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Oregon State University
1.
ZoBell, Dale Richard.
The effect of monensin on efficiency and production of a brood cow herd.
Degree: MS, Animal Science, 1978, Oregon State University
URL: http://hdl.handle.net/1957/43789
► Ninety-six mature pregnant Hereford cows were allotted to three replications with four treatments. Pregnancy was determined by rectal palpation prior to the initiation of the…
(more)
▼ Ninety-six mature pregnant Hereford cows were allotted to three
replications with four treatments. Pregnancy was determined by rectal
palpation prior to the initiation of the study. The cows were
artificially inseminated the previous spring, beginning the end of
May, over a period of 42 days to a single Angus sire. Hereford
cleanup bulls followed for 21 days.
The cows were stratified by breeding date, weight, condition
score and the previous year's adjusted weaning weights and randomly
assigned to treatments. Replications were by calving date.
Monensin treatments consisted of 0, 50, 200 and 300 mg/hd/day
and was provided in ground barley. Controls received .45 kg of barley/
head/day with the
monensin treatments receiving their doses in
like amounts of barley.
The basic feed was native meadow hay containing 9.5% crude
protein. Hay was weighed in daily and refusals out weekly. Throughout
the study hay was adjusted to maintain equal weight gain or loss
between treatments.
Initially the control cows were fed hay free choice and consumed
13.4 kg/head/day. The initial
monensin treatment levels were 95% of
the control's diet for the 50 mg level and 90% each for the 200 and
300 mg groups. Hay consumption for the entire confinement period was
92, 89 and 90% of the control group's diet for the 50, 200 and 300 mg
groups respectively.
Rumen samples were taken twice during the study, once prior
to calving and another postpartum. An esophageal hose connected to
a vacuum pump was utilized on four cows per pen for a total of 48
samples. On the morning samples were taken the cows were fed at
one-half hour intervals to allow ample time for sampling. All cows
were sampled three to four hours after supplemental feeding. Volatile
fatty acid concentration results show rumen acetic acid production
was reduced and propionic increased with the 200 and 300 mg
levels.
Cow weights were obtained every 28 days prior to calving and
were used to adjust hay intake. Cows and calves were also weighed 24
hours postpartum, treatment termination and weaning.
Initial cow weights for the control, 50, 200 and 300 mg treatments
were 455, 447, 456 and 457 kg, respectively, with prepartum
gains of .34, .38, .38 and .37 kg. Weight loss during the calving
and postpartum periods were similar with the exception of the 300 mg
group, which lost more weight.
At or near time of calving cows were removed from their pens
and taken to a calving shed. Hay fed was adjusted accordingly so the
cows remaining in the pens received the proper level. Cows that lost
calves or had health problems were eliminated from subsequent data.
Advisors/Committee Members: Turner, H. A. (advisor), Raleigh, R. J. (committee member).
Subjects/Keywords: Monensin
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APA (6th Edition):
ZoBell, D. R. (1978). The effect of monensin on efficiency and production of a brood cow herd. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/43789
Chicago Manual of Style (16th Edition):
ZoBell, Dale Richard. “The effect of monensin on efficiency and production of a brood cow herd.” 1978. Masters Thesis, Oregon State University. Accessed April 13, 2021.
http://hdl.handle.net/1957/43789.
MLA Handbook (7th Edition):
ZoBell, Dale Richard. “The effect of monensin on efficiency and production of a brood cow herd.” 1978. Web. 13 Apr 2021.
Vancouver:
ZoBell DR. The effect of monensin on efficiency and production of a brood cow herd. [Internet] [Masters thesis]. Oregon State University; 1978. [cited 2021 Apr 13].
Available from: http://hdl.handle.net/1957/43789.
Council of Science Editors:
ZoBell DR. The effect of monensin on efficiency and production of a brood cow herd. [Masters Thesis]. Oregon State University; 1978. Available from: http://hdl.handle.net/1957/43789

Texas A&M University
2.
Boardman, Caleb Jay.
Effects of Monensin and Dietary Energy Intake on Maintenance Requiements in Beef Cows.
Degree: MS, Animal Science, 2015, Texas A&M University
URL: http://hdl.handle.net/1969.1/155413
► A decrease in land availability and inventory of the cow herd has created a concern for the sustainability of beef cattle production. Intensifying production by…
(more)
▼ A decrease in land availability and inventory of the cow herd has created a concern for the sustainability of beef cattle production. Intensifying production by feeding cows in a controlled environment (i.e. drylot) that allows for dietary manipulation could improve system efficiency, although logistical issues of feed delivery need to be solved. Subsequent trials were designed as 2 × 2 factorials to determine if limit-feeding an ionophore diet to cows during mid-gestation could reduce maintenance energy requirements. Both projects were designed to feed one diet at either 120% (H) or 80% (L) of NRC requirements with either 0 or 200 mg∙hd-1∙d-1 of
monensin. Forty cows were fed for 56 d to determine performance, while sixteen ruminally cannulated steers were used for intake and digestion. To aid in feed delivery, bulk density and void space were calculated for common feed ingredients to determine mix-ability and maximum payloads.
Steers fed L had greater (P < 0.01) DM digestion, OM, ADF and GE than H, while
monensin did not significantly affect digestion (P > 0.15). Passage rate was slower for L than H (P < 0.01) and 200 than 0 (P < 0.03). Acetate:propionate was lower in 200 than 0 (P < 0.01) while rumen pH was increased (P < 0.05). Cows gained more BW when fed at H versus L (P < 0.01) with no effect of
monensin (P = 0.97). Retained energy per EBW0.75 was greater for H than L (P < 0.01) although heat production was also greater (P < 0.01).
Monensin had no effect on either RE (P = 0.94) or HE (P = 0.53).
Monensin did not alter feed required for maintenance or fasting heat production. However, FHP was estimated to be 62.85 kcal∙EBW-0.75∙d-1, a decrease of 26.1% from NRC requirements. Roughages had lower (P <0.01) bulk density and greater void space (P < 0.01) than concentrates. Accurate predictions of maximum payload of multiple ingredients were able to be made from these calculations.
