+publisher:"Colorado State University" +contributor:("Peel, Kraig")

1. Linton, Kathryn. Evaluation of roughage inclusion rate within a total mixed ration effects on feedlot performance, carcass characteristics, and fatty acid composition of subcutaneous adipose, intramuscular adipose, and muscle tissue of Wagyu cattle.

Degree: MS(M.S.), Animal Sciences, 2015, Colorado State University

URL: http://hdl.handle.net/10217/170297

► The objective of this study was to investigate the effect of roughage inclusion rate of 10, 20, and 30% within a total mixed ration on… (more)

▼ The objective of this study was to investigate the effect of roughage inclusion rate of 10, 20, and 30% within a total mixed ration on feedlot performance, carcass composition and marbling distribution in Wagyu cattle (n=41). Upon arrival, cattle were acclimated to bunk style feeding. Initial body weights were collected. Animals were blocked by sex and weight to be assigned to 1 of 3 roughage inclusion rate treatments. Treatments included 1) 10% roughage inclusion on dry matter basis; 2) 20% roughage inclusion and 3) 30% roughage inclusion on dry matter basis. Diets were formulated to be isoenergentic, isonitrogenous, and isoamylolytic. Animals were weighed every 7d. For harvest animals were transported to a commercial abattoir. Hot carcass weight (HCW) was determined at time of harvest, intramuscular adipose, and subcutaneous adipose tissue was collected at harvest and snap frozen for analysis of FA composition. Longissimus muscle area (LMA) and backfat (BF) carcass measurements were determined after 21d storage at 0° C chill. A 1.25 cm cross section of longissimus dorsi at 12th and 13th rib interface was collected for Computer Vision System Ribeye Camera evaluation of marbling distribution. Limited treatment effects were observed. Feedlot performance and carcass characteristics were not significantly affected by roughage inclusion rate (P>0.05). Treatment presented a significant effect on Linoleic acid (C18:3) concentration within the longissimus muscle tissue (P=0.05). Concentration of C18:3 increased with increased roughage inclusion rate. Fatty acid profiles for LM, IMF and SQ tissues were similar across treatments. There was not treatment effect for marbling distribution collected via Computer Vision System Ribeye Camera evaluation. Overall, the data suggests that roughage inclusion rate causes very little impact on feedlot performance, carcass characteristics, fatty acid composition and marbling distribution in Wagyu cattle. Advisors/Committee Members: Peel, Kraig (advisor), Archibeque, Shawn (committee member), Holt, Timothy (committee member).

Subjects/Keywords: fatty acid composition; feedlot performance; marbling distribution; roughage inclusion; Wagyu

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APA (6^th Edition):

Linton, K. (2015). Evaluation of roughage inclusion rate within a total mixed ration effects on feedlot performance, carcass characteristics, and fatty acid composition of subcutaneous adipose, intramuscular adipose, and muscle tissue of Wagyu cattle. (Masters Thesis). Colorado State University. Retrieved from http://hdl.handle.net/10217/170297

Chicago Manual of Style (16^th Edition):

Linton, Kathryn. “Evaluation of roughage inclusion rate within a total mixed ration effects on feedlot performance, carcass characteristics, and fatty acid composition of subcutaneous adipose, intramuscular adipose, and muscle tissue of Wagyu cattle.” 2015. Masters Thesis, Colorado State University. Accessed April 22, 2021. http://hdl.handle.net/10217/170297.

MLA Handbook (7^th Edition):

Linton, Kathryn. “Evaluation of roughage inclusion rate within a total mixed ration effects on feedlot performance, carcass characteristics, and fatty acid composition of subcutaneous adipose, intramuscular adipose, and muscle tissue of Wagyu cattle.” 2015. Web. 22 Apr 2021.

Vancouver:

Linton K. Evaluation of roughage inclusion rate within a total mixed ration effects on feedlot performance, carcass characteristics, and fatty acid composition of subcutaneous adipose, intramuscular adipose, and muscle tissue of Wagyu cattle. [Internet] [Masters thesis]. Colorado State University; 2015. [cited 2021 Apr 22]. Available from: http://hdl.handle.net/10217/170297.

Council of Science Editors:

Linton K. Evaluation of roughage inclusion rate within a total mixed ration effects on feedlot performance, carcass characteristics, and fatty acid composition of subcutaneous adipose, intramuscular adipose, and muscle tissue of Wagyu cattle. [Masters Thesis]. Colorado State University; 2015. Available from: http://hdl.handle.net/10217/170297

Colorado State University

2. Markwood, Matthew. Effect of delaying time of AI based on Estrotect patch status on pregnancy rates of beef heifers and nursing beef cows.

Degree: MS(M.S.), Animal Sciences, 2015, Colorado State University

URL: http://hdl.handle.net/10217/167051

► Four studies were conducted to evaluate the efficacy of a delayed timed AI (TAI) protocol. The objective was to evaluate the use of Estrotect patch… (more)

