson, Breanna. Refining Recommendations for Grazing Whole Plant Corn.

Degree: 2020, University of Saskatchewan

URL: http://hdl.handle.net/10388/12806

► Study objectives were to assess the impacts of grazing allocation and fiber supplementation on animal performance, grazing preference and behavior, ruminal fermentation and whole-system economic… (more)

▼ Study objectives were to assess the impacts of grazing allocation and fiber supplementation on animal performance, grazing preference and behavior, ruminal fermentation and whole-system economic costs. Field studies were carried out during the winters of 2015-16 (yr 1) and 2016-17 (yr 2) evaluating replicated (n = 2) whole-plant corn grazing systems: (i) 3d allocation with supplemental fiber (3DF); (ii) 3d allocation without supplemental fiber (3DNF); (iii) 9d allocation with supplemental fiber (9DF); and (iv) 9d allocation without supplemental fiber (9DNF). Ninety-six cows (yr 1 BW = 674 kg ± 53.1, yr 2 BW= 638 kg ± 49.9), including 16 ruminally cannulated cows, were allocated to 1 of 4 replicated systems for 84 and 88 d in yr 1 and 2, respectively. The same 2100 CHU hybrid (P7332R) was seeded in yr 1 and 2 (yr 1, CP =8.6 %, TDN = 69.5%; yr 2, CP = 8.3%, TDN = 70.72%) and a supplemental fiber source was offered each year, at 15% of total DMI in 3DF and 9DF treatment which was an alfalfa-grass mix hay (yr 1 CP = 12.9%, TDN = 60.2%; yr 2, CP =15.5%, TDN = 58.42%). Cow BW, rib fat, BCS, and ADG were not affected by treatment (P = 0.85). Total DMI was greater (P = 0.01) in 9D forage allocation compared to 3D allocation (12.8 kg hd-1 d-1, respectively). The proportion of cob was greatest (34.2%; P = 0.01) before a grazing allocation and decreased (1.1%) at the end of allocation, whereas the stem proportion was lowest (48.6%; P = 0.01) before and greatest at the end (87.4%) of allocation. When supplemental fiber was offered cattle spent less (48.6 vs. 63.5%, respectively; P = 0.03) time grazing corn compared to cows not provided supplemental fiber. Grazing selection results suggest that cobs were heavily selected for at the start of a grazing allocation, which would provide a highly fermentable starch source at the start of the grazing period. Rumen pH parameters were not affected by fiber supplementation or allocation duration (P > 0.05). The duration that ruminal pH < 5.8 was greatest (143.18 min; P = 0.01) at the start of the grazing allocation compared to middle and end (26.32 and 0.0 min, respectively) of allocation. Total SCFA concentration was greatest (102.12, 99.13 and 86.77 mM, respectively; P = 0.01) at the start and middle of allocation, compared to the end of allocation. The molar proportions of propionate (P = 0.03) and isovalerate (P = 0.01) were lower when fiber was supplemented to cows. Fecal starch was greatest (P = 0.01) at the start of 9D and middle of 3D grazing allocations but was not affected (P = 0.58) by fiber supplementation. Grazing systems costs were not affected (P = 0.73) by grazing treatment. Results from the current study suggest that trt had no impact on rumen fermentation however grazing selection as timing within a forage allocation impacts diet fluctuation in all trt. Offering fiber supplementation did not reduce selection of cob or improve forage utilization. Maintaining the current recommendation of 3 d allocation lengths will reduce the diet fluctuation by the animal… Advisors/Committee Members: Lardner, Bart, Penner, Greg, McKinnon, John, Brook, Ryan.

Subjects/Keywords: beef cow; extensive grazing; corn grazing; forage; allocation

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Anderson, B. (2020). Refining Recommendations for Grazing Whole Plant Corn. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/12806

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Anderson, Breanna. “Refining Recommendations for Grazing Whole Plant Corn.” 2020. Thesis, University of Saskatchewan. Accessed January 21, 2021. http://hdl.handle.net/10388/12806.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Anderson, Breanna. “Refining Recommendations for Grazing Whole Plant Corn.” 2020. Web. 21 Jan 2021.

Vancouver:

Anderson B. Refining Recommendations for Grazing Whole Plant Corn. [Internet] [Thesis]. University of Saskatchewan; 2020. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/10388/12806.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Anderson B. Refining Recommendations for Grazing Whole Plant Corn. [Thesis]. University of Saskatchewan; 2020. Available from: http://hdl.handle.net/10388/12806

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Saskatchewan

3. Menajovsky, Silvia Beatriz 1988-. EFFECT OF THE FORAGE-TO-CONCENTRATE RATIO OF THE PARTIAL MIXED RATION AND THE QUANTITY OF CONCENTRATE ALLOCATED IN AN AUTOMATIC MILKING SYSTEM ON PERFORMANCE AND ACTIVITY OF MULTIPAROUS HOLSTEIN COWS.

Degree: 2018, University of Saskatchewan

URL: http://hdl.handle.net/10388/9653

► This study was conducted to evaluate the effects of the forage-to-concentrate ratio of the partial mixed ration (PMR) and the quantity of concentrate offered in… (more)

▼ This study was conducted to evaluate the effects of the forage-to-concentrate ratio of the partial mixed ration (PMR) and the quantity of concentrate offered in an automated milking system (AMS), in a feed-first guided-flow barn, on the behavior and performance of dairy cows. Eight ruminally-cannulated multiparous Holstein cows were used in a replicated 4×4 Latin square balanced for carry-over effects. Treatments were arranged in a 2×2 consisting of a PMR that contained (DM basis) either a low (54:46; L-FOR) or a high (64:36; H-FOR) forage-to-concentrate ratio and AMS concentrate provision to achieve low (2 kg/d; L-AMS) or high (6 kg/d; H-AMS) intake. Each period consisted of 28 d with 6 d for dietary transition, 13 d for adaptation, and 9 d of collection. The first 4 d of data and sample collection were used to evaluate behavioral data (milking frequency, feeding behavior, and standing and lying behavior) and ruminal pH. Subsequently, a sampling device removal day was provided, and the last 4 d were used to evaluate ruminal fermentation and apparent total tract digestibility. All 9-d were used for milk yield measurement, while the 8-d were used for DMI measurement. Cows fed the H-AMS consumed 3.5 kg/d less PMR while consuming 4.2 kg/d more AMS concentrate, but total DMI (PMR+AMS) was not affected by treatments averaging 27.3 kg/d. Although cows fed H-AMS had greater concentrate intake, they also had greater variability for AMS concentrate intake among days (0.85 vs. 0.25 kg/d, respectively). The number of PMR meals and PMR eating behavior were not affected by the PMR or AMS treatments. Feeding H-AMS did not affect milking frequency averaging 3.63 milkings/d, but tended to increase milk yield by 1.25 kg/d relative to L-AMS. Likewise, cows fed the L-FOR tended to have greater milk yield relative to H-FOR (39.3 vs 37.9 kg/d, respectively), but had greater holding area time. Minimum ruminal pH tended to be lower for cows fed L-FOR compared to cows fed H-FOR but was not affected by the AMS concentrate treatment. When fed the L-FOR, feeding the H-AMS increased total short-chain fatty acid concentration in the rumen relative to cows fed L-AMS, while the response for H-FOR was not affected by the AMS concentrate. These data suggest that feeding H-AMS may improve milk yield, but also increases the day-to-day variability in AMS concentrate consumption. Feeding a L-FOR PMR may increase milk yield without affecting variability in AMS concentrate consumption; however, it may reduce ruminal pH and increase the time spent in the holding area compared to cows fed a H-FOR PMR. Advisors/Committee Members: Penner, Greg, Mutsvangwa, Tim, Schwartzkopf-Genswein, Karen, Buchanan, Fiona, Salfer, James.

Subjects/Keywords: automatic milking system; concentrate; partial mixed ration; ruminal fermentation

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Menajovsky, S. B. 1. (2018). EFFECT OF THE FORAGE-TO-CONCENTRATE RATIO OF THE PARTIAL MIXED RATION AND THE QUANTITY OF CONCENTRATE ALLOCATED IN AN AUTOMATIC MILKING SYSTEM ON PERFORMANCE AND ACTIVITY OF MULTIPAROUS HOLSTEIN COWS. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/9653

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Menajovsky, Silvia Beatriz 1988-. “EFFECT OF THE FORAGE-TO-CONCENTRATE RATIO OF THE PARTIAL MIXED RATION AND THE QUANTITY OF CONCENTRATE ALLOCATED IN AN AUTOMATIC MILKING SYSTEM ON PERFORMANCE AND ACTIVITY OF MULTIPAROUS HOLSTEIN COWS.” 2018. Thesis, University of Saskatchewan. Accessed January 21, 2021. http://hdl.handle.net/10388/9653.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Menajovsky, Silvia Beatriz 1988-. “EFFECT OF THE FORAGE-TO-CONCENTRATE RATIO OF THE PARTIAL MIXED RATION AND THE QUANTITY OF CONCENTRATE ALLOCATED IN AN AUTOMATIC MILKING SYSTEM ON PERFORMANCE AND ACTIVITY OF MULTIPAROUS HOLSTEIN COWS.” 2018. Web. 21 Jan 2021.

Vancouver:

Menajovsky SB1. EFFECT OF THE FORAGE-TO-CONCENTRATE RATIO OF THE PARTIAL MIXED RATION AND THE QUANTITY OF CONCENTRATE ALLOCATED IN AN AUTOMATIC MILKING SYSTEM ON PERFORMANCE AND ACTIVITY OF MULTIPAROUS HOLSTEIN COWS. [Internet] [Thesis]. University of Saskatchewan; 2018. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/10388/9653.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Menajovsky SB1. EFFECT OF THE FORAGE-TO-CONCENTRATE RATIO OF THE PARTIAL MIXED RATION AND THE QUANTITY OF CONCENTRATE ALLOCATED IN AN AUTOMATIC MILKING SYSTEM ON PERFORMANCE AND ACTIVITY OF MULTIPAROUS HOLSTEIN COWS. [Thesis]. University of Saskatchewan; 2018. Available from: http://hdl.handle.net/10388/9653

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Saskatchewan

4. Joy, Faustin 1980-. Effect of energy source, timing of provision, and days on feed on feed efficiency of finishing beef cattle.

Degree: 2019, University of Saskatchewan

URL: http://hdl.handle.net/10388/12514

► The objective of this research was to evaluate if the decline in gain-to-feed ratio (G:F) during finishing in beef cattle could be due to a… (more)

▼ The objective of this research was to evaluate if the decline in gain-to-feed ratio (G:F) during finishing in beef cattle could be due to a reduction in nutrient digestion, short chain fatty acid absorption, or post-absorptive nutrient utilization, and those responses were influenced by the dietary energy source or timing of provision. A high-lipid byproduct pellet (HLP) was used as a partial replacement for barley grain in a high concentrate finishing diet to partially replace starch with lipid as the energy source. Yearling steers were used for performance evaluations and ruminally cannulated Hereford crossbred heifers were used for nutrient metabolism studies. The dry matter (DM), organic matter (OM), crude protein (CP) and neutral detergent fibre (NDF) digestibility of HLP diets were lower than the barley-based control diet (CON). Utilizing a phase-feeding strategy and partially replacing barley grain and canola meal with a high-fibre high-lipid byproduct pellet in the latter part of the finishing period may improve carcass yield grade without affecting average daily gain and G:F. With advancing days on feed, diet DM digestibility (P = 0.02) and insulin resistance (P = 0.04) increase without changes in ruminal pH and plasma metabolite clearance rates. A marginal increase in forage inclusion with the HLP diet increased ADG (P = 0.04). Increasing dietary lipid supply up to 6% of DM using HLP did not affect the digesta flow and rumen fermentation parameters, therefore, increased lipid content is not associated with reduced feed efficiency of the HLP diet. In conclusion, decreasing feed efficiency in the later stages of finishing in beef cattle is most likely due to changes in the post absorptive nutrient metabolism, and these changes are not influenced by the dietary energy source. The small particle size of feed ingredients within the byproduct pellet may be the factor associated with decreased feed efficiency of HLP pellet rather than lipid content. Advisors/Committee Members: Penner, Greg, Buchanan, Fiona, McKinnon, John, Hendrick, Steve, Burciaga-Robles, Luis.

Subjects/Keywords: Feed efficiency; Beef cattle

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Joy, F. 1. (2019). Effect of energy source, timing of provision, and days on feed on feed efficiency of finishing beef cattle. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/12514

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Joy, Faustin 1980-. “Effect of energy source, timing of provision, and days on feed on feed efficiency of finishing beef cattle.” 2019. Thesis, University of Saskatchewan. Accessed January 21, 2021. http://hdl.handle.net/10388/12514.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Joy, Faustin 1980-. “Effect of energy source, timing of provision, and days on feed on feed efficiency of finishing beef cattle.” 2019. Web. 21 Jan 2021.

Vancouver:

Joy F1. Effect of energy source, timing of provision, and days on feed on feed efficiency of finishing beef cattle. [Internet] [Thesis]. University of Saskatchewan; 2019. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/10388/12514.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Joy F1. Effect of energy source, timing of provision, and days on feed on feed efficiency of finishing beef cattle. [Thesis]. University of Saskatchewan; 2019. Available from: http://hdl.handle.net/10388/12514

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Saskatchewan

5. Amat, Samat. Evaluation of sulfur and thiamine metabolism, short chain fatty acid absorption, and mineral status in beef cattle fed high dietary sulfur.