Overall, it appears limit-feeding diets can increase production efficiency of cow-calf systems. Use of bulk density and void space data may allow optimization of mixing and reduce delivery costs of high-roughage diets to large numbers of cattle in confinement systems.
Advisors/Committee Members: Wickersham, Tryon A (advisor), Sawyer, Jason E (advisor), Skaggs, Chris L (committee member), Mies, William L (committee member).
Subjects/Keywords: Monensin; maintenance requirements
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Chicago ·
MLA ·
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APA (6th Edition):
Boardman, C. J. (2015). Effects of Monensin and Dietary Energy Intake on Maintenance Requiements in Beef Cows. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/155413
Chicago Manual of Style (16th Edition):
Boardman, Caleb Jay. “Effects of Monensin and Dietary Energy Intake on Maintenance Requiements in Beef Cows.” 2015. Masters Thesis, Texas A&M University. Accessed April 13, 2021.
http://hdl.handle.net/1969.1/155413.
MLA Handbook (7th Edition):
Boardman, Caleb Jay. “Effects of Monensin and Dietary Energy Intake on Maintenance Requiements in Beef Cows.” 2015. Web. 13 Apr 2021.
Vancouver:
Boardman CJ. Effects of Monensin and Dietary Energy Intake on Maintenance Requiements in Beef Cows. [Internet] [Masters thesis]. Texas A&M University; 2015. [cited 2021 Apr 13].
Available from: http://hdl.handle.net/1969.1/155413.
Council of Science Editors:
Boardman CJ. Effects of Monensin and Dietary Energy Intake on Maintenance Requiements in Beef Cows. [Masters Thesis]. Texas A&M University; 2015. Available from: http://hdl.handle.net/1969.1/155413

Penn State University
3.
Washington, Maurice Taylor.
Monensin Degradation in Stockpiled Dairy Manure.
Degree: 2012, Penn State University
URL: https://submit-etda.libraries.psu.edu/catalog/15202
► Antibiotics are commonly used in livestock production for growth promotion and parasite control. A significant fraction of the administered antibiotics is excreted in manure rather…
(more)
▼ Antibiotics are commonly used in livestock production for growth promotion and parasite control. A significant fraction of the administered antibiotics is excreted in manure rather than being metabolized by the animal. Commonly, livestock manures are stored in lagoons or stockpiled prior to disposal by land application. In recent years, the prevalence of veterinary antibiotics and their fate in the environment has become a topic of concern. The environmental impacts of manure-borne antibiotics have not been fully elucidated. The major concerns are the development of antibiotic resistance and direct toxic effects on organisms in the terrestrial and aquatic environments. The occurrence and fate of
monensin in the environment related to dairy manure management has not been fully studied.
Monensin is an ionophore antibiotic used widely in dairy production. Monensin’s classification as a growth amplifier allows it to be considered a marker for agricultural pollution when found in the environment. Therefore, the focus of this research was to quantify the degradation of
monensin in stored dairy manure using composting and stockpiling. First, stockpiles were left undisturbed (SP treatments). The second treatment involved turning the piles at day-6 to simulate composting management (CP treatments). Additional turning of piles was initially planned, however, was not done because of pile size and the risk of losing additional pile heat prematurely.
The dairy manure was initially blended with oat straw and wood chips to achieve moisture content and carbon-to-nitrogen ratio of approximately 60% and 28, respectively. These conditions are considered ideal for microbial activity and, in turn, degradation of compounds like
monensin. Amended manure was segregated into piles roughly 2.3 m3 (3 yd3) each and the
monensin concentration was monitored over a 50-day period. Total
monensin (water extractable plus methanol extractable) analysis was conducted using enzyme-linked immunosorbent assay (ELISA) analysis. Pile temperature and organic matter content were also recorded periodically over the experimental period.
A reduction in
monensin concentration was observed with time for both treatments. Assuming first-order
monensin degradation, the calculated average half-lives were 57.8 d (compost) and 13.6 d (static).
Monensin seemed to dissipate by day 10 in the methanol extractable fraction but the water extractable concentration persisted to day 16. There were only three piles (CP2, CP4, and SP1) that had measurable concentrations of water extractable
monensin on the last day of sampling (day 50). Overall, the water extractable form made up 77.9% (compost) and 83.8% (static) of total
monensin.
The original intent of this study was not to quantify runoff. But due to heavy rainfall and elevated MC, runoff was observed from both treatments.
Monensin was detected in runoff from both treatments. Runoff from the compost treatments averaged 4.04 ng mL-1, while static treatments averaged 3.98 ng mL-1. These values were in…
Advisors/Committee Members: Herschel Adams Elliott, Thesis Advisor/Co-Advisor.
Subjects/Keywords: monensin; degradation; compost; stockpile; runoff
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APA ·
Chicago ·
MLA ·
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CSE |
Export
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APA (6th Edition):
Washington, M. T. (2012). Monensin Degradation in Stockpiled Dairy Manure. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/15202
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Washington, Maurice Taylor. “Monensin Degradation in Stockpiled Dairy Manure.” 2012. Thesis, Penn State University. Accessed April 13, 2021.
https://submit-etda.libraries.psu.edu/catalog/15202.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Washington, Maurice Taylor. “Monensin Degradation in Stockpiled Dairy Manure.” 2012. Web. 13 Apr 2021.
Vancouver:
Washington MT. Monensin Degradation in Stockpiled Dairy Manure. [Internet] [Thesis]. Penn State University; 2012. [cited 2021 Apr 13].
Available from: https://submit-etda.libraries.psu.edu/catalog/15202.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Washington MT. Monensin Degradation in Stockpiled Dairy Manure. [Thesis]. Penn State University; 2012. Available from: https://submit-etda.libraries.psu.edu/catalog/15202
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Michigan State University
4.
Hoogerheide, John Garret.