▼ Four studies were conducted to evaluate the efficacy of a delayed timed AI (TAI) protocol. The objective was to evaluate the use of Estrotect patch status to determine optimum TAI implementation. Experiment 1 was conducted with, 997 cows across 6 locations were administered a 7-d CO-Synch + controlled internal drug release (CIDR) estrous synchronization protocol. The experimental design was a 2 x 2 factorial; factors were patch status at 58 h post PGF2α injection (activated or inactivated) and time interval from PGF2α to TAI (58 or 76 h). Patch status was characterized at 58 h post PGF2α into 4 scores: 1 = 0% activated, 2 = 50% activated, 3 = 100% activated, and 4 = missing. Females with a patch status of 3 were considered to be activated and females with patch status of a 1 or 2 were considered to be not activated. Females with missing patches were removed. There was no treatment x location interaction for pregnancy rate (P = 0.96), so data were pooled across locations. There was a tendency (P = 0.07) for an interaction between the main effects for pregnancy rate. Pregnancy rate was greater (P < 0.01) in cows with activated patches at 58 h post PGF2α (67.0%) compared to those with inactivated patches (51.1%). There was no difference (P = 0.99) for pregnancy rate when comparing the 58 (59.9%) vs. 76 h PGF2α to TAI interval (58.7%). Pregnancy rates for cows with a patch status of 3 at 58 h post PGF2α were greater (P < 0.05) than cows with a patch status of 1 or 4 and tended (P = 0.09) to be greater than cows with a patch status of 2. Cows with a patch status of 1 tended (P = 0.06) to have increased pregnancy rates by delaying TAI to 76 h post PGF2α. Although, it was not different (P = 0.13), there was a 7.4 percentage point increase in pregnancy rates for cows with inactivated patches that received TAI at 76 vs. 58 h. Experiment 2 was conducted to evaluate delayed TAI on 1,682 heifers across 3 locations. The objective was to evaluate the use of Estrotect patch status at various recommended and delayed insemination times for a TAI protocol. Experiment 2a was implemented with 1,159 Bos taurus heifers synchronized using a 14 d melengestrol acetate (MGA) – PGF2α protocol. Estrotect patches were applied at the time of PGF2α injection and evaluated at the time of insemination. Heifers were subsequently assigned to 5 treatments: 1) recommended 72 h post PGF2α TAI with activated patches, 2) recommended 72 h post PGF2α TAI with inactivated patches, 3) 12 h delayed TAI with inactivated patches, 4)18 h delayed TAI with inactivated patches, and 5) heifers with missing patches. Experiment 2b was conducted with 449 Bos taurus heifers synchronized using a 14 d MGA – PGF2α protocol. Heifers were divided into 3 treatments: 1) recommended 72 h post PGF2α TAI with activated patches, 2) recommended 72 h post PGF2α TAI with inactivated patches, and 3) an 8 h delayed TAI with inactivated patches. Experiment 2c utilized 74 heifers synchronized with a 7-d CO-Synch plus CIDR protocol. All heifers had Estrotect patches… Advisors/Committee Members: Peel, Kraig (advisor), Ahola, Jason (advisor), Whittier, Jack (committee member), Hadrich, Joleen (committee member).

Subjects/Keywords: delayed insemination; timed artificial insemination; estrus detection aid; beef cattle

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APA (6^th Edition):

Markwood, M. (2015). Effect of delaying time of AI based on Estrotect patch status on pregnancy rates of beef heifers and nursing beef cows. (Masters Thesis). Colorado State University. Retrieved from http://hdl.handle.net/10217/167051

Chicago Manual of Style (16^th Edition):

Markwood, Matthew. “Effect of delaying time of AI based on Estrotect patch status on pregnancy rates of beef heifers and nursing beef cows.” 2015. Masters Thesis, Colorado State University. Accessed April 22, 2021. http://hdl.handle.net/10217/167051.

MLA Handbook (7^th Edition):

Markwood, Matthew. “Effect of delaying time of AI based on Estrotect patch status on pregnancy rates of beef heifers and nursing beef cows.” 2015. Web. 22 Apr 2021.

Vancouver:

Markwood M. Effect of delaying time of AI based on Estrotect patch status on pregnancy rates of beef heifers and nursing beef cows. [Internet] [Masters thesis]. Colorado State University; 2015. [cited 2021 Apr 22]. Available from: http://hdl.handle.net/10217/167051.

Council of Science Editors:

Markwood M. Effect of delaying time of AI based on Estrotect patch status on pregnancy rates of beef heifers and nursing beef cows. [Masters Thesis]. Colorado State University; 2015. Available from: http://hdl.handle.net/10217/167051

Colorado State University

3. French, Jesse. Evaluation of pregnancy rates following timed AI in beef heifers after synchronization of follicular waves using a 14-d controlled internal drug release insert, and the lifetime productivity of beef heifers conceiving to, or sired by, AI.

Degree: MS(M.S.), Animal Sciences, 2012, Colorado State University

URL: http://hdl.handle.net/10217/65341

► Three studies were conducted to evaluate the efficacy of a timed AI (TAI) estrous synchronization protocol that used a 14-d controlled internal drug release (CIDR)… (more)