Degree: 2012, University of Saskatchewan

URL: http://hdl.handle.net/10388/ETD-2012-12-838

► A small pen study, a metabolic trial and a field observation study were conducted to evaluate sulfur (S) and thiamine metabolism, short chain fatty acid… (more)

▼ A small pen study, a metabolic trial and a field observation study were conducted to evaluate sulfur (S) and thiamine metabolism, short chain fatty acid (SCFA) absorption, and mineral status in beef cattle fed high dietary S. In the small pen study, the effect of feeding corn (CDDGS), wheat (WDDGS) or a 50:50 corn:wheat blend (BDDGS) dried distillers grains with solubles (DDGS) on serum sulfate level of feedlot steers was evaluated using 288 crossbred steers (273.9 ± 18.5kg) in a completely randomized design. The steers were backgrounded and finished. The control backgrounding diet consisted of 34.3% barley grain, 26.0% brome grass hay, 10.3% barley straw, 22.8% barley silage, and 6.7% supplement (DM). For the three treatment diets, 17% of the barley grain was replaced with DDGS. Sulfur concentrations of control, BDDGS, CDDGS and WDDGS diets in the backgrounding phase were 0.2, 0.23, 0.31 and 0.33% (DM), respectively. The control finishing diet was 86.8% barley grain, 5.8% supplement and 7.4% barley silage (DM), and the three DDGS treatments included replacement of 40% of barley grain with an equal amount of DDGS. The corresponding sulfur concentrations for control, BDDGS, CDDGS and WDDGS diets in were 0.2, 0.33, 0.51 and 0.65% (DM), respectively. Corn DDGS or WDDGS cattle exhibited higher (P < 0.01) serum sulfate levels than BDDGS or control cattle in both backgrounding and finishing phases. Mean serum sulfate concentrations in cattle fed WDDGS and CDDGS were lower (P < 0.01) in finishing phase relative to backgrounding phase despite the higher S intake (P < 0.01). In the metabolic study, effects of dietary S concentration and forage-to-concentrate ratio (F:C) on S and thiamine metabolism, SCFA absorption, and mineral status were evaluated using 16 ruminally cannulated heifers (initial BW 628 ± 48 kg) in a randomized complete block design with a 2 × 2 factorial treatment arrangement with main effects of dietary S (LS = 0.3% vs. HS = 0.67%, DM) and F:C (Low F:C = 4% vs. High F:C = 51% barley silage, DM). There was no interaction between S concentration and the F:C. The HS cattle had reduced DMI (P < 0.001) and SCFA (acetate, propionate and butyrate) absorption (P < 0.05) but greater concentrations of ruminal hydrogen sulfide (H2S) (P < 0.01), serum sulfate (P < 0.01) and urinary sulfate (P < 0.01), as well as greater urinary sulfate excretion (P < 0.01) than LS cattle. Free thiamine, thiamine monophosphate (TMP) and thiamine pyrophosphate (TPP) concentrations in blood and rumen fluid did not vary (P > 0.05) among HS and LS cattle. Concentration of TPP was increased by 9.2% (P = 0.10) but with a concomitant numerical decrease in free thiamine in HS brains than LS brains. The HS brains had greater TMP (P = 0.01) and total thiamine (free thiamine + TMP + TPP) (P < 0.01) than LS brains. The HS cattle had reduced (P < 0.05) ruminal cobalt (Co), iron (Fe) and manganese (Mn) but similar (P > 0.05) copper (Cu), magnesium (Mg), molybdenum (Mo), selenium (Se) and zinc (Zn) relative to LS cattle. There were reduced… Advisors/Committee Members: Hendrick, Steve, McKinnon, John J., Penner, Greg B., Stookey, Joe M..

Subjects/Keywords: Dietary sulfur; beef cattle; thiamine and its phosphate esters; forage-to-concentrate ratio; short chain fatty acid absorption; mineral status

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Amat, S. (2012). Evaluation of sulfur and thiamine metabolism, short chain fatty acid absorption, and mineral status in beef cattle fed high dietary sulfur. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/ETD-2012-12-838

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Amat, Samat. “Evaluation of sulfur and thiamine metabolism, short chain fatty acid absorption, and mineral status in beef cattle fed high dietary sulfur.” 2012. Thesis, University of Saskatchewan. Accessed January 21, 2021. http://hdl.handle.net/10388/ETD-2012-12-838.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Amat, Samat. “Evaluation of sulfur and thiamine metabolism, short chain fatty acid absorption, and mineral status in beef cattle fed high dietary sulfur.” 2012. Web. 21 Jan 2021.

Vancouver:

Amat S. Evaluation of sulfur and thiamine metabolism, short chain fatty acid absorption, and mineral status in beef cattle fed high dietary sulfur. [Internet] [Thesis]. University of Saskatchewan; 2012. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/10388/ETD-2012-12-838.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Amat S. Evaluation of sulfur and thiamine metabolism, short chain fatty acid absorption, and mineral status in beef cattle fed high dietary sulfur. [Thesis]. University of Saskatchewan; 2012. Available from: http://hdl.handle.net/10388/ETD-2012-12-838

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Saskatchewan

6. Pederzolli, Rae-Leigh Amanda 1989-. Barrier Function of the Gastrointestinal Tract of Holstein Steers When Exposed to Ruminal Acidosis and Low Feed Intake.

Degree: 2016, University of Saskatchewan

URL: http://hdl.handle.net/10388/7441

► Ruminal acidosis and low feed intake are two nutritional challenges present on beef and dairy operations that result in reduced health and performance. The objective… (more)

▼ Ruminal acidosis and low feed intake are two nutritional challenges present on beef and dairy operations that result in reduced health and performance. The objective of this study was to determine the regional susceptibility of the gastrointestinal tract (GIT) to ruminal acidosis (RA) or low feed intake (LFI). Twenty-one Holstein steers, aged 6 to 8 mo, were blocked by body weight (BW) and within block randomly assigned to 1 of 3 treatments: 1) control (CON), 2) RA, and 3) LFI. All steers were fed a diet containing a 50:50 forage to concentrate ratio (F:C) and were exposed to a 5-d measurement period. The CON steers were provided the basal diet for ad libitum intake, the LFI steers were fed at 25% of ad libitum intake for 5 d before humane killing while the RA steers were restricted to 25% intake for 1 d and then were fed 30% of dry matter intake (DMI) in pelleted barley followed by their regular total mixed ration (TMR) allocation. The RA steers were killed 1 d after the RA challenge. After killing, tissues from the rumen, omasum, duodenum, jejunum, ileum, cecum, proximal, and distal colon were collected. Digesta from those regions were assessed and tissues were mounted in Ussing chambers in order to assess permeability using the mucosal-to-serosal flux of inulin (JMS-inulin) and mannitol (JMS-mannitol) and tissue conductance (Gt). Digesta pH were less for RA than CON in the rumen, cecum, and proximal colon while LFI had greater pH in the rumen and proximal colon compared to CON. Ruminal short-chain fatty acid (SCFA) concentrations in the rumen were less for the LFI (P = 0.010) and RA (P = 0.007) compared to CON steers. In the proximal colon, there was a greater proportion of butyrate (P = 0.025 and P = 0.022) and isobutyrate (P = 0.019 and P = 0.019), and a lower proportion of acetate (P = 0.028 and P = 0.028) for LFI and RA, respectively, when compared to CON steers. The JMS-mannitol differed between the CON and LFI steers in the proximal colon (P = 0.041) and in the distal colon (P = 0.015) with the LFI steers having a lower flux rate in both regions. Increases in gene expression for genes related to barrier function (in the rumen, jejunum, and distal colon), mucosal immunology (rumen and jejunum), and adaptive immunity (jejunum) were observed indicating compensatory mechanisms may have been stimulated. It was concluded from this study that an acute RA challenge had no effect on tissue permeability throughout the GIT within 1 d of the challenge, while steers that were on LFI for 5 d had reduced tissue permeability in the proximal and distal colon while other regions of the GIT were unaffected. Further research is needed to analyze different management strategies proposed to mitigate the negative impact of LFI shown in production animal agriculture. Advisors/Committee Members: Penner, Greg, Van Kessel, Andrew, McKinnon, John, Alcorn, Jane, Mutsvangwa, Tim.

Subjects/Keywords: Barrier function; ruminal acidosis; low feed intake; cattle; tissue permeability

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APA (6^th Edition):

Pederzolli, R. A. 1. (2016). Barrier Function of the Gastrointestinal Tract of Holstein Steers When Exposed to Ruminal Acidosis and Low Feed Intake. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/7441

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Pederzolli, Rae-Leigh Amanda 1989-. “Barrier Function of the Gastrointestinal Tract of Holstein Steers When Exposed to Ruminal Acidosis and Low Feed Intake.” 2016. Thesis, University of Saskatchewan. Accessed January 21, 2021. http://hdl.handle.net/10388/7441.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Pederzolli, Rae-Leigh Amanda 1989-. “Barrier Function of the Gastrointestinal Tract of Holstein Steers When Exposed to Ruminal Acidosis and Low Feed Intake.” 2016. Web. 21 Jan 2021.

Vancouver:

Pederzolli RA1. Barrier Function of the Gastrointestinal Tract of Holstein Steers When Exposed to Ruminal Acidosis and Low Feed Intake. [Internet] [Thesis]. University of Saskatchewan; 2016. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/10388/7441.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Pederzolli RA1. Barrier Function of the Gastrointestinal Tract of Holstein Steers When Exposed to Ruminal Acidosis and Low Feed Intake. [Thesis]. University of Saskatchewan; 2016. Available from: http://hdl.handle.net/10388/7441

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Saskatchewan

7. Scott, Karen Ann 1991-. INFLUENCE OF FORAGE LEVEL AND CORN GRAIN PROCESSING ON WHOLE-BODY UREA KINETICS, AND SEROSAL-TO-MUCOSAL UREA FLUX AND EXPRESSION OF UREA TRANSPORTERS AND AQUAPORINS IN THE OVINE RUMEN, DUODENUM, AND CECUM.

Degree: 2018, University of Saskatchewan

URL: http://hdl.handle.net/10388/8602

► The process of urea recycling to the gastro-intestinal tract (GIT) is an evolutionary adaptation that allows ruminants to maintain a positive nitrogen (N) balance, particularly… (more)

▼ The process of urea recycling to the gastro-intestinal tract (GIT) is an evolutionary adaptation that allows ruminants to maintain a positive nitrogen (N) balance, particularly when faced with a dietary protein deficit. Recycled urea-N can enter all GIT compartments; however, the rumen is where most of the anabolic usage occurs as it provides a N source for microbial protein synthesis, thus providing amino acids to the host animal when microbial protein is digested at the small intestine. The objective of this thesis research was to determine the effects of forage level and corn grain processing on N utilization, primarily focusing on dietary effects on whole-body urea kinetics and apparent N balance, and ex vivo serosal-to-mucosal urea flux (Jsm-urea) across ruminal, duodenal, and cecal epithelia. Additionally, to better understand the mechanisms associated with whole-body N utilization across the aforementioned GIT regions, dietary effects on regional fermentation characteristics and messenger ribonucleic acid (mRNA) expression of urea transporters (UT) and aquaporins (AQP) were also assessed. Sheep were used as an experimental model for ruminants. Thirty-two wether lambs (37.2 ± 1.7 kg initial body weight [BW]) were blocked by BW into groups of 4 and assigned to 1 of 4 diets (n = 8) in a 2 x 2 factorial design. Dietary factors were forage level (30% [LF] vs. 70% [HF]; DM basis) and corn grain processing (whole-shelled [WS] vs. steam-flaked [SF]). Provision of WS or SF corn was expected to alter the location of starch digestion in the ruminant GIT, with SF corn expected to shift starch digestion to the rumen, and WS corn expected to shift starch digestion to the intestine and hindgut. Four blocks of lambs (n = 4) were used for the in vivo metabolism trial to determine N balance and whole-body urea kinetics. Whole-body urea kinetics were determined using 4-d double-labelled urea ([15N15N]-urea) isotopic infusions, with concurrent total collections of urine and feces to determine isotopic enrichments and N balance. After 23 d of dietary adaptation, all lambs were killed (one per day for logistical reasons) on the morning of d 24 and ruminal, duodenal, and cecal epithelia were collected to determine Jsm-urea (using the Ussing chamber model) and mRNA expression for UT and AQP. Lambs fed LF had greater DM (1.20 vs. 0.86 kg/d; P < 0.01) and N (20.1 vs 15.0 g/d; P < 0.01) intakes than those fed HF. Lambs fed SF corn had greater DM (1.20 vs. 0.86 kg/d; P < 0.01) and N (20.6 vs. 14.5 g/d; P < 0.01) intakes than those fed WS. When expressed as a percent of N intake, total N excretion was greater in lambs fed HF diets compared to those fed LF diets (103 vs. 63.0%; P < 0.01). Also, total N excretion (as a percent of N intake) was greater in lambs fed WS corn compared to those fed SF corn (93.6 vs. 72.1%; P = 0.02). Apparent N balance, expressed as a percent of N intake, was greater in lambs fed LF diets compared to those fed HF diets (37.0 vs. -2.55%; P < 0.01). Similarly, lambs fed SF corn also exhibited a greater apparent N… Advisors/Committee Members: Mutsvangwa, Timothy, Penner, Greg, McKinnon, John, Buchanan, Fiona, Korber, Darren.