Physical chemical studies of the antibiotic ionophore monensin and its complexes.
Degree: 1978, Michigan State University
URL: http://etd.lib.msu.edu/islandora/object/etd:18806
Thesis (Ph.D.) - Michigan State University. Department of Chemistry
Subjects/Keywords: Monensin; Antibiotics; Monensin – Analysis
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Hoogerheide, J. G. (1978). Physical chemical studies of the antibiotic ionophore monensin and its complexes. (Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:18806
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Hoogerheide, John Garret. “Physical chemical studies of the antibiotic ionophore monensin and its complexes.” 1978. Thesis, Michigan State University. Accessed April 13, 2021.
http://etd.lib.msu.edu/islandora/object/etd:18806.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Hoogerheide, John Garret. “Physical chemical studies of the antibiotic ionophore monensin and its complexes.” 1978. Web. 13 Apr 2021.
Vancouver:
Hoogerheide JG. Physical chemical studies of the antibiotic ionophore monensin and its complexes. [Internet] [Thesis]. Michigan State University; 1978. [cited 2021 Apr 13].
Available from: http://etd.lib.msu.edu/islandora/object/etd:18806.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Hoogerheide JG. Physical chemical studies of the antibiotic ionophore monensin and its complexes. [Thesis]. Michigan State University; 1978. Available from: http://etd.lib.msu.edu/islandora/object/etd:18806
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Colorado State University
5.
Domby, Elizabeth Marie.
Effect of feed additive program in steam-flaked corn diets containing wet distiller's grains on performance and carcass merit in yearling feedlot steers, The.
Degree: MS(M.S.), Animal Sciences, 2011, Colorado State University
URL: http://hdl.handle.net/10217/47265
► Crossbred yearling steers (432, BW = 329 ± 10.5 kg) were used in an unbalanced randomized block design to examine the effect of feed additives…
(more)
▼ Crossbred yearling steers (432, BW = 329 ± 10.5 kg) were used in an unbalanced randomized block design to examine the effect of feed additives on performance and carcass merit. Treatment factors were arranged as a 2 x 2 factorial and included ionophore and antibiotic [Rumensin/Tylan (R/T) or Cattlyst/Aureomycin (C/A)] and dietary S (constant or variable). High S diets were fed on random days to the variable (VAR) treatment. Low S diets were fed to the VAR treatment on remaining days and to the constant (CON) treatment all days. From d 0 through 35, the high S diet was achieved by using a high S granular supplement; however, since S concentration in wet distillers grains (WDG) is associated with distillers solubles (DS) added to WDG and H2SO4 added to the DS, the high S diet was achieved from d 36 through 159 by using a DS based liquid supplement with 2.35% S while the low S diet was achieved using a 0.99% S DS based liquid supplement. Cause of cattle death for study steers was verified by necropsy. No interaction between S and additive treatments existed for feedlot performance; therefore, only main effects are presented. Most of the sulfur comparisons from this study will be addressed in another manuscript. Feedlot performance and carcass merit were similar for feed additive treatments. The S by feed additive interaction was significant (P < 0.05) for dressing percentage indicating that S treatment had no effect on dressing percentage if R/T was fed but when steers were fed C/A, dressing percentage was reduced by 0.72% (P < 0.02) if VAR diets were fed. The results of this study indicate that performance and carcass characteristics for cattle fed Cattlyst and Aureomycin are similar to performance and carcass characteristics for cattle fed Rumensin and Tylan.
Advisors/Committee Members: Wagner, John J. (advisor), Engle, Terry E. (advisor), Van Metre, David C. (committee member).
Subjects/Keywords: tylosin; antibiotic; chlortetracycline; ionophore; laidlomycin; monensin
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❌
APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Domby, E. M. (2011). Effect of feed additive program in steam-flaked corn diets containing wet distiller's grains on performance and carcass merit in yearling feedlot steers, The. (Masters Thesis). Colorado State University. Retrieved from http://hdl.handle.net/10217/47265
Chicago Manual of Style (16th Edition):
Domby, Elizabeth Marie. “Effect of feed additive program in steam-flaked corn diets containing wet distiller's grains on performance and carcass merit in yearling feedlot steers, The.” 2011. Masters Thesis, Colorado State University. Accessed April 13, 2021.
http://hdl.handle.net/10217/47265.
MLA Handbook (7th Edition):
Domby, Elizabeth Marie. “Effect of feed additive program in steam-flaked corn diets containing wet distiller's grains on performance and carcass merit in yearling feedlot steers, The.” 2011. Web. 13 Apr 2021.
Vancouver:
Domby EM. Effect of feed additive program in steam-flaked corn diets containing wet distiller's grains on performance and carcass merit in yearling feedlot steers, The. [Internet] [Masters thesis]. Colorado State University; 2011. [cited 2021 Apr 13].
Available from: http://hdl.handle.net/10217/47265.
Council of Science Editors:
Domby EM. Effect of feed additive program in steam-flaked corn diets containing wet distiller's grains on performance and carcass merit in yearling feedlot steers, The. [Masters Thesis]. Colorado State University; 2011. Available from: http://hdl.handle.net/10217/47265

Michigan State University
6.
Horvath, Christopher James.
Influence of monensin on selenium status and related factors in growing swine.
Degree: MS, Department of Large Animal Clinical Science, 1989, Michigan State University
URL: http://etd.lib.msu.edu/islandora/object/etd:20651
Subjects/Keywords: Monensin; Monensin – Physiological effect; Selenium in animal nutrition; Swine
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APA ·
Chicago ·
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APA (6th Edition):
Horvath, C. J. (1989). Influence of monensin on selenium status and related factors in growing swine. (Masters Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:20651
Chicago Manual of Style (16th Edition):
Horvath, Christopher James. “Influence of monensin on selenium status and related factors in growing swine.” 1989. Masters Thesis, Michigan State University. Accessed April 13, 2021.
http://etd.lib.msu.edu/islandora/object/etd:20651.