▼ Three studies were conducted to evaluate the efficacy of a timed AI (TAI) estrous synchronization protocol that used a 14-d controlled internal drug release (CIDR) insert and a GnRH injection on d 9 to force ovulation of potentially persistent follicles and induce a second wave of follicle growth. In the first study 710 yearling heifers across 4 locations were assigned to 1 of 3 treatments: 1) 14-d GnRH-9 heifers (n = 242) received CIDR (1.38 g progesterone) and 100 μg GnRH on d 0, 100 μg GnRH on d 9, and 50 mg PGF2α on d 14 concurrent with CIDR removal, 2) 14-d 6 h PG heifers (n = 233) were identical to 14-d GnRH-9 except that on d 14, 2 25 mg injections of PGF2α were given 6 h apart, and 3) 5-d CO-Synch + CIDR heifers (n = 235) received 100 μg GnRH and CIDR on d 9 and a single 25 mg PGF2α at CIDR removal. All 3 treatments received 100 μg GnRH with TAI at 72 ± 2 h after CIDR removal. The 14-d GnRH-9 TAI pregnancy rate (54.5%) did not differ (P = 0.57) from the 14-d 6h PG TAI pregnancy rate (53.6%). The TAI pregnancy rate of 14-d protocols combined was 54.1%, and was not different (P = 0.20) from the 5-d CO-Synch + CIDR TAI pregnancy rate of 46.4%. The following year 319 yearling heifers across 4 locations were assigned to 1 of 3 treatments: 1) 14-d GnRH-9 (n = 107; as described earlier), 2) 14-d PG (n = 107) was identical to 14-d GnRH-9 except instead of receiving GnRH on d 0 they received 25 mg of PGF2α and, 3) 5-d CO-Synch + CIDR (n = 104; as described earlier). All treatments received 100 μg GnRH at TAI 72 ± 2 h after CIDR removal. Heifers' ovaries (n = 120) were ultrasounded at 2 locations on d 0, 9, 14, and 17 of the estrous synchronization protocol to determine ovarian structures and response. The 14-d GnRH-9 TAI pregnancy rate (52.3%) was not different (P = 0.82) than 14-d PG (47.6%), nor was the TAI pregnancy rate of both 14-d treatments combined (50.0%) different (P = 0.66) from 5-d CO-Synch + CIDR (47.1%). Based on ultrasonography, the 14-d GnRH-9 treatment induced a second wave of follicular growth in 25.9% of heifers while 14-d PG heifers had larger (P = 0.01) follicle size on d 9 but did not reduce (P > 0.10) corpora lutea at TAI compared to 14-d GnRH-9 or 5-d CO-Synch + CIDR. That same year 453 heifers at another location were assigned to 1 of 3 treatments: 1) 14-d GnRH-9 (n = 150; as described earlier), 2) 14-d GnRH-7 (n = 150) received 100 μg GnRH and CIDR on d 0, 100 μg GnRH on d 7, 25 mg PGF2α on d 14 at CIDR removal, and 100 μg GnRH at TAI 63 ± 3 h after CIDR removal, and 3) 7-d CO-Synch + CIDR received 100 μg GnRH and CIDR on d 7, 25 mg PGF2α at CIDR removal, and 100 μg GnRH at TAI 63 ± 3 h after CIDR removal. Pregnancy rate to TAI of 14-d GnRH-9 (51.3%) was not different (P = 0.75) than 14-d GnRH-7 treatment (48.0%), nor was the TAI pregnancy rate of both 14-d treatments (49.6%) different (P = 0.83) from 7-d CO-Synch + CIDR (48.6%). These data indicate that the 14-d CIDR estrous synchronization protocol with d 9 GnRH produces comparable pregnancy rates to TAI compared to the industry utilized… Advisors/Committee Members: Peel, Kraig (advisor), Holt, Timothy (committee member), Ahola, Jason (committee member), Whittier, Jack (committee member).

Subjects/Keywords: artificial insemination; heifers; follicular waves; estrous synchronization

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APA (6^th Edition):

French, J. (2012). Evaluation of pregnancy rates following timed AI in beef heifers after synchronization of follicular waves using a 14-d controlled internal drug release insert, and the lifetime productivity of beef heifers conceiving to, or sired by, AI. (Masters Thesis). Colorado State University. Retrieved from http://hdl.handle.net/10217/65341

Chicago Manual of Style (16^th Edition):

French, Jesse. “Evaluation of pregnancy rates following timed AI in beef heifers after synchronization of follicular waves using a 14-d controlled internal drug release insert, and the lifetime productivity of beef heifers conceiving to, or sired by, AI.” 2012. Masters Thesis, Colorado State University. Accessed April 22, 2021. http://hdl.handle.net/10217/65341.

MLA Handbook (7^th Edition):

French, Jesse. “Evaluation of pregnancy rates following timed AI in beef heifers after synchronization of follicular waves using a 14-d controlled internal drug release insert, and the lifetime productivity of beef heifers conceiving to, or sired by, AI.” 2012. Web. 22 Apr 2021.

Vancouver:

French J. Evaluation of pregnancy rates following timed AI in beef heifers after synchronization of follicular waves using a 14-d controlled internal drug release insert, and the lifetime productivity of beef heifers conceiving to, or sired by, AI. [Internet] [Masters thesis]. Colorado State University; 2012. [cited 2021 Apr 22]. Available from: http://hdl.handle.net/10217/65341.

Council of Science Editors:

French J. Evaluation of pregnancy rates following timed AI in beef heifers after synchronization of follicular waves using a 14-d controlled internal drug release insert, and the lifetime productivity of beef heifers conceiving to, or sired by, AI. [Masters Thesis]. Colorado State University; 2012. Available from: http://hdl.handle.net/10217/65341

Colorado State University

4. Fischer, Mariah. Effects of monensin sodium, plant extracts and injectable trace minerals on feedlot performance, fertility and morbidity of beef cattle.