Subjects/Keywords: Ruminants; Urea recycling; Urea flux; Nitrogen metabolism; Forage level; Corn grain processing; Ussing chamber; Gastrointestinal tract; Urea transporters; Aquaporins; Whole-body urea kinetics

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Scott, K. A. 1. (2018). INFLUENCE OF FORAGE LEVEL AND CORN GRAIN PROCESSING ON WHOLE-BODY UREA KINETICS, AND SEROSAL-TO-MUCOSAL UREA FLUX AND EXPRESSION OF UREA TRANSPORTERS AND AQUAPORINS IN THE OVINE RUMEN, DUODENUM, AND CECUM. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/8602

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Scott, Karen Ann 1991-. “INFLUENCE OF FORAGE LEVEL AND CORN GRAIN PROCESSING ON WHOLE-BODY UREA KINETICS, AND SEROSAL-TO-MUCOSAL UREA FLUX AND EXPRESSION OF UREA TRANSPORTERS AND AQUAPORINS IN THE OVINE RUMEN, DUODENUM, AND CECUM.” 2018. Thesis, University of Saskatchewan. Accessed January 21, 2021. http://hdl.handle.net/10388/8602.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Scott, Karen Ann 1991-. “INFLUENCE OF FORAGE LEVEL AND CORN GRAIN PROCESSING ON WHOLE-BODY UREA KINETICS, AND SEROSAL-TO-MUCOSAL UREA FLUX AND EXPRESSION OF UREA TRANSPORTERS AND AQUAPORINS IN THE OVINE RUMEN, DUODENUM, AND CECUM.” 2018. Web. 21 Jan 2021.

Vancouver:

Scott KA1. INFLUENCE OF FORAGE LEVEL AND CORN GRAIN PROCESSING ON WHOLE-BODY UREA KINETICS, AND SEROSAL-TO-MUCOSAL UREA FLUX AND EXPRESSION OF UREA TRANSPORTERS AND AQUAPORINS IN THE OVINE RUMEN, DUODENUM, AND CECUM. [Internet] [Thesis]. University of Saskatchewan; 2018. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/10388/8602.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Scott KA1. INFLUENCE OF FORAGE LEVEL AND CORN GRAIN PROCESSING ON WHOLE-BODY UREA KINETICS, AND SEROSAL-TO-MUCOSAL UREA FLUX AND EXPRESSION OF UREA TRANSPORTERS AND AQUAPORINS IN THE OVINE RUMEN, DUODENUM, AND CECUM. [Thesis]. University of Saskatchewan; 2018. Available from: http://hdl.handle.net/10388/8602

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Saskatchewan

8. Hare, Koryn 1992-. Does providing metabolizable protein in excess of requirement prior to calving improve nitrogen balance and cow-calf performance?.

Degree: 2018, University of Saskatchewan

URL: http://hdl.handle.net/10388/8438

► The objective of this experiment was to evaluate the effect of over-feeding metabolizable protein (MP) during late gestation on prepartum N balance, and postpartum cow… (more)

▼ The objective of this experiment was to evaluate the effect of over-feeding metabolizable protein (MP) during late gestation on prepartum N balance, and postpartum cow BW and skeletal muscle catabolism, colostrum composition, and milk yield (MY) and composition. Twenty-four (14 cannulated, 10 non-cannulated) crossbred Hereford cows were assigned to a control treatment designed to meet (CON = 100% MP, n =12) or exceed (HMP = 133% MP, n = 12) MP requirements. Cows consumed a common lactation (103% MP) diet postpartum. One HMP and 1 CON cow-calf pair were removed due to dystocia, while 1 CON cow was removed due to aggression at parturition. Heifers were housed and fed individually from d -55 to d 33 relative to parturition and then group-housed until 112 d post-partum. Dry matter intake was measured throughout the study and summarized by week. Cow BW was recorded on d -55 ± 3.7, -41 ± 3.7, -28 ± 3.6, -8 ± 3.9, 7 ± 1.0, 13 ± 2.0, 28 ± 2.9, 57 ± 3.6, 82 ± 5.1, and 112 ± 2.9 relative to parturition. Total fecal and urinary collections were conducted over a period of 6 d starting on d -33 and -15 to measure N balance, and total tract digestibility. Urine samples from the prepartum collections and postpartum spot samples (starting d 7 and 28) were composited and analyzed for 3-methylhistidine (3-MH) and creatinine as indicators of muscle turnover. Digesta samples were collected and ruminal ammonia-N concentration was measured on d -33 ± 5.3, -15 ± 4.4, 7 ± 0.9, and 28 ± 2.9. Blood samples were collected from cows via jugular venipuncture on d -34 ± 5.3, -17 ± 4.4, 7 ± 0.9, 28 ± 2.9, 70 ± 3.2 and 112 ± 2.9 and analyzed for plasma glucose, urea-N, and insulin, and serum NEFA and BHBA. Calf BW and frame measurements were conducted at birth and on d 7 ± 0.9, 28 ± 2.9, 57 ± 3.6, 82 ± 5.1, and 112 ± 2.9. At parturition, colostrum samples were collected and analyzed for nutrient composition and IgG concentration. Milk yield was measured on d 7 ± 0.9, 12 ± 0.9, 28 ± 2.9, 33 ± 2.9, 70 ± 3.2, and 112 ± 2.9 relative to parturition. Milk samples were analyzed for the concentration of fat, crude protein, lactose, urea-N (MUN) and somatic cell count (SCC). Data for the prepartum and postpartum periods were analyzed separately. All data were analyzed as a randomized complete block design using the MIXED procedure of SAS. Fixed effects included treatment, time, and the two-way interaction of treatment and time, while cow nested in block was considered as the random effect. Time (day or week) was analyzed as a repeated measure when appropriate. Prepartum BW did not differ among days for CON. Whereas, HMP cows increased BW as parturition approached (treatment × day, P < 0.01). While not differing by treatment, dry matter intake (% BW) increased (P < 0.01) by 18% on week -2 compared to -8, but then decreased (P <0.01) by 8.0% during week -1. Nitrogen intake, apparent digestion, excretion, and retention (g/d) were all greater (P < 0.01) for HMP heifers than CON. Heifers fed HMP had improved (P < 0.01) DM, OM, and NDF digestibility relative to… Advisors/Committee Members: Penner, Greg, Mutsvangwa, Tim, McKinnon, John, Zello, Gord, Buchanan, Fionna.

Subjects/Keywords: Metabolizable protein; beef cow; transition period; nitrogen balance; ruminal fermentation; milk production

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Hare, K. 1. (2018). Does providing metabolizable protein in excess of requirement prior to calving improve nitrogen balance and cow-calf performance?. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/8438

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Hare, Koryn 1992-. “Does providing metabolizable protein in excess of requirement prior to calving improve nitrogen balance and cow-calf performance?.” 2018. Thesis, University of Saskatchewan. Accessed January 21, 2021. http://hdl.handle.net/10388/8438.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Hare, Koryn 1992-. “Does providing metabolizable protein in excess of requirement prior to calving improve nitrogen balance and cow-calf performance?.” 2018. Web. 21 Jan 2021.

Vancouver:

Hare K1. Does providing metabolizable protein in excess of requirement prior to calving improve nitrogen balance and cow-calf performance?. [Internet] [Thesis]. University of Saskatchewan; 2018. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/10388/8438.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Hare K1. Does providing metabolizable protein in excess of requirement prior to calving improve nitrogen balance and cow-calf performance?. [Thesis]. University of Saskatchewan; 2018. Available from: http://hdl.handle.net/10388/8438

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Saskatchewan

9. Pursley, Alex 1995-. THE EFFECT OF UTILIZING FORAGE PEA FOR HAY ON FEED INTAKE, RUMINAL FERMENTATION, AND DIGESTIBILITY WHEN FED TO BEEF CATTLE.

Degree: 2019, University of Saskatchewan

URL: http://hdl.handle.net/10388/12509

► The purpose of this research was to evaluate field pea (Pisum sativum L.; c.v. CDC Horizon) harvested as hay on feed intake, ruminal fermentation, and… (more)

▼ The purpose of this research was to evaluate field pea (Pisum sativum L.; c.v. CDC Horizon) harvested as hay on feed intake, ruminal fermentation, and total tract digestibility in beef heifers. In the first study, pea hay was mixed with barley (CDC Maverick) or oat (CDC Haymaker) hay at 0, 15, or 30% of the hay dry matter (DM), and offered ad libitum to ruminally-cannulated Hereford crossbred heifers in a 6 × 6 Latin square design. In the second study, field pea hay (CDC Horizon) was harvested at early, mid, or late stages of maturity. Pea hay was included at 40% of the dietary DM, and the diet was offered ad libitum to ruminally-cannulated Speckle Park heifers in a duplicate 3 × 3 Latin square design. In Study 1, dry matter intake increased with pea hay inclusion rate relative to 0% inclusion (P = 0.03). Ruminal fermentation was altered as mean ruminal pH increased with pea inclusion relative to 0% inclusion (P ≤ 0.013). There was no difference in total short-chain fatty acid (SCFA) concentration (P ≥ 0.55) while pea hay inclusion rate linearly increased butyrate and decreased propionate (P ≤ 0.013); furthermore, ruminal ammonia increased quadratically with inclusion rate (P < 0.001). Pea hay inclusion rate did not affect microbial protein synthesis or nitrogen retention (P ≥ 0.77). In Study 2, advancing maturity of pea hay resulted in numerically greater forage DM yield, but did not affect dry matter intake, ruminal SCFA concentration, or total tract digestibility. Advancing maturity decreased rumination (P ≤ 0.016), ruminal pH (P = 0.005), and ruminal passage rate (P = 0.022). The data from these two studies suggest that CDC Horizon field pea is a potential forage source for beef cattle that may increase CP content of the forage and increase dry matter intake without compromising ruminal fermentation. When field pea is grown in combination with cereal forage, the whole-crop pea may be harvested based upon the maturity of the cereal hay without concern of reduced feed intake or digestibility given that pea hay maturity had only minimal effects on cattle responses. Advisors/Committee Members: Penner, Greg, Biligetu, Bill, Warkentin, Tom, Lardner, Bart, Buchanan, Fiona, Weber, Lynn.

Subjects/Keywords: barley hay; oat hay; pea hay; beef cattle

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Pursley, A. 1. (2019). THE EFFECT OF UTILIZING FORAGE PEA FOR HAY ON FEED INTAKE, RUMINAL FERMENTATION, AND DIGESTIBILITY WHEN FED TO BEEF CATTLE. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/12509

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Pursley, Alex 1995-. “THE EFFECT OF UTILIZING FORAGE PEA FOR HAY ON FEED INTAKE, RUMINAL FERMENTATION, AND DIGESTIBILITY WHEN FED TO BEEF CATTLE.” 2019. Thesis, University of Saskatchewan. Accessed January 21, 2021. http://hdl.handle.net/10388/12509.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Pursley, Alex 1995-. “THE EFFECT OF UTILIZING FORAGE PEA FOR HAY ON FEED INTAKE, RUMINAL FERMENTATION, AND DIGESTIBILITY WHEN FED TO BEEF CATTLE.” 2019. Web. 21 Jan 2021.

Vancouver:

Pursley A1. THE EFFECT OF UTILIZING FORAGE PEA FOR HAY ON FEED INTAKE, RUMINAL FERMENTATION, AND DIGESTIBILITY WHEN FED TO BEEF CATTLE. [Internet] [Thesis]. University of Saskatchewan; 2019. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/10388/12509.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Pursley A1. THE EFFECT OF UTILIZING FORAGE PEA FOR HAY ON FEED INTAKE, RUMINAL FERMENTATION, AND DIGESTIBILITY WHEN FED TO BEEF CATTLE. [Thesis]. University of Saskatchewan; 2019. Available from: http://hdl.handle.net/10388/12509

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Saskatchewan

10. Johnson, Jordan A 1995-. Barley Silage or Corn Silage Fed in Combination with Barley Grain, Corn Grain, or a Blend of Corn and Barley Grain for Finishing Beef Cattle.

Degree: 2019, University of Saskatchewan

URL: http://hdl.handle.net/10388/12447

► ABSTRACT The objectives of the current studies were to evaluate the effects of silage (S) and cereal grain (G) source and their interaction (S ×… (more)

▼ ABSTRACT The objectives of the current studies were to evaluate the effects of silage (S) and cereal grain (G) source and their interaction (S × G) on growth performance, digestibility, and carcass characteristics (Study 1) and dry matter intake, ruminal fermentation, total-tract digestibility, and nitrogen balance (Study 2) for finishing beef cattle. For Study 1, 288 steers weighing 465 ± 28 kg were randomly assigned to 1 of 24 pens (12 steers/pen) in an 89-d finishing study. Study 2 used five ruminally cannulated heifers in an incomplete 6 × 6 Latin square design. Periods were 25-d in duration with 5 d of diet transition, 13 d of dietary adaptation, and 7 d of sample collection. Dietary treatments for both studies included corn silage (CS) or barley silage (BS) at 8% of DM. Within each silage source, diets contained dry-rolled barley grain (BG; 86% of DM), dry-rolled corn grain (CG; 85% of DM), or an equal blend of barley and corn grain (BCG; 85% of DM). In Study 1, there were no interactions between silage and cereal grain source (P ≥ 0.10). Feeding CG increased (G, P < 0.01) DMI by 0.8 and 0.6 kg/d relative to BG and BCG, respectively. Gain-to-feed was greater (G, P = 0.04) for BG (0.17 kg/kg) than CG (0.16 kg/kg), but not different from BCG (0.17 kg/kg). Furthermore, average daily gain (2.07 kg/d) and final body weight were not different among treatments (P > 0.05). Hot carcass weight was 6.2 kg greater (372.2 vs. 366.0 kg; S, P < 0.01) and dressing percent was 0.57% greater (59.53 vs. 58.96 %; S, P = 0.04) for steers fed CS than BS, respectively. In Study 2, DM intake and mean pH were not affected by diet. Total SCFA concentrations were greater for BCG than BG or CG (G, P < 0.01) and for CS (S, P < 0.01) relative to BS. Molar proportion of acetate was increased for BS-BG and BS-CG (S × G, P < 0.01), while molar proportion of propionate was greatest for CS-BG (S × G, P < 0.01). Rumen ammonia-nitrogen concentrations were greatest for CG (G, P < 0.001), and higher for CS than BS (S, P = 0.02). Apparent total-tract digestibility of DM, OM, aNDFom, starch and gross energy were greatest for BG (G, P ≤ 0.04). Dietary digestible energy content (Mcal/kg) was greatest for BG treatments (G, P = 0.03). Total nitrogen retention (g/d and % of intake) was greatest for CS-BG (S × G, P ≤ 0.03). The potentially degradable fraction of DM, CP, and starch were greater for CG (P ≤ 0.03) than BG. For silage sources, CS had greater 24, 48 and 72-h starch digestibility (P ≤ 0.03) relative to BS. These results indicate that feeding dry-rolled BG may improve performance and digestibility when compared to CG and BCG and CS may provide benefits over BS. Improvements related to feeding BG and CS may be due to greater propionate production, improved nutrient digestibility, and greater N retention. Advisors/Committee Members: Penner, Greg B, McAllister, Tim A, McKinnon, John J, Van Emon, Megan L, Brook, Ryan K.