MLA Handbook (7th Edition):
Horvath, Christopher James. “Influence of monensin on selenium status and related factors in growing swine.” 1989. Web. 13 Apr 2021.
Vancouver:
Horvath CJ. Influence of monensin on selenium status and related factors in growing swine. [Internet] [Masters thesis]. Michigan State University; 1989. [cited 2021 Apr 13].
Available from: http://etd.lib.msu.edu/islandora/object/etd:20651.
Council of Science Editors:
Horvath CJ. Influence of monensin on selenium status and related factors in growing swine. [Masters Thesis]. Michigan State University; 1989. Available from: http://etd.lib.msu.edu/islandora/object/etd:20651

Colorado State University
7.
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 ·
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APA (6th 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 (16th 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 13, 2021.
http://hdl.handle.net/10217/170380.
MLA Handbook (7th Edition):
Fischer, Mariah. “Effects of monensin sodium, plant extracts and injectable trace minerals on feedlot performance, fertility and morbidity of beef cattle.” 2015. Web. 13 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 13].
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

Texas A&M University
8.
Bell, Natasha LuRey.
Supplementation Strategies to Improve Efficiency of Forage Utilization and Mitigate Enteric Methane Production in Bos indicus and Bos taurus Cattle.
Degree: PhD, Animal Science, 2015, Texas A&M University
URL: http://hdl.handle.net/1969.1/155117
► Multiple investigations were undertaken to determine the effect of various strategies for improving forage intake, digestion, and ruminal fermentation parameters in Bos indicus and Bos…
(more)
▼ Multiple investigations were undertaken to determine the effect of various strategies for improving forage intake, digestion, and ruminal fermentation parameters in Bos indicus and Bos taurus steers. Protein supplementation strategies and
monensin inclusion have the potential to improve animal production efficiency while mitigating enteric CH4 production; reducing the economic and environmental impact of cattle production systems. Effects of different levels and sources of supplemental protein on ruminal methane-producing activity, rate of NH3 production, and concentrations of methanogens, protozoa, amino acid-utilizing, and trypticase-metabolizing bacteria were investigated. Subspecies differences were not observed for any of the measured parameters (P ≥ 0.28). Additionally, the effects of
monensin inclusion and withdrawal on intake, digestion, and ruminal fermentation parameters were investigated. During the
monensin inclusion phase, a subspecies difference was observed (P = 0.04) for total digestible OM intake, and a tendency (P = 0.07) for a subspecies difference was observed for CH4-producing activity. During the
monensin withdrawal phase, subspecies differences were observed (P ≤ 0.01) for total digestible OM intake and OM digestibility, and a tendency (P ≤ 0.09) for subspecies differences were observed for pH and forage OM intake. Overall, results suggest that the difference in ability of Bi and Bt cattle to utilize forage is diet dependent and may be altered by protein supplementation and
monensin inclusion to improve production efficiency and mitigate enteric CH4 production.
Advisors/Committee Members: Wickersham, Tryon A (advisor), Sawyer, Jason E (advisor), Anderson, Robin C (committee member), Callaway, Todd R (committee member), Ramsey, Wesley S (committee member), Redmon, Larry A (committee member).
Subjects/Keywords: Bos indicus; Bos taurus; monensin; protein supplementation; forage utilization; cattle
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
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APA (6th Edition):
Bell, N. L. (2015). Supplementation Strategies to Improve Efficiency of Forage Utilization and Mitigate Enteric Methane Production in Bos indicus and Bos taurus Cattle. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/155117
Chicago Manual of Style (16th Edition):
Bell, Natasha LuRey. “Supplementation Strategies to Improve Efficiency of Forage Utilization and Mitigate Enteric Methane Production in Bos indicus and Bos taurus Cattle.” 2015. Doctoral Dissertation, Texas A&M University. Accessed April 13, 2021.
http://hdl.handle.net/1969.1/155117.
MLA Handbook (7th Edition):
Bell, Natasha LuRey. “Supplementation Strategies to Improve Efficiency of Forage Utilization and Mitigate Enteric Methane Production in Bos indicus and Bos taurus Cattle.” 2015. Web. 13 Apr 2021.
Vancouver:
Bell NL. Supplementation Strategies to Improve Efficiency of Forage Utilization and Mitigate Enteric Methane Production in Bos indicus and Bos taurus Cattle. [Internet] [Doctoral dissertation]. Texas A&M University; 2015. [cited 2021 Apr 13].
Available from: http://hdl.handle.net/1969.1/155117.
Council of Science Editors:
Bell NL. Supplementation Strategies to Improve Efficiency of Forage Utilization and Mitigate Enteric Methane Production in Bos indicus and Bos taurus Cattle. [Doctoral Dissertation]. Texas A&M University; 2015. Available from: http://hdl.handle.net/1969.1/155117

Penn State University
9.
Duppstadt, Leanna Marie.
Impact of Grazing Management, Monensin Supplementation and Weed Density on Beef Cow-Calf Performance and Pasture Production.
Degree: 2018, Penn State University
URL: https://submit-etda.libraries.psu.edu/catalog/15395lms5900
► Monensin (Rumensin 90®, Elanco Animal Health; Greenfield, IN) is a direct-fed ionophore that alters ruminal fermentation and has been shown to increase energy efficiency by…
(more)
▼ Monensin (Rumensin 90®, Elanco Animal Health; Greenfield, IN) is a direct-fed ionophore that alters ruminal fermentation and has been shown to increase energy efficiency by altering VFA production in the rumen, resulting in improved forage utilization. This suggests that
monensin has the potential to alleviate the effects of a cool-season perennial pasture “summer slump”. Weeds compete with desired forages for natural resources and can have a negative impact on livestock and pasture production. Grazing management strategies are implemented to encourage desirable forage growth and discourage the growth of undesirable species; suggesting that the implementation of rotational grazing could alleviate competition with weeds.