Degree: MS(M.S.), Animal Sciences, 2015, Colorado State University

URL: http://hdl.handle.net/10217/170380

► Two studies were conducted to evaluate the effects monensin sodium, plant extracts, and injectable trace minerals on heifer and bull fertility, and calf feedlot performance… (more)

▼ Two studies were conducted to evaluate the effects monensin sodium, plant extracts, and injectable trace minerals on heifer and bull fertility, and calf feedlot performance and morbidity. In the first study, Angus heifers (n = 107; 259.3 ± 21.0 d of age), blocked by weaning BW (262.7 ± 29.9 kg; d -19), were randomly assigned to treatments in a 2 x 2 factorial design, where all heifers received the same basal ration consisting of a 30% CP liquid supplement containing 200 mg/0.45 kg monensin sodium. Treatments were applied daily to the basal ration as topdressed supplements and were fed at a rate of 0.32 kg•hd-1•d-1. Treatments were as follows: 1) high level of monensin sodium (MON), where monensin sodium was topdressed at 200 mg•hd-1•d-1, 2) low level of monensin sodium plus the plant extracts cinnamaldehyde, capsicum oleoresin and eugenol (CCE), where plant extracts were topdressed at 11,000 mg•hd-1•d-1, 3) control (CON), low level of monensin sodium without topdressed supplements, or 4) high levels of monensin sodium with plant extracts (COMB), where monensin sodium was topdressed at 200 mg•hd-1•d-1 and plant extracts were topdressed at 11,000 mg•hd-1•d-1. In both studies, heifers were weighed and estrus detection patch status was recorded every 11 d. Age at puberty was determined by patch status and was recorded as the d the patch was first activated. A 14 d CIDR-PG-AI protocol was utilized to inseminate heifers, when heifers were 427.3 ± 21.0 d of age. In the 14 d CIDR-PG-AI, a controlled internal drug release device (CIDR) was inserted 33 d prior to AI and removed 14 d later. Prostaglandin was injected 16 d after CIDR removal, and heifers were inseminated 3 d later. Heifers were placed with bulls for natural service 21 d post AI. Pregnancy was determined 56 d post AI via ultrasound and 178 d post AI via rectal palpation. Calving records were used to validate ultrasound results. In the first study, there were no treatment main effects for initial or final BW (P > 0.05). There were no interactions between the main effects of monensin sodium fed at high concentrations and plant extracts for any feedlot or fertility performance variable (P > 0.05); however, there was a main effect of high levels of monensin sodium for heifer DMI from d 0 to 8 and d 8 to 15, where MON and COMB heifers had reduced DMI compared to CCE and CON heifers (P = 0.05). From d 11 to 22 and d 44 to 66, heifers that received plant extracts (CCE and COMB) had lower ADG than CON and MON heifers (P = 0.05). Feed efficiency tended (P = 0.08) to be improved in heifers fed high levels of monensin sodium (MON and COMB) compared to heifers fed low levels of monensin sodium (CCE and CON); however overall DMI, ADG, age at puberty and pregnancy rate were not affected by the main effects of high levels of monensin sodium or plant extracts (P > 0.05). In the second study, Angus bulls (n = 31, yr 1; n = 35, yr 2), heifers (n = 107) and steers (n = 105) were randomly assigned a treatment at weaning (278.6 ± 35.0 kg; 241.0 ± 19.6 d): 1) control (CON),… Advisors/Committee Members: Ahola, Jason (advisor), Peel, Kraig (advisor), Seidel, George (committee member), Engle, Terry (committee member).

Subjects/Keywords: ADG; beef cattle; fertility; monensin sodium; plant extracts; trace minerals

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

APA (6^th Edition):

Fischer, M. (2015). Effects of monensin sodium, plant extracts and injectable trace minerals on feedlot performance, fertility and morbidity of beef cattle. (Masters Thesis). Colorado State University. Retrieved from http://hdl.handle.net/10217/170380

Chicago Manual of Style (16^th Edition):

Fischer, Mariah. “Effects of monensin sodium, plant extracts and injectable trace minerals on feedlot performance, fertility and morbidity of beef cattle.” 2015. Masters Thesis, Colorado State University. Accessed April 22, 2021. http://hdl.handle.net/10217/170380.

MLA Handbook (7^th Edition):

Fischer, Mariah. “Effects of monensin sodium, plant extracts and injectable trace minerals on feedlot performance, fertility and morbidity of beef cattle.” 2015. Web. 22 Apr 2021.

Vancouver:

Fischer M. Effects of monensin sodium, plant extracts and injectable trace minerals on feedlot performance, fertility and morbidity of beef cattle. [Internet] [Masters thesis]. Colorado State University; 2015. [cited 2021 Apr 22]. Available from: http://hdl.handle.net/10217/170380.

Council of Science Editors:

Fischer M. Effects of monensin sodium, plant extracts and injectable trace minerals on feedlot performance, fertility and morbidity of beef cattle. [Masters Thesis]. Colorado State University; 2015. Available from: http://hdl.handle.net/10217/170380

Colorado State University

5. Cozzens, Tyler William. Essays in the economic implications of select animal health and crop production issues.

Degree: PhD, Agricultural and Resource Economics, 2015, Colorado State University

URL: http://hdl.handle.net/10217/167212

► Production agriculture is faced with many risks which may be difficult to manage and can result in significant negative economic impacts. For the individual farmer,… (more)