Subjects/Keywords: corn; barley; carcass quality; finishing; beef cattle; silage; grain

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Johnson, J. A. 1. (2019). Barley Silage or Corn Silage Fed in Combination with Barley Grain, Corn Grain, or a Blend of Corn and Barley Grain for Finishing Beef Cattle. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/12447

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Johnson, Jordan A 1995-. “Barley Silage or Corn Silage Fed in Combination with Barley Grain, Corn Grain, or a Blend of Corn and Barley Grain for Finishing Beef Cattle.” 2019. Thesis, University of Saskatchewan. Accessed January 21, 2021. http://hdl.handle.net/10388/12447.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Johnson, Jordan A 1995-. “Barley Silage or Corn Silage Fed in Combination with Barley Grain, Corn Grain, or a Blend of Corn and Barley Grain for Finishing Beef Cattle.” 2019. Web. 21 Jan 2021.

Vancouver:

Johnson JA1. Barley Silage or Corn Silage Fed in Combination with Barley Grain, Corn Grain, or a Blend of Corn and Barley Grain for Finishing Beef Cattle. [Internet] [Thesis]. University of Saskatchewan; 2019. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/10388/12447.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Johnson JA1. Barley Silage or Corn Silage Fed in Combination with Barley Grain, Corn Grain, or a Blend of Corn and Barley Grain for Finishing Beef Cattle. [Thesis]. University of Saskatchewan; 2019. Available from: http://hdl.handle.net/10388/12447

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Saskatchewan

11. Zalinko, Grant. Effect of a low lignin hull, high oil groat oat on beef cattle growth, carcass quality and nutrient utilization.

Degree: 2014, University of Saskatchewan

URL: http://hdl.handle.net/10388/ETD-2014-08-1671

► A series of experiments were conducted to investigate the nutritional value of a new oat variety developed by the Crop Development Centre at the University… (more)

▼ A series of experiments were conducted to investigate the nutritional value of a new oat variety developed by the Crop Development Centre at the University of Saskatchewan. Trials 1 and 2 evaluated performance of steers fed a low lignin hull, high oil groat (LLH-HOG) oat as a replacement for barley or corn. In trial 1, 400 steers were fed one of two diets with barley or the LLH-HOG oat at 37.8% of the diet DM. Dry matter intake was lower (P=0.02) and gain to feed improved (P0.01) for steers fed the oat-based diet. In trial 2, 240 steers were finished diets with barley, corn or the LLH-HOG oat at 88.2% of the finishing diet (DM). During finishing, steers on the oat diet had lower (P0.01) ADG, body and carcass (P<0.01) weights than barley or corn-fed cattle reflecting lower (P0.01) DMI. In trial 3, 20 steers were fed one of seven diets consisting of barley silage and 0, 28, 56, or 84% LLH-HOG oat or barley grain (DM basis) to compare nutrient digestibility. Apparent DM, OM, ADF and NDF digestibility coefficients were lower (P<0.05) for LLH-HOG oat-based diets compared to barley-based diets. Apparent CP and EE digestibility coefficients were higher (P<0.05) for the LLH-HOG oat diets. Trial 4 was conducted to assess ruminal fermentation differences between LLH-HOG oat- or barley-based finishing diets using four rumen cannulated steers. No diet effects (P>0.05) were observed for total ruminal VFA concentration or molar proportions of individual VFA however mean ruminal pH was lower (P=0.01) for steers fed the LLH-HOG oat-finishing diet. Further, the extent of pH decline in oat-fed cattle was greater (P<0.01) than for barley-fed cattle. The results indicate that the energy value of the LLH-HOG oat is equivalent or superior to that of barley for growing cattle. However, further research is required to identify factors limiting feed intake of cattle fed this new oat type in finishing diets. Advisors/Committee Members: McKinnon, John J., Christensen, David A., Penner, Greg B., Buchanan, Fiona C..

Subjects/Keywords: low lignin hull, high-oil groat oat; barley; corn; cattle performance; digestibility; carcass traits; fatty acids

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Zalinko, G. (2014). Effect of a low lignin hull, high oil groat oat on beef cattle growth, carcass quality and nutrient utilization. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/ETD-2014-08-1671

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Zalinko, Grant. “Effect of a low lignin hull, high oil groat oat on beef cattle growth, carcass quality and nutrient utilization.” 2014. Thesis, University of Saskatchewan. Accessed January 21, 2021. http://hdl.handle.net/10388/ETD-2014-08-1671.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Zalinko, Grant. “Effect of a low lignin hull, high oil groat oat on beef cattle growth, carcass quality and nutrient utilization.” 2014. Web. 21 Jan 2021.

Vancouver:

Zalinko G. Effect of a low lignin hull, high oil groat oat on beef cattle growth, carcass quality and nutrient utilization. [Internet] [Thesis]. University of Saskatchewan; 2014. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/10388/ETD-2014-08-1671.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Zalinko G. Effect of a low lignin hull, high oil groat oat on beef cattle growth, carcass quality and nutrient utilization. [Thesis]. University of Saskatchewan; 2014. Available from: http://hdl.handle.net/10388/ETD-2014-08-1671

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Saskatchewan

12. Anez, Federico. EFFECT OF ENERGY SUPPLEMENTATION FROM BY-PRODUCT FEED PELLETS ON PRODUCTIVITY AND NUTRIENT UTILIZATION OF CATTLE GRAZING STOCKPILED CRESTED WHEATGRASS (Agropyron cristatum L.).

Degree: 2013, University of Saskatchewan

URL: http://hdl.handle.net/10388/ETD-2013-09-1200

► Three experiments were conducted to determine the effects of source (experiment 1), frequency, and level (experiments 2 and 3) of energy supplementation on performance, forage… (more)

▼ Three experiments were conducted to determine the effects of source (experiment 1), frequency, and level (experiments 2 and 3) of energy supplementation on performance, forage utilization and intake, productivity, rumen fermentation, and nutrient digestibility of growing beef cattle fed stockpiled forage. In experiment 1 (EXP1) and experiment 2 (EXP2), 45 cross bred yearling steers were managed on stockpiled crested wheatgrass pasture over 70 days during summer/fall of 2011 and 2012. Steers were stratified by IBW (EXP1 = 334±1.2 kg; EXP2 = 358±1.8 kg) and allocated randomly to 1 of 9 crested wheatgrass pastures (5 steers/pasture). Each pasture was randomly assigned to 1 of 3 replicated (n = 3) treatments. In EXP1, two isonitrogenous and isocaloric by-product feed pellets that differed in starch and degradable fiber content were used in one of three supplementation strategies: 1) no supplement (CON), or supplemented at 0.6 % of BW with 2) low starch/high fibre (LS/HF) pellet (40.3% starch; 29.5% NDF DM basis) pellet, or 3) high starch/low fibre (HS/LF; 48.6% starch; 22.8% NDF DM basis) pellet. In EXP2 a by-product feed pellet was formulated to provide ruminal and post-ruminal energy (30.3 % NDF; 32.0 % starch; 7.2 % fat) supplementation strategies included: 1) daily (DLY) supplementation at 0.6 % of BW, 2) low-alternate (LA) supplementation at 0.9 % of BW, and 3) high-alternate (HA) supplementation at 1.2 % of BW. There was no effect (P > 0.05) of treatment on forage utilization in either experiment. In EXP 1, final BW and ADG were not different (P > 0.05) between LS/HF (435 kg; 1.4 kg d-1) and HS/LF (439 kg; 1.5 kg d-1). However, supplemented cattle had higher (P < 0.05) final BW and ADG than CON cattle (402 kg; 1.0 kg d-1). Supplementation increased production costs by 450 %. In EXP 2, no difference (P > 0.05) was observed for final BW and ADG among DLY (435 kg; 1.1 kg d-1), LA (424 kg; 0.9 kg d-1), and HA (428 kg; 1.0 kg d-1). Production costs were reduced by 23 % with alternate supplementation and LA had 19 % less production costs than HA. In experiment three (EXP 3), four ruminally cannulated beef heifers were individually fed a stockpiled grass hay and offered the same pelleted supplement as in EXP2. Treatments consisted of 4 supplementation strategies: 1) no supplement (CON), 2) daily (DLY) supplementation at 0.6% BW, 3) low-alternate (LA) supplementation at 0.9 % of BW, and 4) high-alternate (HA) supplementation at 1.2 % of BW. Forage intake, rumen fermentation parameters, and apparent total tract digestibility were measured. Three data sets were analyzed: 1) overall (average of all collection days), 2) day of supplementation (DS) and 3) non-supplementation day (NSD) for alternating treatments. Overall, hay DMI (kg d-1) was lower (P = 0.04) for DLY (7.1) vs. CON (8.1), but no different (P ≥ 0.11) for DLY vs. LA (6.9), or vs. HA (6.4). On DS, hay DMI (kg d-1) of DLY (7.3) differed (P < 0.05) vs. HA (6.0), but was not different (P = 0.16) vs. LA (6.4). On NSD, hay DMI (kg d-1) of DLY (7.0) was not different (P ≥… Advisors/Committee Members: McKinnon, John J., Lardner, Herbert A., Penner, Greg B., Jefferson, Paul G., Buchanan, Fiona C..

Subjects/Keywords: Energy supplementation; beef cattle; stockpiled crested wheatgrass

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Anez, F. (2013). EFFECT OF ENERGY SUPPLEMENTATION FROM BY-PRODUCT FEED PELLETS ON PRODUCTIVITY AND NUTRIENT UTILIZATION OF CATTLE GRAZING STOCKPILED CRESTED WHEATGRASS (Agropyron cristatum L.). (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/ETD-2013-09-1200

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Anez, Federico. “EFFECT OF ENERGY SUPPLEMENTATION FROM BY-PRODUCT FEED PELLETS ON PRODUCTIVITY AND NUTRIENT UTILIZATION OF CATTLE GRAZING STOCKPILED CRESTED WHEATGRASS (Agropyron cristatum L.).” 2013. Thesis, University of Saskatchewan. Accessed January 21, 2021. http://hdl.handle.net/10388/ETD-2013-09-1200.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Anez, Federico. “EFFECT OF ENERGY SUPPLEMENTATION FROM BY-PRODUCT FEED PELLETS ON PRODUCTIVITY AND NUTRIENT UTILIZATION OF CATTLE GRAZING STOCKPILED CRESTED WHEATGRASS (Agropyron cristatum L.).” 2013. Web. 21 Jan 2021.

Vancouver:

Anez F. EFFECT OF ENERGY SUPPLEMENTATION FROM BY-PRODUCT FEED PELLETS ON PRODUCTIVITY AND NUTRIENT UTILIZATION OF CATTLE GRAZING STOCKPILED CRESTED WHEATGRASS (Agropyron cristatum L.). [Internet] [Thesis]. University of Saskatchewan; 2013. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/10388/ETD-2013-09-1200.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Anez F. EFFECT OF ENERGY SUPPLEMENTATION FROM BY-PRODUCT FEED PELLETS ON PRODUCTIVITY AND NUTRIENT UTILIZATION OF CATTLE GRAZING STOCKPILED CRESTED WHEATGRASS (Agropyron cristatum L.). [Thesis]. University of Saskatchewan; 2013. Available from: http://hdl.handle.net/10388/ETD-2013-09-1200

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Saskatchewan

13. Pursley, Alex 1995-. THE EFFECT OF UTILIZING FORAGE PEA FOR HAY ON FEED INTAKE, RUMINAL FERMENTATION, AND DIGESTIBILITY WHEN FED TO BEEF CATTLE.