In experiment 1, 32 spring-calving, Angus-based cow-calf pairs were stratified into pastures based on body weight (BW) and blocked by age. The study was conducted using 2x2 factorial, for 3 years (2015-2017) with 56-d grazing seasons each year. All cows were limit-fed wheat mid-based pellets with (MON; 200 mg/cow/day) or without
monensin (NOMON). Treatments included 1) continuous grazing without
monensin supplementation (CONT NOMON); 2) continuous grazing with
monensin supplementation (CONT MON); 3) rotational grazing without
monensin supplementation (ROT NOMON); and 4) rotational grazing with
monensin supplementation (ROT MON). Cows in ROT were rotated every 7-d and desired forage height was maintained by put-and-take stocking. Precipitation was highest in June and July for Years 1 and 3, and lowest in Year 2. Temperatures were highest in July and August of Year 2 and this in combination with low precipitation created the ideal conditions for a true “summer slump” in PA in 2016.
There were no grazing x supplement interactions, nor were there main effects of
monensin inclusion or grazing management for Years 1 and 3 (P = 0.80 and P = 0.77, respectively). In Year 2, all cows lost BW and body condition score (BCS) from d 0 to 56, but cows on ROT receiving MON lost the least (grazing x supp: BW (P = 0.02) and BCS (P ≤ 0.01)).There were no main effects or interactions for carrying capacity (CC) or stocking rate (SR) in Years 1 and 3. Cows on ROT grazed pastures and cows receiving MON had greater CC and SR for grazing treatment (P = 0.07) and supplement treatment (P < 0.01) compared to CONT pastures and NOMON supplementation.
In experiment 2, 32 cow-calf pairs were grazed over 2 consecutive years either ROT or CONT to determine the effects of grazing management on weeds as well as weed-forage nitrogen uptake. The amount of weeds present in ROT tended to decrease (P = 0.13) while CONT weeds remained the same. Kentucky bluegrass increased (P = 0.06) in pastures that were CONT grazed. Orchardgrass tended to decrease in CONT and increase in ROT (P = 0.14). There was a year x nitrogen content interaction (P = 0.03) with weeds having a higher percent nitrogen (N) content across both years. Weeds also had a total N content that was higher (P ≤ 0.0001) than the desired forages.
During times of ample forage…
Advisors/Committee Members: Jessica Williamson, Thesis Advisor/Co-Advisor, Tara Felix, Committee Member, Marvin Hall, Thesis Advisor/Co-Advisor.
Subjects/Keywords: monensin; managed grazing; pasture productivity; weed management; beef production
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Duppstadt, L. M. (2018). Impact of Grazing Management, Monensin Supplementation and Weed Density on Beef Cow-Calf Performance and Pasture Production. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/15395lms5900
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Duppstadt, Leanna Marie. “Impact of Grazing Management, Monensin Supplementation and Weed Density on Beef Cow-Calf Performance and Pasture Production.” 2018. Thesis, Penn State University. Accessed April 13, 2021.
https://submit-etda.libraries.psu.edu/catalog/15395lms5900.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Duppstadt, Leanna Marie. “Impact of Grazing Management, Monensin Supplementation and Weed Density on Beef Cow-Calf Performance and Pasture Production.” 2018. Web. 13 Apr 2021.
Vancouver:
Duppstadt LM. Impact of Grazing Management, Monensin Supplementation and Weed Density on Beef Cow-Calf Performance and Pasture Production. [Internet] [Thesis]. Penn State University; 2018. [cited 2021 Apr 13].
Available from: https://submit-etda.libraries.psu.edu/catalog/15395lms5900.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Duppstadt LM. Impact of Grazing Management, Monensin Supplementation and Weed Density on Beef Cow-Calf Performance and Pasture Production. [Thesis]. Penn State University; 2018. Available from: https://submit-etda.libraries.psu.edu/catalog/15395lms5900
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Université de Montréal
10.
Dubuc, Jocelyn.
L'utilisation du prémélange Rumensin� chez les vaches laitières : les facteurs influençant son effet sur la production et la composition du lait.
Degree: 2007, Université de Montréal
URL: http://hdl.handle.net/1866/18025
Subjects/Keywords: Monensin; Production laitière; Gras; Nutrition
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Dubuc, J. (2007). L'utilisation du prémélange Rumensin� chez les vaches laitières : les facteurs influençant son effet sur la production et la composition du lait. (Thesis). Université de Montréal. Retrieved from http://hdl.handle.net/1866/18025
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Dubuc, Jocelyn. “L'utilisation du prémélange Rumensin� chez les vaches laitières : les facteurs influençant son effet sur la production et la composition du lait.” 2007. Thesis, Université de Montréal. Accessed April 13, 2021.
http://hdl.handle.net/1866/18025.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Dubuc, Jocelyn. “L'utilisation du prémélange Rumensin� chez les vaches laitières : les facteurs influençant son effet sur la production et la composition du lait.” 2007. Web. 13 Apr 2021.
Vancouver:
Dubuc J. L'utilisation du prémélange Rumensin� chez les vaches laitières : les facteurs influençant son effet sur la production et la composition du lait. [Internet] [Thesis]. Université de Montréal; 2007. [cited 2021 Apr 13].
Available from: http://hdl.handle.net/1866/18025.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Dubuc J. L'utilisation du prémélange Rumensin� chez les vaches laitières : les facteurs influençant son effet sur la production et la composition du lait. [Thesis]. Université de Montréal; 2007. Available from: http://hdl.handle.net/1866/18025
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
11.
Thompson, Alex.
IONOPHORE AND ANTIMICROBIAL STRATEGIES ALTER LIVE PERFORMANCE, CARCASS CHARACTERISTICS, AND IN VITRO RUMEN FERMENTATION PARAMETERS IN BEEF CATTLE.