▼ Production agriculture is faced with many risks which may be difficult to manage and can result in significant negative economic impacts. For the individual farmer, this can be problematic and potentially poses a challenge to remain viable and profitable when faced with uncertain circumstances. Economic matters evaluated in this dissertation include the topics of animal health and crop production efficiency both focusing on improving production agriculture. This dissertation is comprised of three separate essays or three individual chapters. The first chapter contains an essay on a growing global threat to human health and safety and the biosecurity of livestock production in the United States in the form of antimicrobial resistant pathogens. An equilibrium displacement model (EDM) of the U.S. meat industry (i.e., beef, pork, lamb and poultry) is used to analyze welfare implications occurring from the potential restriction on the use of antimicrobial technologies or the implementation of biosecurity measures at the slaughter (i.e., feedlot) level of beef cattle production. Producer and consumer surplus measures showed that the beef industry losses the most from a reduction on the use of antimicrobial technology in beef cattle production in both the short- and long-run. An 11.95% industry adoption of a wildlife population management (WPM) program on livestock facilities cause a gain in producer surplus of 1.15 billion in the short-run with long-run gains of 18.33 million for the meat industry. The second essay assesses the impact of various biosecurity strategies to prevent the incursion of bovine viral diarrhea virus (BVDV) in a cow-calf herd and minimize the uncertain financial impacts. The specific objectives of this study are to estimate the impact of BVDV introduction to representative U.S. cow-calf operations using an epidemiological disease spread model and to estimate annual costs of BVDV in cow-calf herds. Epidemiological results will be used to evaluate the expected returns and risk for various BVDV biosecurity measures in U.S. cow-calf herds by using a linear programming model which incorporates risk. Results from the study show that, in the context of whole farm planning, vaccination, testing or a combination of both can be effective biosecurity measures to control BVDV. In all five regions, biosecurity strategy M (no biosecurity control measures) generate the highest expected returns which could be a result of no biosecurity costs. Expected returns by each biosecurity strategy shows that N (vaccination of breeding stock) generates the highest expected return for the Southern Plains (SP), North Central (NC), and West (W) regions. Biosecurity strategy T (testing for BVDV) had the highest expected returns for the Northern Plains (NP) and Southeast (SE) regions. The information from this essay is useful to the cow-calf industry as impacts and costs from various biosecurity measures are provided. The third essay estimates and analyzes efficiency measures of conventional and organic crop producers. The… Advisors/Committee Members: Pendell, Dustin (advisor), Shwiff, Stephanie (committee member), Dalsted, Norman (committee member), Peel, Kraig (committee member).

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APA (6^th Edition):

Cozzens, T. W. (2015). Essays in the economic implications of select animal health and crop production issues. (Doctoral Dissertation). Colorado State University. Retrieved from http://hdl.handle.net/10217/167212

Chicago Manual of Style (16^th Edition):

Cozzens, Tyler William. “Essays in the economic implications of select animal health and crop production issues.” 2015. Doctoral Dissertation, Colorado State University. Accessed April 22, 2021. http://hdl.handle.net/10217/167212.

MLA Handbook (7^th Edition):

Cozzens, Tyler William. “Essays in the economic implications of select animal health and crop production issues.” 2015. Web. 22 Apr 2021.

Vancouver:

Cozzens TW. Essays in the economic implications of select animal health and crop production issues. [Internet] [Doctoral dissertation]. Colorado State University; 2015. [cited 2021 Apr 22]. Available from: http://hdl.handle.net/10217/167212.

Council of Science Editors:

Cozzens TW. Essays in the economic implications of select animal health and crop production issues. [Doctoral Dissertation]. Colorado State University; 2015. Available from: http://hdl.handle.net/10217/167212

Colorado State University

6. Giles, Ryan. Synchronizing follicular waves using 14 day CIDR insert protocols in beef cows and assessing reticulo-rumen temperature changes for detection of ovulation in dairy cows.

Degree: MS(M.S.), Animal Sciences, 2012, Colorado State University

URL: http://hdl.handle.net/10217/68105

► In the first experiment, objectives were to determine the effectiveness of an extended controlled internal drug release (CIDR) insert estrus synchronization protocol to produce 2… (more)

▼ In the first experiment, objectives were to determine the effectiveness of an extended controlled internal drug release (CIDR) insert estrus synchronization protocol to produce 2 follicular waves, induce cyclicity in anestrus cows, and evaluate the efficacy of a single 50 mg dose of prostaglandin F2α (PG) at CIDR removal. This experiment included 779 primiparous and multiparous lactating beef cows at 3 locations (n = 779) that were randomly assigned to 1 of 3 treatments. Cows in the 14-d 50 PG treatment received a CIDR (1.38 g progesterone) with 100 μg GnRH analogue im on d 0, 100 μg GnRH analogue im on d 9, and CIDR removal with 50 mg PG im on d 14. Cows in the 14-d 6 h PG treatment were assigned the same protocol as the 14-d 50 PG treatment except that 25 mg PG im was given on d 14, plus 25 mg PG im 6 ± 1 h later. Cows in the 5-day CO-Synch + CIDR (5-d CO-Synch) treatment, received a CIDR with 100 μg GnRH analogue im on d 9, CIDR removal with 25 mg PG im on d 14, and 25 mg PG im 6 ± 1 h after first PG injection. Cows in all treatments received 100 μg GnRH analogue im with TAI 72 ± 3 h after CIDR removal. Pregnancy status to TAI was determined by ultrasonography 37 to 40 d after TAI. Pregnancy rate to TAI was higher (P < 0.05) in 14-d 50 PG treatment than 14-d 6 h PG and 5-d CO-Synch treatments. In the following year, 2 experiments were conducted at 6 locations. Our objectives were to: 1) determine the efficacy of an extended CIDR protocol with 2 induced follicular waves, and 2) determine the ability of initiating the CIDR protocol with GnRH analogue (Factrel) or PG. In exp. one, 588 primiparous and multiparous lactating beef cows at 2 locations were randomly assigned to 1 of 3 treatments. Cows in the 14-d GnRH-9 treatment (n = 202) received the same treatment as the 14-d 50 PG as described earlier. Cows in the 14-d GnRH-7 treatment received a CIDR insert and 100 μg GnRH analogue im on d 0, 100 μg GnRH analogue im on d 7, and CIDR removal with 25 mg PG im on d 14. Cows in the 7-day CO-Synch + CIDR (7-d CO-Synch) treatment, received a CIDR insert and 100 μg GnRH analogue im on d 7, and CIDR removal concurrent with 25 mg PG im on d 14. Cows in all treatments received 100 μg GnRH analogue im with TAI at either 72 ± 3 h (14-d GnRH-9 treatment) or 63 ± 3 h (14-d GnRH-7 and 7-d CO-Synch treatments). Combined across all locations, pregnancy rates to TAI were not different (P > 0.05) between 14-d GnRH-9 (54.8%), 14-d GnRH-7 (54.4%), and 7-d CO-Synch (52.3%) treatments. In exp. two, 625 primiparous and multiparous lactating beef cows across 4 locations were randomly assigned to 1 of 3 treatments. Cows in the 14-d GnRH treatment (n = 205) received the same treatment as the 14-d 50 PG treatment described earlier. Cows in the 14-d PG treatment (n = 214) received the same treatment as 14-d GnRH cows except that 25 mg PG im was given on d 0 instead of GnRH analogue. Cows in the 5-day CO-Synch treatment (n = 206), received the same treatment as described previously. Cows in all treatments received 100 μg GnRH analogue im with… Advisors/Committee Members: Peel, Kraig (advisor), Whittier, Jack (advisor), Seidel, George (committee member), Ahola, Jason (committee member).