Degree: 2019, University of Saskatchewan

URL: http://hdl.handle.net/10388/12508

► The purpose of this research was to evaluate field pea (Pisum sativum L.; c.v. CDC Horizon) harvested as hay on feed intake, ruminal fermentation, and… (more)

▼ The purpose of this research was to evaluate field pea (Pisum sativum L.; c.v. CDC Horizon) harvested as hay on feed intake, ruminal fermentation, and total tract digestibility in beef heifers. In the first study, pea hay was mixed with barley (CDC Maverick) or oat (CDC Haymaker) hay at 0, 15, or 30% of the hay dry matter (DM), and offered ad libitum to ruminally-cannulated Hereford crossbred heifers in a 6 × 6 Latin square design. In the second study, field pea hay (CDC Horizon) was harvested at early, mid, or late stages of maturity. Pea hay was included at 40% of the dietary DM, and the diet was offered ad libitum to ruminally-cannulated Speckle Park heifers in a duplicate 3 × 3 Latin square design. In Study 1, dry matter intake increased with pea hay inclusion rate relative to 0% inclusion (P = 0.03). Ruminal fermentation was altered as mean ruminal pH increased with pea inclusion relative to 0% inclusion (P ≤ 0.013). There was no difference in total short-chain fatty acid (SCFA) concentration (P ≥ 0.55) while pea hay inclusion rate linearly increased butyrate and decreased propionate (P ≤ 0.013); furthermore, ruminal ammonia increased quadratically with inclusion rate (P < 0.001). Pea hay inclusion rate did not affect microbial protein synthesis or nitrogen retention (P ≥ 0.77). In Study 2, advancing maturity of pea hay resulted in numerically greater forage DM yield, but did not affect dry matter intake, ruminal SCFA concentration, or total tract digestibility. Advancing maturity decreased rumination (P ≤ 0.016), ruminal pH (P = 0.005), and ruminal passage rate (P = 0.022). The data from these two studies suggest that CDC Horizon field pea is a potential forage source for beef cattle that may increase CP content of the forage and increase dry matter intake without compromising ruminal fermentation. When field pea is grown in combination with cereal forage, the whole-crop pea may be harvested based upon the maturity of the cereal hay without concern of reduced feed intake or digestibility given that pea hay maturity had only minimal effects on cattle responses. Advisors/Committee Members: Penner, Greg, Biligetu, Bill, Warkentin, Tom, Lardner, Bart, Buchanan, Fiona, Weber, Lynn.

Subjects/Keywords: barley hay; oat hay; pea hay; beef cattle

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Pursley, A. 1. (2019). THE EFFECT OF UTILIZING FORAGE PEA FOR HAY ON FEED INTAKE, RUMINAL FERMENTATION, AND DIGESTIBILITY WHEN FED TO BEEF CATTLE. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/12508

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Pursley, Alex 1995-. “THE EFFECT OF UTILIZING FORAGE PEA FOR HAY ON FEED INTAKE, RUMINAL FERMENTATION, AND DIGESTIBILITY WHEN FED TO BEEF CATTLE.” 2019. Thesis, University of Saskatchewan. Accessed January 21, 2021. http://hdl.handle.net/10388/12508.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Pursley, Alex 1995-. “THE EFFECT OF UTILIZING FORAGE PEA FOR HAY ON FEED INTAKE, RUMINAL FERMENTATION, AND DIGESTIBILITY WHEN FED TO BEEF CATTLE.” 2019. Web. 21 Jan 2021.

Vancouver:

Pursley A1. THE EFFECT OF UTILIZING FORAGE PEA FOR HAY ON FEED INTAKE, RUMINAL FERMENTATION, AND DIGESTIBILITY WHEN FED TO BEEF CATTLE. [Internet] [Thesis]. University of Saskatchewan; 2019. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/10388/12508.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Pursley A1. THE EFFECT OF UTILIZING FORAGE PEA FOR HAY ON FEED INTAKE, RUMINAL FERMENTATION, AND DIGESTIBILITY WHEN FED TO BEEF CATTLE. [Thesis]. University of Saskatchewan; 2019. Available from: http://hdl.handle.net/10388/12508

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Saskatchewan

14. Stehr, Katelyn Rae 1993-. ALKALINE TREATMENT OF BARLEY STRAW AND ITS EFFECT ON DIGESTIBILITY, RUMEN FERMENTATION, FEEDLOT CATTLE PERFORMANCE AND PROFITABILITY.

Degree: 2019, University of Saskatchewan

URL: http://hdl.handle.net/10388/12338

► Micro-machine technology may provide cost-savings to feedlot producers, but they are unable to deliver limestone and salt into feedlot rations. Two experiments were conducted to… (more)

▼ Micro-machine technology may provide cost-savings to feedlot producers, but they are unable to deliver limestone and salt into feedlot rations. Two experiments were conducted to evaluate the effectiveness of treating barley straw with calcium oxide to improve forage quality and provide a calcium source in wheat-based finishing diets. Additionally, the impact of removing calcium (limestone) and salt from supplements was examined. Barley straw was treated with 5% CaO and hydrated to 50% moisture, then stored for 60 h before feeding or sampling in the trials. The first experiment examined in vitro and in situ trial improvements in forage digestibility associated with CaO treatment of barley straw and compared it to barley and corn silage. CaO did not improve (P=0.99) the in vitro NDFD of barley straw but did increase (P<0.01) in vitro DMD from 48.4% to 55.8%, however it remained lower than barley and corn silage. CaO treatment also reduced NDF content of barley straw from 77.8% to 65.8%. In situ effective rumen degradability of CaO straw was also improved (P<0.01) but remained lower than both silages. Indigestible NDF (uNDF) content was reduced with CaO treatment (38.9%; P<0.01) and was lower than barley straw (51.5%), barley silage (59.9%), and corn silage (56.3%). The second experiment examined feeding CaO treated straw (CaOS) in wheat-based finishing diets, as compared to barley silage and barley straw. An apparent digestibility trial examined nutrient digestibility and rumen parameters in cannulated heifers fed wheat-based diets with barley silage, barley straw or CaOS as the forage source. Two diets utilized CaOS and examined the impact of removing calcium and salt from the mineral and vitamin supplement. The same diets were fed to steers for 115 d prior to slaughter. A treatment was used to evaluate treating straw with CaO immediately before feeding. Apparent nutrient digestibility (DM, OM, ADF, NDF, starch) was not impacted by treatment (P>0.05). Rumen parameters (VFA, NH3, protozoa, rumen microbial N, pH) were not affected by treatment, with the exception of maximum rumen pH being reduced (P<0.001) in diets containing CaOS. Sodium intake was reduced (P<0.05) in the CaOS diet containing no supplemental salt or calcium and fecal Na excretion tended to be reduced (P<0.1) as well. However, the reduced excretion was not sufficient to result in improved Na retention (P>0.05). In the second trial, ADG and feed efficiency did not differ between steers fed barley silage and CaOS-no NaCl diets or straw+CaO diets, and was higher than barley straw and CaOS (with salt) diets (P<0.01). Carcass and liver abscess scores did not differ among diets, with the exception of a tendency for increased dressing percentage when barley silage was included in the diet (P<0.1). Economic analysis determined that feeding CaOS with no supplemental calcium or salt in wheat-based finishing diets reduced feed costs and cost of gain, making it an economically viable replacement for silage. Advisors/Committee Members: McKinnon, John, McAllister, Tim, Penner, Greg, Lardner, Bart, Yang, WenZhu, Buchanan, Fiona, Moya, Diego.

Subjects/Keywords: calcium oxide; alkaline treatment; beef cattle; straw; feedlot; digestibility

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Stehr, K. R. 1. (2019). ALKALINE TREATMENT OF BARLEY STRAW AND ITS EFFECT ON DIGESTIBILITY, RUMEN FERMENTATION, FEEDLOT CATTLE PERFORMANCE AND PROFITABILITY. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/12338

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Stehr, Katelyn Rae 1993-. “ALKALINE TREATMENT OF BARLEY STRAW AND ITS EFFECT ON DIGESTIBILITY, RUMEN FERMENTATION, FEEDLOT CATTLE PERFORMANCE AND PROFITABILITY.” 2019. Thesis, University of Saskatchewan. Accessed January 21, 2021. http://hdl.handle.net/10388/12338.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Stehr, Katelyn Rae 1993-. “ALKALINE TREATMENT OF BARLEY STRAW AND ITS EFFECT ON DIGESTIBILITY, RUMEN FERMENTATION, FEEDLOT CATTLE PERFORMANCE AND PROFITABILITY.” 2019. Web. 21 Jan 2021.

Vancouver:

Stehr KR1. ALKALINE TREATMENT OF BARLEY STRAW AND ITS EFFECT ON DIGESTIBILITY, RUMEN FERMENTATION, FEEDLOT CATTLE PERFORMANCE AND PROFITABILITY. [Internet] [Thesis]. University of Saskatchewan; 2019. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/10388/12338.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Stehr KR1. ALKALINE TREATMENT OF BARLEY STRAW AND ITS EFFECT ON DIGESTIBILITY, RUMEN FERMENTATION, FEEDLOT CATTLE PERFORMANCE AND PROFITABILITY. [Thesis]. University of Saskatchewan; 2019. Available from: http://hdl.handle.net/10388/12338

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

15. Zhang, Siping. Effect of the Severity of Short-Term Feed Restriction on Gut Function.

Degree: 2012, University of Saskatchewan

URL: http://hdl.handle.net/10388/ETD-2012-10-719

► The objective of this study was to evaluate whether different severities of short-term feed restriction (FR) affect the absorptive function of the reticulo-rumen and total… (more)

▼ The objective of this study was to evaluate whether different severities of short-term feed restriction (FR) affect the absorptive function of the reticulo-rumen and total tract barrier function in beef cattle and also to determine the timeline for recovery of these functions. Eighteen ruminally cannulated and ovariectomized Angus × Hereford heifers were blocked by BW and randomly assigned to 1 of 3 treatments differing in the severity of FR. Feed offered was restricted to 75, 50 and 25% of the ad libitum feed intake measured during FR relative to that measured during the 5-d baseline period (BASE). Feed restriction (FR) was imposed for 5 d followed by 3 consecutive wk of recovery in which cattle were fed ad libitum (REC1, REC2 and REC3). Throughout the study, heifers were housed in individual pens (9 m2) and were fed the same diet (60% forage: 40% concentrate) with free access to water. Dry matter intake (DMI) was measured daily and ruminal pH was measured every 2 min throughout the study. Ruminal fluid and blood samples were collected on d 3 of the BASE and FR and on d 5 of REC1 and REC3. The temporarily isolated and washed reticulo-rumen technique (WRR) was used to evaluate short-chain fatty acid (SCFA) absorption on the last day of BASE, FR, REC1 and REC3. Total tract barrier function was evaluated starting on d 2 of the BASE and FR and on d 4 of REC1 and REC3 using a pulse dose of chromium ethylenediaminetetraacetic acid (Cr-EDTA) followed by 48-h of total urine collection. Dry matter intake did not differ among treatments during BASE but, as imposed by the experimental model, DMI during FR relative to BASE equated to 70, 49, and 25%, which was close to the targeted values of 75, 50, and 25% (treatment × period, P < 0.001). A treatment × period interaction (P < 0.001) was also detected for SCFA concentration with the concentration decreasing as the severity of FR increased, whereas there were no differences during BASE. Absorption of SCFA across the reticulo-rumen tended to decrease with increasing severity of FR (P = 0.080). Acetate absorption (mmol/h) decreased (P = 0.050) by almost 70 mmol/h at 25 and 50% feed relative to BASE (322 mmol/h). Heifers restricted to 25% feed had greater urinary Cr recovery during FR than BASE while no changes were detected for those restricted to 75 and 50%. After FR, DMI (% BW) increased rapidly in REC1 for heifers restricted to 75 and 50%; however heifers restricted to 25% needed at least 2 wk to recover (treatment × period, P < 0.001). Regardless of the severity of FR, the duration that pH < 5.5 was highest during REC1 (period P < 0.001). A treatment × period interaction was observed for the absolute absorption rate of total SCFA (P = 0.009) where the total SCFA absorption rate was not different for heifers restricted to 75 and 50% across periods while an increase from FR and REC1 to REC3 was detected for heifers restricted to 25% of ad libitum intake. A treatment effect was observed for urinary Cr output (P = 0.027) indicating that heifers previously… Advisors/Committee Members: Penner, Greg, McKinnon, John, Mutsvangwa, Tim.

Subjects/Keywords: Absorptive Function; Barrier Function; Cattle; Feed Restriction; Severity; Short-Term

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Zhang, S. (2012). Effect of the Severity of Short-Term Feed Restriction on Gut Function. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/ETD-2012-10-719

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Zhang, Siping. “Effect of the Severity of Short-Term Feed Restriction on Gut Function.” 2012. Thesis, University of Saskatchewan. Accessed January 21, 2021. http://hdl.handle.net/10388/ETD-2012-10-719.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Zhang, Siping. “Effect of the Severity of Short-Term Feed Restriction on Gut Function.” 2012. Web. 21 Jan 2021.

Vancouver:

Zhang S. Effect of the Severity of Short-Term Feed Restriction on Gut Function. [Internet] [Thesis]. University of Saskatchewan; 2012. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/10388/ETD-2012-10-719.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Zhang S. Effect of the Severity of Short-Term Feed Restriction on Gut Function. [Thesis]. University of Saskatchewan; 2012. Available from: http://hdl.handle.net/10388/ETD-2012-10-719

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

16. Yang, Hee Eun. Comparsion of digestion and particle-associated bacteria after in situ incubation of different barley varieties in the rumen of cattle.