Degree: PhD, Animal Science, 2017, Texas Tech University
URL: http://hdl.handle.net/2346/82053
► One hundred ninety-two steers (BW = 354 ± 23.5 kg) were used in a randomized block design to evaluate the effects of ionophore and ractopamine…
(more)
▼ One hundred ninety-two steers (BW = 354 ± 23.5 kg) were used in a randomized block design to evaluate the effects of ionophore and ractopamine hydrochloride (RH) supplementation strategies on performance and carcass characteristics. Twelve pens of 4 steers were assigned to each of the following treatments: unsupplemented control (CON), laidlomycin propionate (12.1 mg/kg DM) with or without RH (LPRH and LP, respectively), and
monensin sodium (36.4 mg/kg DM) with RH (MSRH). Steers were fed for 151 d, of which, respective treatments received RH (Actogain; Zoetis, Florham Park, NJ) at a rate of 300 mg/(head • d) for the final 32 d. Laidlomycin was removed from the LPRH treatment during this period, as no combination feeding has been approved. Upon harvest, carcass data was collected by trained personnel, and subsequent analysis of the LM was conducted in order to estimate tenderness using Warner-Bratzler shear force (WBSF). Prior to RH supplementation, both LP and LPRH had greater ADG (P ≤ 0.02) and G:F (P < 0.01) than CON, while MSRH was intermediate. During the final 32 d, MSRH improved G:F (P ≤ 0.02) compared to all other treatments and tended to increase ADG over unsupplemented controls (P = 0.05). Cattle receiving LP without RH had significantly greater BW at d 151 than CON (P = 0.02), while both RH treatments tended to improve final BW (P ≤ 0.09). Ionophores improved ADG (P ≤ 0.03) and G:F (P < 0.01) for the entire feeding period, and although LP supplemented cattle had greater DMI for the final 32 d than both RH treatments (P ≤ 0.01), intakes for the 151 d trial were similar among treatments. Carcass weights were greater (P = 0.04) in cattle fed LP with no RH than CON, where cattle yielded an average of 12 kg more HCW. Ractopamine increased LM area in MSRH supplemented cattle (P = 0.03) and tended to increase LM area for steers receiving LPRH (P = 0.07). Longissimus steaks of MSRH supplemented cattle had greater WBSF values than CON (P = 0.04) after 7 d of postmortem aging, and greater WBSF values than LPRH steaks after 28 d (P = 0.03). All other carcass and WBSF measurements were similar among treatments. The results of this study indicate that LP supplementation without RH may yield similar performance and carcass responses associated with the administration of a beta-agonist. These results also suggest that performance and carcass characteristics for cattle fed LP are similar to those of cattle fed
monensin throughout the feeding period.
Advisors/Committee Members: Johnson, Bradley J (advisor), Rathmann, Ryan J (committee member), Sarturi, Jhones O (committee member), Corbin, Marilyn J (committee member), Stevens, Richard D (committee member).
Subjects/Keywords: beef cattle; beta-agonist; ionophore; laidlomycin propionate; monensin sodium
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Thompson, A. (2017). IONOPHORE AND ANTIMICROBIAL STRATEGIES ALTER LIVE PERFORMANCE, CARCASS CHARACTERISTICS, AND IN VITRO RUMEN FERMENTATION PARAMETERS IN BEEF CATTLE. (Doctoral Dissertation). Texas Tech University. Retrieved from http://hdl.handle.net/2346/82053
Chicago Manual of Style (16th Edition):
Thompson, Alex. “IONOPHORE AND ANTIMICROBIAL STRATEGIES ALTER LIVE PERFORMANCE, CARCASS CHARACTERISTICS, AND IN VITRO RUMEN FERMENTATION PARAMETERS IN BEEF CATTLE.” 2017. Doctoral Dissertation, Texas Tech University. Accessed April 13, 2021.
http://hdl.handle.net/2346/82053.
MLA Handbook (7th Edition):
Thompson, Alex. “IONOPHORE AND ANTIMICROBIAL STRATEGIES ALTER LIVE PERFORMANCE, CARCASS CHARACTERISTICS, AND IN VITRO RUMEN FERMENTATION PARAMETERS IN BEEF CATTLE.” 2017. Web. 13 Apr 2021.
Vancouver:
Thompson A. IONOPHORE AND ANTIMICROBIAL STRATEGIES ALTER LIVE PERFORMANCE, CARCASS CHARACTERISTICS, AND IN VITRO RUMEN FERMENTATION PARAMETERS IN BEEF CATTLE. [Internet] [Doctoral dissertation]. Texas Tech University; 2017. [cited 2021 Apr 13].
Available from: http://hdl.handle.net/2346/82053.
Council of Science Editors:
Thompson A. IONOPHORE AND ANTIMICROBIAL STRATEGIES ALTER LIVE PERFORMANCE, CARCASS CHARACTERISTICS, AND IN VITRO RUMEN FERMENTATION PARAMETERS IN BEEF CATTLE. [Doctoral Dissertation]. Texas Tech University; 2017. Available from: http://hdl.handle.net/2346/82053

University of Connecticut
12.
Sivarajan, Kalai Selvam.
Regulation of Caenorhabditis elegans Spermatozoa Motility by Varying External pH.
Degree: MS, Biomedical Engineering, 2012, University of Connecticut
URL: https://opencommons.uconn.edu/gs_theses/339
► Cell motility describes the methods that cells use to move through an environment and to move things internal to the cell. Cells move mainly…
(more)
▼ Cell motility describes the methods that cells use to move through an environment and to move things internal to the cell. Cells move mainly to fulfill roles like tissue formation, tumor growth, wound healing, immune surveillance and engulfing pathogens. Cell locomotion involves protrusion of the leading edge of the cell with retraction of the cell body combining along with adhesion to the substrate. Each of these events depends on the dynamics of the cell’s cytoskeleton, which is typically composed of an actin network and other regulatory proteins. However, not all eukaryotic cells use an actin cytoskeleton to move. Since actin serve multiple roles inside cells, it is not clear what aspects of the complex biochemical network that includes actin is essential for cell locomotion.