Subjects/Keywords: beef cows; CIDR; dairy cows; estrus synchronization; reticulo-rumen temperature

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APA (6^th Edition):

Giles, R. (2012). Synchronizing follicular waves using 14 day CIDR insert protocols in beef cows and assessing reticulo-rumen temperature changes for detection of ovulation in dairy cows. (Masters Thesis). Colorado State University. Retrieved from http://hdl.handle.net/10217/68105

Chicago Manual of Style (16^th Edition):

Giles, Ryan. “Synchronizing follicular waves using 14 day CIDR insert protocols in beef cows and assessing reticulo-rumen temperature changes for detection of ovulation in dairy cows.” 2012. Masters Thesis, Colorado State University. Accessed April 22, 2021. http://hdl.handle.net/10217/68105.

MLA Handbook (7^th Edition):

Giles, Ryan. “Synchronizing follicular waves using 14 day CIDR insert protocols in beef cows and assessing reticulo-rumen temperature changes for detection of ovulation in dairy cows.” 2012. Web. 22 Apr 2021.

Vancouver:

Giles R. Synchronizing follicular waves using 14 day CIDR insert protocols in beef cows and assessing reticulo-rumen temperature changes for detection of ovulation in dairy cows. [Internet] [Masters thesis]. Colorado State University; 2012. [cited 2021 Apr 22]. Available from: http://hdl.handle.net/10217/68105.

Council of Science Editors:

Giles R. Synchronizing follicular waves using 14 day CIDR insert protocols in beef cows and assessing reticulo-rumen temperature changes for detection of ovulation in dairy cows. [Masters Thesis]. Colorado State University; 2012. Available from: http://hdl.handle.net/10217/68105

Colorado State University

7. Battle, David C. Movement patterns, behavior, and habitat use of female moose on Joint Base Elmendorf-Richardson, AK.

Degree: MS(M.S.), Forest and Rangeland Stewardship, 2016, Colorado State University

URL: http://hdl.handle.net/10217/173501

► Joint Base Elmendorf-Richardson (JBER), which is a combined United States Army/Air Force installation, and neighboring Anchorage, Alaska, support a population of moose Alces alces (Linnaeus,… (more)

▼ Joint Base Elmendorf-Richardson (JBER), which is a combined United States Army/Air Force installation, and neighboring Anchorage, Alaska, support a population of moose Alces alces (Linnaeus, 1758) that inhabit a fragmented landscape of habitat types interspersed with human development. Because development plans in support of the military mission may have significant impacts on moose movement in the area, JBER and Alaska Department of Fish and Game (ADF&G) biologists began a study of moose habitat use and behavior on JBER. In order to help identify behaviors in wild radio-collared moose captured on JBER, we tested Telonics tri-axial accelerometers for accuracy in the detection of activity and the identification of behaviors in radio-collared moose. Direct observations of three captive animals fitted with radio collars containing accelerometers allowed us to calibrate activity readings to observed behaviors. We developed four datasets in order to test whether readings from this type of accelerometer could identify specific behaviors (browsing, grazing, walking, standing, lying), behavior categories (feeding, traveling, resting), or simply when moose were active or inactive. Multiple threshold criteria were tested in order to maximize correlation to observed behaviors. The highest overall accuracy was achieved when using threshold criteria to characterize behaviors as active (92.29% accuracy) or inactive (90.64% accuracy). A Fisher’s Exact Test indicated that there was no significant difference between observed behaviors and those correctly classified using threshold criteria for either active (p = .9728) or inactive (p = .9431) behaviors, indicating that our threshold criteria is correctly classifying these behaviors. In the next phase of this study, we collected 244,957 GPS locations from 18 female moose captured on JBER and fitted with GPS collars equipped with the same model tri-axial accelerometer used in the captive trials. Data from the accelerometers were used to characterize moose behavior as active or inactive. GPS locations, along with behavior patterns and movement characteristics, were used to rank JBER habitat types. Turning angle and speed were calculated between successive locations for each animal across the animal’s home range. Values were pooled for all animals and used to assess movement characteristics by season and habitat type. The highest velocity recorded for a 60 minute period was 1.50 m/s (5.40 kph), and 99.50% of all steps had velocities < 0.26 m/s (0.94 kph). Turning angle groups did not vary among either habitat types (p = 1.00) or seasons (p = 0.99). A new, intuitive home range estimation method, Dynamic Potential Path Area (dynPPA), was used to incorporate behavioral states into the delineation of animal home ranges. We delineated dynPPA home ranges by season for each moose, and used this technique in combination with Jacobs Index (which measures utilization in relation to availability) to determine habitat preference. Seasonal dynPPA home range sizes averaged 15.28 km2 in… Advisors/Committee Members: Rittenhouse, Larry (advisor), Farley, Sean (advisor), Meiman, Paul (committee member), Peel, Kraig (committee member).