Degree: 2017, University of Saskatchewan

URL: http://hdl.handle.net/10388/8193

► The chemical composition of barley grain, including the structure of starch, can vary among barley varieties and result in different digestion efficiencies. It is not… (more)

▼ The chemical composition of barley grain, including the structure of starch, can vary among barley varieties and result in different digestion efficiencies. It is not known if compositional differences in barley can affect the particle-associated bacteria (PAB) involved in digestion. Therefore, the objective of this study was to characterize the in situ rumen digestion and PAB of four barley grain varieties. Three ruminally-cannulated heifers were fed a low grain (60% barley silage, 37 % barley grain and 3% supplement) or high grain (37% barley silage, 60% barley grain and 3% supplement) diet. Four different barley varieties (Fibar, Xena, McGwire and Hilose) and corn as a control were included in the experiment. A series of rumen incubations were carried out. One set of bags (3 heifers x 3 bags/time point/treatment; n=9) containing 3 g of ground grain was used to estimate dry matter (DM), starch and crude protein (CP) disappearance. A second set of bags (2 heifers x 3 bags/time point/ treatment; n=6) containing 5 g of ground grain were incubated and used for DNA extraction. A third set of bags (2 heifers x 2 bags/time point/treatment; n=4) containing ground grain (5 g) were incubated and examined using scanning electron microscopy (SEM). The same two heifers were used for DNA and SEM bags. Bags to estimate nutrient digestion were incubated for 0, 2, 4, 12, 24 and 48 h and for 2, 4, and 12 h for DNA extraction and SEM. DNA was extracted to characterize PAB via 16S rRNA gene sequencing followed by analysis using QIIME. In the low grain diet, McGwire had the highest effective degradability (ED) of DM (P<0.01), followed by Xena, Fibar, Hilose, and corn, respectively. The ED of starch was highest (P<0.01) for Fibar, McGwire, and Xena, followed by Hilose and Corn while the ED of protein showed that Corn had lower ED than barley grains. For the high grain diet, Fibar and McGwire had the highest ED of DM (P<0.01), followed by Fibar, Hilose and corn, respectively. The ED of starch was highest (P<0.01) for Xena and Fibar, followed by McGwire, Hilose and corn. The ED of protein was highest (P<0.01) for Fibar (55.0%) and lowest for Corn (32.0%). Barley variety did not affect the relative abundance of phyla, but they did differ with incubation time in both the low and high grain diets. However, after 12 h of incubation the diversity of bacteria differed from that after 2 and 4 h of incubation in the rumen with both diets. Lactobacillus (approximately 80%) dominanted after 12 h of incubation when cattle were fed low grain diet, with both Prevotella and Lactobacillus being the most abundant genera after 12 h of incubation with the high grain diet. This study found that the diversity of PAB on barley grain was not affected by barley variety, despite there being differences in digestion kinetics. However, time affected PAB, illustrating that the bacterial biofilm involved in the digestion of grains clearly undergoes compositional shifts during ruminal digestion. Moreover, the digestibility and bacterial biofilm were… Advisors/Committee Members: Laarveld, Bernard, Penner, Greg, Van Kessel, Andrew, Dumonceaux, Tim.

Subjects/Keywords: particle-associated bacteria; barley grain; in situ; rumen; cattle

…University of Saskatchewan (U of S), the National Research Council (NRC), the…

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APA (6^th Edition):

Yang, H. E. (2017). Comparsion of digestion and particle-associated bacteria after in situ incubation of different barley varieties in the rumen of cattle. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/8193

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Yang, Hee Eun. “Comparsion of digestion and particle-associated bacteria after in situ incubation of different barley varieties in the rumen of cattle.” 2017. Thesis, University of Saskatchewan. Accessed January 21, 2021. http://hdl.handle.net/10388/8193.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Yang, Hee Eun. “Comparsion of digestion and particle-associated bacteria after in situ incubation of different barley varieties in the rumen of cattle.” 2017. Web. 21 Jan 2021.

Vancouver:

Yang HE. Comparsion of digestion and particle-associated bacteria after in situ incubation of different barley varieties in the rumen of cattle. [Internet] [Thesis]. University of Saskatchewan; 2017. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/10388/8193.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Yang HE. Comparsion of digestion and particle-associated bacteria after in situ incubation of different barley varieties in the rumen of cattle. [Thesis]. University of Saskatchewan; 2017. Available from: http://hdl.handle.net/10388/8193

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

17. Albornoz, Rodrigo. Albornoz,Rodrigo_MSc_Short-term feed restriction in cattle-mitigating negative effects by altering the forage-to-concentrate ratio of the die_January_2013.

Degree: 2013, University of Saskatchewan

URL: http://hdl.handle.net/10388/ETD-2013-01-905

► The objective of this thesis was to evaluate the effects of altering the forage-to-concentrate ratio (F:C) of the diets fed prior-to and during a period… (more)

▼ The objective of this thesis was to evaluate the effects of altering the forage-to-concentrate ratio (F:C) of the diets fed prior-to and during a period of severe short-term feed restriction (FR) and the dietary F:C following FR on ruminal fermentation and short-chain fatty acid (SCFA) absorption. Twenty ruminally cannulated Angus × Hereford heifers were fed ad libitum either a high-forage diet (HF) with a F:C of 92:8 or a moderate-forage diet (MF) with a F:C of 60:40 during a 5-d baseline period (BASE), followed by 5-d of FR at 25% of their ad libitum intake (collectively represented as PRE). After exposure to FR, heifers were provided feed for ad libitum intake and the recovery was monitored for 3 consecutive weeks (REC1, REC2 and REC3; collectively denoted as POST), with one half of the HF and MF heifers remaining on the same diet, and the other half switched to the alternative diet. Dry matter intake (DMI) was measured daily and ruminal pH was recorded every 2 min. Ruminal fluid was collected on d 3 of BASE and FR, and on d 5 of each REC week. Ruminal SCFA absorption was assessed in vivo using the isolated washed reticulo-rumen technique on d 5 of BASE and FR and on d 7 of REC1 and REC3. Data were analyzed as a complete randomized block design to evaluate 1) the effects of FR (BASE vs. FR) when feeding a HF or a MF diet, and 2) the effects of the F:C of the diet fed PRE and the diet fed POST on the recovery from a period of short-term FR. With respect to the effect of the F:C of the diet fed PRE on the response to FR, diet × period interactions were detected for DMI (P = 0.030) and ruminal SCFA concentration (P = 0.025), respectively. The interactions were the result of higher DMI and numerically higher SCFA concentration for MF than HF during BASE, with a reduction observed for both during FR, although diet effects were no longer present during FR. Period effects (BASE vs. FR), but not diet effects (P > 0.05), were detected for mean ruminal pH (P < 0.001) and the total SCFA absorption rate (mmol/h; P = 0.038). During BASE, mean pH was lower (6.44 vs. 6.86) and the SCFA absorption rate was greater relative to FR (674.5 vs. 554.8 mmol/h). It can be concluded that FR had a negative impact on ruminal SCFA absorption, while altering the diet F:C does not mitigate these effects. With respect to the recovery response, PRE × POST and PRE × POST × period interactions were tested but were not significant, thus the interactions for the PRE × period and POST × period are emphasized and main effects of diet and period are presented when the interactions were not significant. Interactions (PRE × period) were detected for DMI (P = 0.045) and duration (amount of time pH < 5.5; P = 0.003). For heifers fed HF during PRE, DMI increased from REC1 to REC2, and from REC2 to REC3, while for heifers fed MF DMI did not differ among REC periods. Duration (amount of time pH < 5.5) was numerically higher during REC1 for heifers fed HF than MF PRE (191 vs. 98 min/d), with duration decreasing from REC1 to REC2 with no further… Advisors/Committee Members: Penner, Greg B., Mutsvangwa, Tim, Beauchemin, Karen, McKinnon, John.

Subjects/Keywords: beef cattle; feed restriction; forage-to-concentrate ratio; ruminal pH; short-chain fatty acid absorption

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APA (6^th Edition):

Albornoz, R. (2013). Albornoz,Rodrigo_MSc_Short-term feed restriction in cattle-mitigating negative effects by altering the forage-to-concentrate ratio of the die_January_2013. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/ETD-2013-01-905

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Albornoz, Rodrigo. “Albornoz,Rodrigo_MSc_Short-term feed restriction in cattle-mitigating negative effects by altering the forage-to-concentrate ratio of the die_January_2013.” 2013. Thesis, University of Saskatchewan. Accessed January 21, 2021. http://hdl.handle.net/10388/ETD-2013-01-905.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Albornoz, Rodrigo. “Albornoz,Rodrigo_MSc_Short-term feed restriction in cattle-mitigating negative effects by altering the forage-to-concentrate ratio of the die_January_2013.” 2013. Web. 21 Jan 2021.

Vancouver:

Albornoz R. Albornoz,Rodrigo_MSc_Short-term feed restriction in cattle-mitigating negative effects by altering the forage-to-concentrate ratio of the die_January_2013. [Internet] [Thesis]. University of Saskatchewan; 2013. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/10388/ETD-2013-01-905.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Albornoz R. Albornoz,Rodrigo_MSc_Short-term feed restriction in cattle-mitigating negative effects by altering the forage-to-concentrate ratio of the die_January_2013. [Thesis]. University of Saskatchewan; 2013. Available from: http://hdl.handle.net/10388/ETD-2013-01-905

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

18. Sahtout, Khalil. The Effect of Sorting Wheat or Barley, Based on the Predicted Crude Protein Content, on Physical Characteristics, Feed Processing Characteristics and Nutrient Digestibility.

Degree: 2018, University of Saskatchewan

URL: http://hdl.handle.net/10388/11718

► Variability in the physiochemical profile of cereal grains represents a challenge for the livestock industry. Currently, nutrient values are based on sample averages, ignoring the… (more)

▼ Variability in the physiochemical profile of cereal grains represents a challenge for the livestock industry. Currently, nutrient values are based on sample averages, ignoring the variation between individual seeds. These experiments were designed to determine if: (1) fractions obtained by an instrument calibrated to separate individual kernels based on predicted crude protein (CP) content have different physical characteristics and/or differ in dry matter digestibility (DMD) and amino acid digestibility (AAD); (2) the grinding method and intensity differentially influences digestibility of each fraction; and (3) hydrothermal treatment effects differ for the individual fractions. The BoMill TriQ (TriQ), which employs near infrared transmittance spectroscopy (NIT), was used to separate individual kernels based on predicted CP content. In the first study, the TriQ was used to sort six independent sources of wheat into ten fractions each. A minimum of 100 kernels from each fraction were randomly selected and used to obtain measurements of length, width, height, area, DGM, perimeter, sphericity, colour (HunterLab), and mass. HunterLab was used to determine L (100 white to 0 black) a (-a green to +a red) b (-b blue to +b yellow). Data were analyzed as a complete randomized design (CRD) using Proc Mixed procedure of SAS 9.4 with the fixed effect being fraction. Physical characteristics were not different among fractions (P > 0.10), except that fractions with lower predicted CP content tended to have greater L* (54.12 vs. 50.95) based on the HunterLab calorimetric approach (P < 0.10). In the second study, two fractions [predicted high CP (HCP) and low CP (LCP)] produced from five independent sources of feed grade wheat or barley, were compared to the unsorted (UNS) grain. Each fraction (UNS, HCP, and LCP) was ground through a 0.375-mm (coarse grind) or a 0.188-mm (fine grind) screen using a hammer mill or a roller mill to produce coarse and fine treatments. The UNS fraction was used to adjust the roller mill to produce ground samples with a similar processing index (w/v) relative to the hammer mill. In vitro DMD (using rumen inoculum; %), starch digestibility (%) and total gas production (TGP; mL) were determined after a 12-h incubation. Data were analyzed independently by grain type including the effects of fraction, grinder type and severity of processing, and their interactions. A split plot iii design was used where main plot was fraction and the subplots were grinder type and severity of grinding. Significance was defined as P < 0.05 and a trend was defined as P > 0.05 and P < 0.10. The TGP (mL) and DMD (%) of barley ground using a hammer mill were greater than when processed using a roller mill (P < 0.05; 59.4 mL ± 2.0 mL and 41.8% ± 1.0%, respectively). A similar response was observed for wheat processed using either a hammer mill or a roller mill (P < 0.05; 63.8 mL ± 1.4 mL and 27.8% ± 1.5%, respectively). Increasing the severity of processing increased TGP (47.4 mL ± 1.96 mL vs 35.9 mL ± 1.98 mL), DMD (P < 0.05;… Advisors/Committee Members: Penner, Greg, Beaulieu, Denise, Tabil, Lope, Buchanan, Fiona.

Subjects/Keywords: Grain; Feed; NIR; Swine; Beef.

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APA (6^th Edition):

Sahtout, K. (2018). The Effect of Sorting Wheat or Barley, Based on the Predicted Crude Protein Content, on Physical Characteristics, Feed Processing Characteristics and Nutrient Digestibility. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/11718

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Sahtout, Khalil. “The Effect of Sorting Wheat or Barley, Based on the Predicted Crude Protein Content, on Physical Characteristics, Feed Processing Characteristics and Nutrient Digestibility.” 2018. Thesis, University of Saskatchewan. Accessed January 21, 2021. http://hdl.handle.net/10388/11718.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Sahtout, Khalil. “The Effect of Sorting Wheat or Barley, Based on the Predicted Crude Protein Content, on Physical Characteristics, Feed Processing Characteristics and Nutrient Digestibility.” 2018. Web. 21 Jan 2021.

Vancouver:

Sahtout K. The Effect of Sorting Wheat or Barley, Based on the Predicted Crude Protein Content, on Physical Characteristics, Feed Processing Characteristics and Nutrient Digestibility. [Internet] [Thesis]. University of Saskatchewan; 2018. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/10388/11718.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Sahtout K. The Effect of Sorting Wheat or Barley, Based on the Predicted Crude Protein Content, on Physical Characteristics, Feed Processing Characteristics and Nutrient Digestibility. [Thesis]. University of Saskatchewan; 2018. Available from: http://hdl.handle.net/10388/11718

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

19. Schwaiger, Tyler. The effect of dietary adaptation on the susceptibility to and recovery from ruminal acidosis in beef cattle.