Surprisingly, amoeboid sperm cells of nematodes not only provide a unique perspective for studying cell motility, but also offer a simple experimental model in which the role of actin is replaced by a 14-KDa nematode specific major sperm protein (MSP). MSP not only forms the cell’s cytoskeleton but is also directly involved in cell locomotion. In spite of extensive research on amoeboid sperm cells, the biophysical and biochemical mechanisms by which they move remain poorly understood.
The focus of this project is to get a better understanding of cytoskeleton dynamics and cell motility in nematode spermatozoa. We test the hypothesis that changes in external pH result in variation of spermatozoa cell motility and MSP assembly/disassembly. To test this hypothesis, we measured how external pH affects speed, shape, area, and MSP retrograde flow in
C.elegans sperm cells. Our results indicate that crawling speed for
C.elegans spermatozoa is optimized at a slightly basic pH of 7.5 and that this effect is driven by changes in the rate of polymerization at the leading edge of the cell.
Advisors/Committee Members: William Mohler, Ann Cowan, Charles Wolgemuth.
Subjects/Keywords: Cell Motility; Major Sperm Protein; Monensin; pH Regulation
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Sivarajan, K. S. (2012). Regulation of Caenorhabditis elegans Spermatozoa Motility by Varying External pH. (Masters Thesis). University of Connecticut. Retrieved from https://opencommons.uconn.edu/gs_theses/339
Chicago Manual of Style (16th Edition):
Sivarajan, Kalai Selvam. “Regulation of Caenorhabditis elegans Spermatozoa Motility by Varying External pH.” 2012. Masters Thesis, University of Connecticut. Accessed April 13, 2021.
https://opencommons.uconn.edu/gs_theses/339.
MLA Handbook (7th Edition):
Sivarajan, Kalai Selvam. “Regulation of Caenorhabditis elegans Spermatozoa Motility by Varying External pH.” 2012. Web. 13 Apr 2021.
Vancouver:
Sivarajan KS. Regulation of Caenorhabditis elegans Spermatozoa Motility by Varying External pH. [Internet] [Masters thesis]. University of Connecticut; 2012. [cited 2021 Apr 13].
Available from: https://opencommons.uconn.edu/gs_theses/339.
Council of Science Editors:
Sivarajan KS. Regulation of Caenorhabditis elegans Spermatozoa Motility by Varying External pH. [Masters Thesis]. University of Connecticut; 2012. Available from: https://opencommons.uconn.edu/gs_theses/339
13.
Stahl, Tess Catherine.
SODIUM BUTYRATE AND MONENSIN SUPPLEMENTATION TO POST-WEANED HEIFER DIETS: EFFECTS ON GROWTH PERFORMANCE, NUTRIENT DIGESTIBILITY, AND HEALTH.
Degree: MS, 2019, University of New Hampshire
URL: https://scholars.unh.edu/thesis/1333
► Much of the research on sodium butyrate (SB) has been conducted with pre-ruminant calves. Previous research with post-weaned calves was shown to be beneficial.…
(more)
▼ Much of the research on sodium butyrate (SB) has been conducted with pre-ruminant calves. Previous research with post-weaned calves was shown to be beneficial. The objective of this study was to compare sodium butyrate to
monensin (MON) on the growth, digestibility, and health of post-weaned heifers. Forty Holstein dairy heifers with a mean age of 84.2 d ± 1.2 d (mean ± SD) and average body weight (BW) of 99.78 kg ± 10.77 (mean ± SD) were housed in a naturally ventilated freestall barn. Heifers were blocked by birth date and randomly assigned to 1 of 4 treatments in a completely randomized block design: (1) 100 g of soybean meal carrier (control; CON); (2) 0.75 g SB/kg of BW + carrier; (3) 1 mg
monensin/kg of BW + carrier; (4)
monensin + 0.75 g SB per kg of BW (MSB). Data were statistically analyzed using single degree of freedom contrasts evaluating CON vs. all other treatments; SB vs. MON; and SB and MON vs. MSB. Treatments were top-dressed and hand-mixed into a total mixed ration (TMR) once daily. Heifers had free access to water. Amount of orts and feed offered to each heifer was measured daily. Feed and orts samples were frozen at -20°C for future analysis. Orts samples were taken daily and subsampled for later DM determination, while TMR samples were taken weekly and composited monthly for later DM and nutrient analysis. Initial BW, heart girth, paunch girth, and body length were measured before the start of the study and every week thereafter during the 12 wk trial (168 d old). Blood samples were obtained, and glucose and ketone concentrations were determined prior to the start of treatment and weekly until the conclusion of the study. Fecal grab samples were taken prior to treatment and every week from each heifer for coccidia counts. Apparent total-tract nutrient digestibility samples were taken in two different phases: 21 d on study until 27 d, and again at 63 d until 69 d. Apparent total tract nutrient digestibility was taken during this time and determined through acid-insoluble ash. Additives had a positive effect, tending to increase average BW and final BW. Any additive tended to increase heart girth, while MSB tended to be greater than either SB and MON. No other effects were seen on skeletal growth. Daily dry matter intakes (DMI) were increased in the diets containing additives as compared to control. Dry matter intake values were 4.00, 4.47, 4.16, and 4.46 kg/d for CON, SB, MON, and MSB, respectively. Feed efficiency (FE) was improved in MON supplemented heifers as compared to SB. Fecal samples from each heifer indicated the presence of coccidia. Compared to control, additives decreased the number of coccidian oocysts present in feces.
Monensin and SB treatments tended to have greater plasma glucose as compared to MSB. Average blood ketone concentrations were greater with any additive compared to CON, in SB vs. MON, and in MSB as compared to SB and MON. During the week 3 digestibility period, DMI tended to be greater in heifers fed SB when compared to MON, as well as heifers fed MSB when compared…
Advisors/Committee Members: Peter S. Erickson, Andre F Brito, Kayla M Aragona.