Subjects/Keywords: alces; habitat use; moose; dynamic potential path area; Alaska; Jacob's Index

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APA (6^th Edition):

Battle, D. C. (2016). Movement patterns, behavior, and habitat use of female moose on Joint Base Elmendorf-Richardson, AK. (Masters Thesis). Colorado State University. Retrieved from http://hdl.handle.net/10217/173501

Chicago Manual of Style (16^th Edition):

Battle, David C. “Movement patterns, behavior, and habitat use of female moose on Joint Base Elmendorf-Richardson, AK.” 2016. Masters Thesis, Colorado State University. Accessed April 22, 2021. http://hdl.handle.net/10217/173501.

MLA Handbook (7^th Edition):

Battle, David C. “Movement patterns, behavior, and habitat use of female moose on Joint Base Elmendorf-Richardson, AK.” 2016. Web. 22 Apr 2021.

Vancouver:

Battle DC. Movement patterns, behavior, and habitat use of female moose on Joint Base Elmendorf-Richardson, AK. [Internet] [Masters thesis]. Colorado State University; 2016. [cited 2021 Apr 22]. Available from: http://hdl.handle.net/10217/173501.

Council of Science Editors:

Battle DC. Movement patterns, behavior, and habitat use of female moose on Joint Base Elmendorf-Richardson, AK. [Masters Thesis]. Colorado State University; 2016. Available from: http://hdl.handle.net/10217/173501

Colorado State University

8. Saad, Hamad M. A. Differential response from selection for low birth weight versus high calving ease in beef cattle.

Degree: PhD, Animal Sciences, 2015, Colorado State University

URL: http://hdl.handle.net/10217/170399

To view the abstract, please see the full text of the document. Advisors/Committee Members: Enns, Mark (advisor), Thomas, Milton (advisor), Peel, Kraig (committee member), Frasier, Marshall (committee member).

Subjects/Keywords: American Simmental beef cattle; birth weight; calving ease; model comparison; selection; threshold model

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APA (6^th Edition):

Saad, H. M. A. (2015). Differential response from selection for low birth weight versus high calving ease in beef cattle. (Doctoral Dissertation). Colorado State University. Retrieved from http://hdl.handle.net/10217/170399

Chicago Manual of Style (16^th Edition):

Saad, Hamad M A. “Differential response from selection for low birth weight versus high calving ease in beef cattle.” 2015. Doctoral Dissertation, Colorado State University. Accessed April 22, 2021. http://hdl.handle.net/10217/170399.

MLA Handbook (7^th Edition):

Saad, Hamad M A. “Differential response from selection for low birth weight versus high calving ease in beef cattle.” 2015. Web. 22 Apr 2021.

Vancouver:

Saad HMA. Differential response from selection for low birth weight versus high calving ease in beef cattle. [Internet] [Doctoral dissertation]. Colorado State University; 2015. [cited 2021 Apr 22]. Available from: http://hdl.handle.net/10217/170399.

Council of Science Editors:

Saad HMA. Differential response from selection for low birth weight versus high calving ease in beef cattle. [Doctoral Dissertation]. Colorado State University; 2015. Available from: http://hdl.handle.net/10217/170399

Colorado State University

9. Bigler, Bo. Effects of monensin sodium and plant extracts containing cinnamaldehyde, capsicum oleoresin, and eugenol on days to puberty, gain, pregnancy rate, and feed efficiency in developing beef heifers receiving a high roughage diet.

Degree: MS(M.S.), Animal Sciences, 2014, Colorado State University

URL: http://hdl.handle.net/10217/82544

To view the abstract, please see the full text of the document. Advisors/Committee Members: Peel, Kraig (advisor), Ahola, Jason (advisor), Whittier, Jack (committee member), Holt, Tim (committee member).

Subjects/Keywords: average daily gain; beef heifers; monensin; plant extracts; puberty

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APA (6^th Edition):

Bigler, B. (2014). Effects of monensin sodium and plant extracts containing cinnamaldehyde, capsicum oleoresin, and eugenol on days to puberty, gain, pregnancy rate, and feed efficiency in developing beef heifers receiving a high roughage diet. (Masters Thesis). Colorado State University. Retrieved from http://hdl.handle.net/10217/82544

Chicago Manual of Style (16^th Edition):

Bigler, Bo. “Effects of monensin sodium and plant extracts containing cinnamaldehyde, capsicum oleoresin, and eugenol on days to puberty, gain, pregnancy rate, and feed efficiency in developing beef heifers receiving a high roughage diet.” 2014. Masters Thesis, Colorado State University. Accessed April 22, 2021. http://hdl.handle.net/10217/82544.