Degree: 2013, University of Saskatchewan

URL: http://hdl.handle.net/10388/ETD-2013-04-1012

► Feeding diets rich in rapidly fermentable non-structural carbohydrates can lead to the development of ruminal acidosis. This study was conducted to determine if the duration… (more)

▼ Feeding diets rich in rapidly fermentable non-structural carbohydrates can lead to the development of ruminal acidosis. This study was conducted to determine if the duration of time that cattle are fed a high-grain diet affects their absorption of short-chain fatty acids (SCFA) and susceptibility to, and recovery from, ruminal acidosis. Sixteen Angus heifers (BW ± SEM, 261 ± 6.1 kg) were assigned to 1 of 4 blocks, and fed a backgrounding diet consisting of 60% barley silage, 30% barley grain, and 10% supplement (DM basis). Within block, cattle were randomly assigned to 1 of 2 treatments differing in the number of days they were fed the high-grain diet prior to an acidosis challenge: 34 d for long-adapted (LA) and 8 d for short-adapted (SA). All cattle were exposed to the same 20-d dietary transition using 5 dietary steps until achieving the final diet that contained 9% barley silage, 81% barley grain, and 10% supplement (DM basis). Data were collected during an 8-d baseline period (BASE), on the d of the acidosis challenge (CHAL), and during two consecutive 8 d recovery periods (REC1 and REC2). Ruminal acidosis was induced by restricting feed to 50% of DMI:BW for 24 h followed by an intraruminal infusion of ground barley at 10% DMI:BW. Cows were then given their regular diet allocation 1 h after the intraruminal infusion. The duration of time fed the high-grain diet did not affect ruminal pH, lactate, or SCFA concentrations (P > 0.050). However, during BASE and on the day of CHAL the SA heifers experienced greater linear (P = 0.031), quadratic (P = 0.016), and cubic (P = 0.008) between day change in the duration of time that pH was < 5.5 than LA heifers. Relative to BASE, inducing acidosis increased daily duration (531 to 1020 min/d; P < 0.001) and area (176 to 595 (min × pH)/d; P < 0.001) that pH was < 5.5. Inducing ruminal acidosis also increased the daily mean (0.3 to 11.4 mM; P = 0.013) and maximum (1.3 to 29.3 mM; P = 0.008) rumen fluid lactate concentrations relative to BASE, suggesting that an acute bout of ruminal acidosis was induced. In addition, a treatment × day interaction for the duration that pH was < 5.5 during REC1 suggests that LA cattle tended to recover from the CHAL more rapidly than SA cattle (P = 0.085). Indeed, analysis of covariance confirmed that the LA heifers experienced a quicker linear (P = 0.019) recovery over time from CHAL. The greater rate of recovery possibly resulted from the LA heifers having greater rates of both fractional butyrate (45 vs. 36 %/h; P = 0.019) and propionate absorption (42 vs. 34 %/h; P = 0.045), and tending to have greater rates, on an absolute basis, of butyrate absorption (94 vs. 79 mmol/h; P = 0.087) iii and, on a fractional basis, of total SCFA absorption (37 vs. 32 %/h; P = 0.100). Treatment × period interactions revealed that LA heifers had greater serum D-lactate concentrations (P = 0.003), and fractional rates of lactate absorption (P = 0.024) than SA heifers, during CHAL and REC1, respectively. When treatments were pooled, the absorption (%/h and mmol/h)… Advisors/Committee Members: Penner, Greg B., Beauchemin, Karen A., Mutsvangwa, Tim, McKinnon, John J..

Subjects/Keywords: Dietary adaptation; Short-chain fatty acid absorption; lactate absorption; Ruminal pH; Ruminal acidosis

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Schwaiger, T. (2013). The effect of dietary adaptation on the susceptibility to and recovery from ruminal acidosis in beef cattle. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/ETD-2013-04-1012

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Schwaiger, Tyler. “The effect of dietary adaptation on the susceptibility to and recovery from ruminal acidosis in beef cattle.” 2013. Thesis, University of Saskatchewan. Accessed January 21, 2021. http://hdl.handle.net/10388/ETD-2013-04-1012.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Schwaiger, Tyler. “The effect of dietary adaptation on the susceptibility to and recovery from ruminal acidosis in beef cattle.” 2013. Web. 21 Jan 2021.

Vancouver:

Schwaiger T. The effect of dietary adaptation on the susceptibility to and recovery from ruminal acidosis in beef cattle. [Internet] [Thesis]. University of Saskatchewan; 2013. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/10388/ETD-2013-04-1012.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Schwaiger T. The effect of dietary adaptation on the susceptibility to and recovery from ruminal acidosis in beef cattle. [Thesis]. University of Saskatchewan; 2013. Available from: http://hdl.handle.net/10388/ETD-2013-04-1012

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

20. Jancewicz, Larisa J. Using near infrared spectroscopy of feces to predict growth performance in finishing feedlot cattle.

Degree: 2017, University of Saskatchewan

URL: http://hdl.handle.net/10388/7747

► The objective of this thesis was to use fecal composition and apparent total tract digestibility (aTTD) as predicted by near infrared spectroscopy (NIRS) to assess… (more)

▼ The objective of this thesis was to use fecal composition and apparent total tract digestibility (aTTD) as predicted by near infrared spectroscopy (NIRS) to assess growth performance in commercial feedlot cattle. Studies were conducted to 1) develop and validate NIRS calibrations using dried ground feces from cattle, 2) determine the optimal timing of sample collection, 3) compare samples collected from the pen floor versus rectum, 4) determine the optimal number of fecal samples to collect from a pen, 5) determine if NIRS could be used to detect changes in fecal nutrient concentrations and aTTD for a variety of diets, 6) find associations between fecal parameters and growth performance, 7) use NIRS of feed to predict energy content of grain screening pellets (GSP), 8) and assess the ability of fecal NIRS to predict dry matter intake (DMI), average daily gain (ADG), and gain to feed ratio (G:F) of feedlot cattle in a commercial feedlot. Fecal NIRS calibrations yielded accurate predictions (R2CV > 0.90, SECV < 2.42) for all fecal constituents except fat, and accuracy of predicting aTTD was high for starch (R2CV = 0.84, SECV = 1.06), moderate for DM, OM, CP, and GE (R2CV > 0.71, SECV < 2.88), but poor for NDF and ADF (R2CV < 0.33, SECV > 7.86). Most fecal nutrients and apparent total tract digestibility (aTTD) predictions varied over 24 h, however spot fecal samples collected at any time point from multiple cattle could be used as predictors of chemical composition and digestibility. Morning samples collected within 0 to 4 h after first feeding are optimal for estimating fecal starch and aTTD of starch. Except for DM, which was higher (P < 0.01) in pen floor than rectal fecal samples, there were minimal differences in fecal constituents between collection methods. When diets were fed containing wheat or increasing levels of silage in place of barley, aTTD of GE predicted using NIRS was related to net energy of gain (NEg) of the diets as estimated by performance (R2 = 0.58, P = 0.03 and R2 = 0.43, P < 0.01, respectively). Similarly, observed ADG could be predicted using NIRS of feces for steers fed wheat (R2 = 0.48, P = 0.05) and increasing levels of silage (R2 = 0.40, P < 0.01), but not G:F. Compared to measured performance data, NIRS over predicted the energy content of grain screening pellets. When comparing cattle of different sexes, different processing methods and grain types, a quadratic relationship was observed between fecal starch, sex, average BW at time of sampling, and G:F (rho = 0.75, P < 0.01). These data indicate that NIRS predictions using dried ground feces collected from the pen floor from multiple feedlot cattle could predict G:F of feedlot cattle with reasonable certitude when variables such as BW and sex were included in the model. Advisors/Committee Members: Mcallister, Tim A, Penner, Greg, Beauchemin, Karen, Swift, Marylou, McKinnon, John, Waldner, Cheryl, Laarveld, Bernard.

Subjects/Keywords: Feedlot cattle; near infrared spectroscopy; fecal starch; feed efficiency

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APA (6^th Edition):

Jancewicz, L. J. (2017). Using near infrared spectroscopy of feces to predict growth performance in finishing feedlot cattle. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/7747

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Jancewicz, Larisa J. “Using near infrared spectroscopy of feces to predict growth performance in finishing feedlot cattle.” 2017. Thesis, University of Saskatchewan. Accessed January 21, 2021. http://hdl.handle.net/10388/7747.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Jancewicz, Larisa J. “Using near infrared spectroscopy of feces to predict growth performance in finishing feedlot cattle.” 2017. Web. 21 Jan 2021.

Vancouver:

Jancewicz LJ. Using near infrared spectroscopy of feces to predict growth performance in finishing feedlot cattle. [Internet] [Thesis]. University of Saskatchewan; 2017. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/10388/7747.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Jancewicz LJ. Using near infrared spectroscopy of feces to predict growth performance in finishing feedlot cattle. [Thesis]. University of Saskatchewan; 2017. Available from: http://hdl.handle.net/10388/7747

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

21. Hettiarachchi Gamage, Inoka. Structural, chemical and nutrient characterization of original feed stock and co-products from a newly built biofuel plant in Saskatchewan.

Degree: 2012, University of Saskatchewan

URL: http://hdl.handle.net/10388/ETD-2012-08-608

► The objective of this study was to determine the structural, chemical and nutrient variation associated with different batches of original feedstock grain (wheat) and co-products… (more)

▼ The objective of this study was to determine the structural, chemical and nutrient variation associated with different batches of original feedstock grain (wheat) and co-products (wheat distillers dried grain with solubles, wDDGS) from bioethanol processing and to study possibility of using molecular spectroscopy FT/IR-ATR technique as a rapid tool of identifying the structure spectral differences among the batches. The samples were collected from different batches of wheat and wDDGS produced from the same and newly build bioethanol plant in western Canada with updated bioethanol processing technology.. The results of chemical composition analysis showed significant differences (P<0.05) among the batches of wheat and among the batches of wDDGS. The variation in term of range among the batches of wheat for crude protein (CP), neutral detergent fibre (NDF) and acid detergent fibre (ADF) were 2.1, 2.5 and 1.0 %DM, respectively. Among the batches of wDDGS, the variation in CP, NDF and ADF were 3.9, 5.2 and 3.8 %DM, respectively. The soluble crude protein (SCP) content ranged by 7.2% of CP among the batches of wheat and by 4.2% of CP among the batches of wDDGS. In mineral profiles, variation among the batches of wheat and wDDGS in sulfur were 0.03 and 0.34 % of DM, respectively. In mineral profiles, higher phosphorus and sulfur content associated with wDDGS could be a concern. The sulfur content ranged by 0.3 % of DM among the batches of wDDGS with a mean of 1.1 %DM. For the estimated subfractions with Cornell Net Carbohydrate and Protein System (CNCPS), the immediately rumen available PA fraction (NPN) ranged by 14.8 % of CP among the batches of wheat and by 2.7 % of CP among batches of wDDGS. The particle size analysis revealed the small particle size in all three batches of wDDGS with the geometric mean of ranging from 650-690 µm. In situ rumen degradation kinetic results showed a significant differences (P<0.05) among both wheat and wDDGS batches. Multivariate molecular spectral analyses showed a potential of using FT/IR molecular vibrational spectroscopy as a rapid method to identify structure difference associated with different batches. In conclusion, the structural, chemical and nutrient availability vary among the batches of wheat and among the batches of wDDGS. The molecular spectroscopy shows a potential as a rapid tool to identify batch difference in chemical and nutrient profiles and to detect the response of functional group to bioethanol processing. Further study is needed to analyse molecular spectral characteristics in details for development of a successful identification tool to identify batch differences. The variation among the batches of wDDGS should be considered in ration formulation especially at high inclusion rates (40-50% wDDGS in diet DM) even the co-products are produced from the same bioethanol plant. Advisors/Committee Members: Yu, Peiqiang, Christensen, David A., Penner, Greg, Buchanan, Fiona, Pozniak, Curtis.

Subjects/Keywords: Wheat; Dried-distillers-grains with solubles; Nutrients; Spectroscopy

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APA (6^th Edition):

Hettiarachchi Gamage, I. (2012). Structural, chemical and nutrient characterization of original feed stock and co-products from a newly built biofuel plant in Saskatchewan. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/ETD-2012-08-608

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Hettiarachchi Gamage, Inoka. “Structural, chemical and nutrient characterization of original feed stock and co-products from a newly built biofuel plant in Saskatchewan.” 2012. Thesis, University of Saskatchewan. Accessed January 21, 2021. http://hdl.handle.net/10388/ETD-2012-08-608.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Hettiarachchi Gamage, Inoka. “Structural, chemical and nutrient characterization of original feed stock and co-products from a newly built biofuel plant in Saskatchewan.” 2012. Web. 21 Jan 2021.

Vancouver:

Hettiarachchi Gamage I. Structural, chemical and nutrient characterization of original feed stock and co-products from a newly built biofuel plant in Saskatchewan. [Internet] [Thesis]. University of Saskatchewan; 2012. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/10388/ETD-2012-08-608.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Hettiarachchi Gamage I. Structural, chemical and nutrient characterization of original feed stock and co-products from a newly built biofuel plant in Saskatchewan. [Thesis]. University of Saskatchewan; 2012. Available from: http://hdl.handle.net/10388/ETD-2012-08-608

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

22. Edrosolam, Marilyn. Processing strategies for low-salt, low-fat bologna.

Degree: 2013, University of Saskatchewan

URL: http://hdl.handle.net/10388/ETD-2013-01-880

► Two studies on potential approaches for processing low-salt, low-fat (LSLF) bologna were completed. In study 1, the effects of three factors, namely salt type (sea… (more)

▼ Two studies on potential approaches for processing low-salt, low-fat (LSLF) bologna were completed. In study 1, the effects of three factors, namely salt type (sea salt vs. regular NaCl), NaCl concentration (0.75%, 1.00%, 1.25% and 2.00%) and holding of stuffed batter before cooking (cooked immediately (CI) vs. delayed cooking (DC)), on the quality of LSLF bologna were investigated. There was no difference between salt type for most of the parameters measured. The holding factor significantly improved the water holding capacity (WHC) and texture of bologna samples containing 0.75% NaCl, as shown by lower (p<0.05) expressible moisture. However, holding factor did not affect WHC and instrumental texture of samples with 1.00%, 1.25% or 2.00% NaCl. A NaCl level by hold effect (p<0.05) was observed for texture profile analysis (TPA) in which there was significant improvement in the texture of samples containing 0.75% NaCl that were subjected to DC, but no effect at other NaCl levels. Panelists were able to detect the positive effect (p<0.05) of DC on the texture of samples with 0.75% or 1.00% NaCl. This study showed that DC is effective in improving the texture of bologna samples with extremely low NaCl (0.75%) content. The biggest challenge in this first study was the difficult sample handling experienced during slicing. Since bologna is commonly sold as thin slices, the bologna must be firm enough for ease of slicing. The second study focused on improving bologna firmness by the addition of microbial transglutaminase (MTG), known for its functionality as a protein cross-linker, and of flaxseed meal (FSM), known for its excellent water holding capacity. The physico-chemical and sensory characteristics of 12 treatment combinations (0, 0.15% and 0.30% MTG; 0, 0.5%, 1.0% and 1.5% FSM) were determined. In general, results showed that MTG significantly improved the textural quality of bologna, but resulted in a higher purge loss during storage of vacuum packaged slices. On the other hand, FSM significantly reduced the expressible moisture content and purge loss of the product. In terms of product colour, MTG had no effect but FSM when added to the formulation at level as low as 0.5%, affected the colour as determined by both instrumental and sensory evaluation. The overall results of the project indicated that texture in LSLF bologna is not a major issue, since processing conditions and combinations of ingredients can be manipulated to improve texture. The biggest challenge, however, is in the area of flavour – improving the flavour of low-salt processed meats warrants further research. Advisors/Committee Members: Shand, Phyllis P., Arganosa, Gene, Korber, Darren, Tyler, Robert, Penner, Greg.

Subjects/Keywords: low-salt; low-fat; sea salt; ionic strength; delayed cooking; microbia translutaminase; flaxseed meal

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APA (6^th Edition):

Edrosolam, M. (2013). Processing strategies for low-salt, low-fat bologna. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/ETD-2013-01-880

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Edrosolam, Marilyn. “Processing strategies for low-salt, low-fat bologna.” 2013. Thesis, University of Saskatchewan. Accessed January 21, 2021. http://hdl.handle.net/10388/ETD-2013-01-880.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Edrosolam, Marilyn. “Processing strategies for low-salt, low-fat bologna.” 2013. Web. 21 Jan 2021.

Vancouver:

Edrosolam M. Processing strategies for low-salt, low-fat bologna. [Internet] [Thesis]. University of Saskatchewan; 2013. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/10388/ETD-2013-01-880.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Edrosolam M. Processing strategies for low-salt, low-fat bologna. [Thesis]. University of Saskatchewan; 2013. Available from: http://hdl.handle.net/10388/ETD-2013-01-880

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

23. Wiese, Brittany I 1988-. DEFINING THE RISK, PREVALENCE, AND PATHOLOGICAL THRESOLD OF LOW RUMINAL pH IN FEELOT CATTLE.

Degree: 2017, University of Saskatchewan

URL: http://hdl.handle.net/10388/7770

► The diet transition phase is thought to be the highest risk period for development of low ruminal pH, while pathology associated with low reticulo-ruminal pH… (more)

▼ The diet transition phase is thought to be the highest risk period for development of low ruminal pH, while pathology associated with low reticulo-ruminal pH (RRpH) induced ruminal acidosis (RA) is often found at slaughter, months after the diet transition. Two experiments were conducted to 1) determine the risk of low RRpH during the transition phase and 2) explore the association of rumen fermentation and acute phase protein response during finishing with pathology identified post mortem. In experiment 1, RRpH was measured in 32 mixed breed steers (n = 16) and heifers (n = 16) housed in commercial feedlot pens with 227 ±13 and 249 ± 6 hd/pen cohort steers and heifers, respectively. Cattle were transitioned from a diet containing 46.5% forage and 53.5% concentrate to a diet containing 9.5% forage and 90.5% concentrate dry matter (DM) basis) over 40 d. In addition, wheat replaced barley as the grain source during the dietary transition. Both mean and minimum RRpH decreased as the proportion of concentrate in the diet increased. The area (duration severity) that RRpH was < 5.6, duration that RRpH was <5.6, and the number of cattle experiencing a bout of low RRpH (pH < 5.6 for > 180 min), increased with increasing concentrate. Despite having a high risk for low RRpH, most cattle had only 1-3 bouts of low RRpH during the diet transition, and extent was mild. Steers had greater dry matter intake (DMI), lower RRpH, and greater standard deviation of RRpH than heifers, suggesting that susceptibility to RA may differ between steers and heifers. In experiment 2, ruminal pH, short-chain fatty acid concentrations and serum acute phase proteins were measured in 28 cannulated steers during the final 5 wk of finishing when fed a diet containing 5% forage and 95% concentrate (DM basis). Rumen and livers were examined and pathology scores were determined at slaughter. There was no difference in minimum pH, mean pH, or duration that ruminal pH was < 5.5 between steers with or without pathology. However, steers with pathology spent more time with ruminal pH < 5.2 and tended to spend more time with ruminal pH < 5.8. Acetate concentration tended to be greater in steers with pathology than without pathology. Serum amyloid A was greater and haptoglobin tended to be greater in steers with pathology than those without. Overall, liver and rumen pathology was associated with a greater duration that ruminal pH is < 5.2 and a chronic systemic acute phase protein response. In summary, feedlot cattle experience low RRpH during dietary transition and that the risk increases with increasing levels of concentrate. However, during the dietary transition the extent of low RRpH was mild. During the last 5 wk of finishing, the duration that ruminal pH was < 5.2 and the plasma concentration of serum amyloid A, were associated with greater rumen and liver pathology scores, suggesting that low ruminal pH occurring during the latter part of finishing may have an impact on risk for rumenitis and liver abscesses. Advisors/Committee Members: Penner, Greg B, Campbell, John G, Jelinski, Murray, Hendrick, Steve, McKinnon, John J, Timsit, Eduoard, Harding, John.

Subjects/Keywords: acidosis; ruminal pH; feedlot cattle; liver abscess; acute phase protein

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Wiese, B. I. 1. (2017). DEFINING THE RISK, PREVALENCE, AND PATHOLOGICAL THRESOLD OF LOW RUMINAL pH IN FEELOT CATTLE. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/7770

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Wiese, Brittany I 1988-. “DEFINING THE RISK, PREVALENCE, AND PATHOLOGICAL THRESOLD OF LOW RUMINAL pH IN FEELOT CATTLE.” 2017. Thesis, University of Saskatchewan. Accessed January 21, 2021. http://hdl.handle.net/10388/7770.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Wiese, Brittany I 1988-. “DEFINING THE RISK, PREVALENCE, AND PATHOLOGICAL THRESOLD OF LOW RUMINAL pH IN FEELOT CATTLE.” 2017. Web. 21 Jan 2021.

Vancouver:

Wiese BI1. DEFINING THE RISK, PREVALENCE, AND PATHOLOGICAL THRESOLD OF LOW RUMINAL pH IN FEELOT CATTLE. [Internet] [Thesis]. University of Saskatchewan; 2017. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/10388/7770.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Wiese BI1. DEFINING THE RISK, PREVALENCE, AND PATHOLOGICAL THRESOLD OF LOW RUMINAL pH IN FEELOT CATTLE. [Thesis]. University of Saskatchewan; 2017. Available from: http://hdl.handle.net/10388/7770

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

24. Good, Adriane Catherine 1993-. EVALUATION OF CANOLA MEAL VERSUS SOYBEAN MEAL AS A PROTEIN SUPPLEMENT FOR BEEF CATTLE: EFFECTS ON GROWTH PERFORMANCE, CARCASS CHARACTERISTICS, RUMEN FERMENTATION, AND NUTRIENT DIGESTION.

Degree: 2018, University of Saskatchewan

URL: http://hdl.handle.net/10388/8529

► The objective of this research was to determine the effect of canola meal (CM) as a protein supplement for beef cattle on growth performance, rumen… (more)

▼ The objective of this research was to determine the effect of canola meal (CM) as a protein supplement for beef cattle on growth performance, rumen fermentation, and nutrient digestion compared to soybean meal (SBM) and wheat dried distillers’ grains with solubles (WDDGS). A 95-d backgrounding trial (Trial 1) and a 61-d backgrounding, 147-d finishing trial (Trial 2) were used to evaluate performance and carcass characteristics of feedlot cattle fed CM vs. SBM with or without WDDGS. In Trial 1, cattle fed SBM had greater ADG (P < 0.05) relative to cattle fed SBM+WDDGS but also numerically the highest feed cost of gain compared to the other three treatments. No other treatment differences were noted in Trial 1. In Trial 2, no treatment differences (P > 0.05) were detected for overall ADG, DMI, or gain : feed. Numerically, cattle fed SBM had the highest feed cost of gain with cattle fed WDDGS the lowest. Cattle fed SBM+WDDGS had the poorest fat deposition (P < 0.05) compared to cattle fed CM+WDDGS and WDDGS. However, no treatment differences were noted in final carcass value. A third trial using omasal, rumen, and fecal collections in heifers fed CM or SBM with or without WDDGS in a 4 x 4 Latin square was carried out to determine the effect of protein supplement on rumen fermentation, apparent and true ruminal nutrient digestibility, and total tract nutrient digestibility. Heifers fed WDDGS had lower (P < 0.05) DM, OM, and N intake than those not fed WDDGS. Heifers fed CM had the highest (P < 0.05) DM, OM, and N apparently and truly digested in the rumen compared to heifers fed SBM, and inclusion of WDDGS tended (P < 0.10) to decrease N truly digested in the rumen. There were no treatment differences (P > 0.05) noted in DM, OM, CP, ADF, or NDF digestibility. The results of all three trials indicate that CM is not different than SBM as protein supplement for feedlot cattle and that the inclusion of WDDGS did not improve feedlot performance, rumen fermentation, or nutrient digestibility. Advisors/Committee Members: McKinnon, John J, Campbell, John R, Penner, Greg B, McAllister, Tim A, Mutsvangwa, Tim, Buchanan, Fiona C.

Subjects/Keywords: canola meal; wheat dried distillers' grains with solubles; soybean meal; beef cattle

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Good, A. C. 1. (2018). EVALUATION OF CANOLA MEAL VERSUS SOYBEAN MEAL AS A PROTEIN SUPPLEMENT FOR BEEF CATTLE: EFFECTS ON GROWTH PERFORMANCE, CARCASS CHARACTERISTICS, RUMEN FERMENTATION, AND NUTRIENT DIGESTION. (Thesis). University of Saskatchewan. Retrieved from http://hdl.handle.net/10388/8529

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Good, Adriane Catherine 1993-. “EVALUATION OF CANOLA MEAL VERSUS SOYBEAN MEAL AS A PROTEIN SUPPLEMENT FOR BEEF CATTLE: EFFECTS ON GROWTH PERFORMANCE, CARCASS CHARACTERISTICS, RUMEN FERMENTATION, AND NUTRIENT DIGESTION.” 2018. Thesis, University of Saskatchewan. Accessed January 21, 2021. http://hdl.handle.net/10388/8529.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Good, Adriane Catherine 1993-. “EVALUATION OF CANOLA MEAL VERSUS SOYBEAN MEAL AS A PROTEIN SUPPLEMENT FOR BEEF CATTLE: EFFECTS ON GROWTH PERFORMANCE, CARCASS CHARACTERISTICS, RUMEN FERMENTATION, AND NUTRIENT DIGESTION.” 2018. Web. 21 Jan 2021.

Vancouver:

Good AC1. EVALUATION OF CANOLA MEAL VERSUS SOYBEAN MEAL AS A PROTEIN SUPPLEMENT FOR BEEF CATTLE: EFFECTS ON GROWTH PERFORMANCE, CARCASS CHARACTERISTICS, RUMEN FERMENTATION, AND NUTRIENT DIGESTION. [Internet] [Thesis]. University of Saskatchewan; 2018. [cited 2021 Jan 21]. Available from: http://hdl.handle.net/10388/8529.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Good AC1. EVALUATION OF CANOLA MEAL VERSUS SOYBEAN MEAL AS A PROTEIN SUPPLEMENT FOR BEEF CATTLE: EFFECTS ON GROWTH PERFORMANCE, CARCASS CHARACTERISTICS, RUMEN FERMENTATION, AND NUTRIENT DIGESTION. [Thesis]. University of Saskatchewan; 2018. Available from: http://hdl.handle.net/10388/8529

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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