MLA Handbook (7^th Edition):

Bigler, Bo. “Effects of monensin sodium and plant extracts containing cinnamaldehyde, capsicum oleoresin, and eugenol on days to puberty, gain, pregnancy rate, and feed efficiency in developing beef heifers receiving a high roughage diet.” 2014. Web. 22 Apr 2021.

Vancouver:

Bigler B. Effects of monensin sodium and plant extracts containing cinnamaldehyde, capsicum oleoresin, and eugenol on days to puberty, gain, pregnancy rate, and feed efficiency in developing beef heifers receiving a high roughage diet. [Internet] [Masters thesis]. Colorado State University; 2014. [cited 2021 Apr 22]. Available from: http://hdl.handle.net/10217/82544.

Council of Science Editors:

Bigler B. Effects of monensin sodium and plant extracts containing cinnamaldehyde, capsicum oleoresin, and eugenol on days to puberty, gain, pregnancy rate, and feed efficiency in developing beef heifers receiving a high roughage diet. [Masters Thesis]. Colorado State University; 2014. Available from: http://hdl.handle.net/10217/82544

Colorado State University

10. Powers, Jenny. Reproductive, behavioral, and first generational effects of gonadotropin releasing hormone vaccination in female Rocky Mountain elk (Cervus elaphus nelsoni).

Degree: PhD, Biomedical Sciences, 2011, Colorado State University

URL: http://hdl.handle.net/10217/48211

To view the abstract, please see the full text of the document. Advisors/Committee Members: Nett, Terry (advisor), Baker, Dan (advisor), Hansen, Thomas (committee member), Rhyan, Jack (committee member), Peel, Kraig (committee member).

Subjects/Keywords: fertility control; wildlife; immunocontraception; GnRH; elk

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

APA (6^th Edition):

Powers, J. (2011). Reproductive, behavioral, and first generational effects of gonadotropin releasing hormone vaccination in female Rocky Mountain elk (Cervus elaphus nelsoni). (Doctoral Dissertation). Colorado State University. Retrieved from http://hdl.handle.net/10217/48211

Chicago Manual of Style (16^th Edition):

Powers, Jenny. “Reproductive, behavioral, and first generational effects of gonadotropin releasing hormone vaccination in female Rocky Mountain elk (Cervus elaphus nelsoni).” 2011. Doctoral Dissertation, Colorado State University. Accessed April 22, 2021. http://hdl.handle.net/10217/48211.

MLA Handbook (7^th Edition):

Powers, Jenny. “Reproductive, behavioral, and first generational effects of gonadotropin releasing hormone vaccination in female Rocky Mountain elk (Cervus elaphus nelsoni).” 2011. Web. 22 Apr 2021.

Vancouver:

Powers J. Reproductive, behavioral, and first generational effects of gonadotropin releasing hormone vaccination in female Rocky Mountain elk (Cervus elaphus nelsoni). [Internet] [Doctoral dissertation]. Colorado State University; 2011. [cited 2021 Apr 22]. Available from: http://hdl.handle.net/10217/48211.

Council of Science Editors:

Powers J. Reproductive, behavioral, and first generational effects of gonadotropin releasing hormone vaccination in female Rocky Mountain elk (Cervus elaphus nelsoni). [Doctoral Dissertation]. Colorado State University; 2011. Available from: http://hdl.handle.net/10217/48211

Colorado State University

11. White, Boyd Winston. Validation of a geographic information system predictive habitat model for burrowing owls (Athene cunicularia) at US Army, Dugway Proving Ground.

Degree: MS(M.S.), Forest, Rangeland, and Watershed Stewardship, 2009, Colorado State University

URL: http://hdl.handle.net/10217/22103

► This study was designed to validate the use of Geological Information Systems (GIS) for creating a predictive habitat model that produces raster maps of acceptable… (more)

Subjects/Keywords: U.S. Army Dugway Proving Ground; DPG; burrowing owls; ATCU; habitat; geological information systems; GIS; Burrowing owl – Dugway Proving Ground (Utah); Habitat (Ecology) – Dugway Proving Ground (Utah); Geographic information systems – Dugway Proving Ground (Utah); Athene cunicularia

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

APA (6^th Edition):

White, B. W. (2009). Validation of a geographic information system predictive habitat model for burrowing owls (Athene cunicularia) at US Army, Dugway Proving Ground. (Masters Thesis). Colorado State University. Retrieved from http://hdl.handle.net/10217/22103

Chicago Manual of Style (16^th Edition):

White, Boyd Winston. “Validation of a geographic information system predictive habitat model for burrowing owls (Athene cunicularia) at US Army, Dugway Proving Ground.” 2009. Masters Thesis, Colorado State University. Accessed April 22, 2021. http://hdl.handle.net/10217/22103.

MLA Handbook (7^th Edition):

White, Boyd Winston. “Validation of a geographic information system predictive habitat model for burrowing owls (Athene cunicularia) at US Army, Dugway Proving Ground.” 2009. Web. 22 Apr 2021.

Vancouver:

White BW. Validation of a geographic information system predictive habitat model for burrowing owls (Athene cunicularia) at US Army, Dugway Proving Ground. [Internet] [Masters thesis]. Colorado State University; 2009. [cited 2021 Apr 22]. Available from: http://hdl.handle.net/10217/22103.

Council of Science Editors:

White BW. Validation of a geographic information system predictive habitat model for burrowing owls (Athene cunicularia) at US Army, Dugway Proving Ground. [Masters Thesis]. Colorado State University; 2009. Available from: http://hdl.handle.net/10217/22103

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