Subjects/Keywords: Dairy heifers; Dairy science; Heifers; Holstein; Monensin; Sodium butyrate
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Stahl, T. C. (2019). SODIUM BUTYRATE AND MONENSIN SUPPLEMENTATION TO POST-WEANED HEIFER DIETS: EFFECTS ON GROWTH PERFORMANCE, NUTRIENT DIGESTIBILITY, AND HEALTH. (Thesis). University of New Hampshire. Retrieved from https://scholars.unh.edu/thesis/1333
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Stahl, Tess Catherine. “SODIUM BUTYRATE AND MONENSIN SUPPLEMENTATION TO POST-WEANED HEIFER DIETS: EFFECTS ON GROWTH PERFORMANCE, NUTRIENT DIGESTIBILITY, AND HEALTH.” 2019. Thesis, University of New Hampshire. Accessed April 13, 2021.
https://scholars.unh.edu/thesis/1333.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Stahl, Tess Catherine. “SODIUM BUTYRATE AND MONENSIN SUPPLEMENTATION TO POST-WEANED HEIFER DIETS: EFFECTS ON GROWTH PERFORMANCE, NUTRIENT DIGESTIBILITY, AND HEALTH.” 2019. Web. 13 Apr 2021.
Vancouver:
Stahl TC. SODIUM BUTYRATE AND MONENSIN SUPPLEMENTATION TO POST-WEANED HEIFER DIETS: EFFECTS ON GROWTH PERFORMANCE, NUTRIENT DIGESTIBILITY, AND HEALTH. [Internet] [Thesis]. University of New Hampshire; 2019. [cited 2021 Apr 13].
Available from: https://scholars.unh.edu/thesis/1333.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Stahl TC. SODIUM BUTYRATE AND MONENSIN SUPPLEMENTATION TO POST-WEANED HEIFER DIETS: EFFECTS ON GROWTH PERFORMANCE, NUTRIENT DIGESTIBILITY, AND HEALTH. [Thesis]. University of New Hampshire; 2019. Available from: https://scholars.unh.edu/thesis/1333
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Oklahoma State University
14.
Sexten, Austin.
Effects of Hay Processing and Feeder Design on Hay Utilization.
Degree: Department of Animal Science, 2011, Oklahoma State University
URL: http://hdl.handle.net/11244/8860
► Four experiments evaluated the effects of hay processing, bale feeder type and supplementation on hay utilization of beef cattle. Experiment 1used 64 crossbred gestating beef…
(more)
▼ Four experiments evaluated the effects of hay processing, bale feeder type and supplementation on hay utilization of beef cattle. Experiment 1used 64 crossbred gestating beef cows with two levels of hay processing (long stemmed [LONG] and pre-cut [PCUT]) and two hay feeders (conventional ring feeder [RING] and cone [CONE]). LONG hay had less waste than PCUT (P = 0.003). CONE feeders wasted less hay than RING feeders (P = 0.0002). DMI was not affected by treatments. The second experiment utilized 96 crossbred, weaned calves in assessing the effect of hay processing on post weaning performance. No practical differences were found (P = 0.65). In the third experiment, cow/calf pairs were used to evaluate the effect of hay type on hay utilization. LONG hay wasted less than PCUT (P = 0.03). DMI was not affected by treatment (P = 0.66). Finally the effects of feeder type and supplemental monensin (MON) on hay utilization in beef cows was evaluated using 56 crossbred beef cows in a split-plot with a completely randomized design with supplement as the main unit and a feeder design as the subunit. The main unit included two supplement treatments, while the subunit included four hay feeder designs. Supplement treatments included a 36% CP cottonseed meal based pellet with 0 (CONT; control) or 200 mg/head of MON, fed at a rate of 1.36 kg/ head daily. Feeder treatments included a conventional open bottomed steel ring (OBSR), a sheeted bottomed steel ring (RING), a polyethylene pipe ring (POLY), and a modified cone feeder (MODC). Hay waste was affected by feeder design (P < 0.01). Supplement did not affect hay waste (P = 0.81). DMI was not affected by supplement (P = 0.45) but trended to differ among feeder types (P = 0.12). Supplemental MON improved cow performance (P < 0.05) and apparent digestibility (P < 0.05). The results of these experiments illustrate the importance of bale feeder design, hay processing, and supplementation on a cow/calf operation's profit potential considering that nutritional costs account for 40 to 60% of the annual budget.
Subjects/Keywords: beef cattle; hay feeder; hay processing; hay waste; monensin; supplementation
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Sexten, A. (2011). Effects of Hay Processing and Feeder Design on Hay Utilization. (Thesis). Oklahoma State University. Retrieved from http://hdl.handle.net/11244/8860
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Sexten, Austin. “Effects of Hay Processing and Feeder Design on Hay Utilization.” 2011. Thesis, Oklahoma State University. Accessed April 13, 2021.
http://hdl.handle.net/11244/8860.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Sexten, Austin. “Effects of Hay Processing and Feeder Design on Hay Utilization.” 2011. Web. 13 Apr 2021.
Vancouver:
Sexten A. Effects of Hay Processing and Feeder Design on Hay Utilization. [Internet] [Thesis]. Oklahoma State University; 2011. [cited 2021 Apr 13].
Available from: http://hdl.handle.net/11244/8860.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Sexten A. Effects of Hay Processing and Feeder Design on Hay Utilization. [Thesis]. Oklahoma State University; 2011. Available from: http://hdl.handle.net/11244/8860
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Kentucky
15.
Bruno, Kelsey.
RELATIONSHIPS BETWEEN BEHAVIORAL MEASURES AND PRODUCTIVITY IN GROWING BEEF CATTLE.
Degree: 2015, University of Kentucky
URL: https://uknowledge.uky.edu/animalsci_etds/46
► The relationships between behavioral measures, growth performance, and immunocompetence in receiving beef steers were explored in three experiments. Specifically, exit velocity (EV) and objective chute…
(more)
▼ The relationships between behavioral measures, growth performance, and immunocompetence in receiving beef steers were explored in three experiments. Specifically, exit velocity (EV) and objective chute score (OCS) were examined as temperament measures. In experiment 1, no main effects or interactions with degradable intake protein (DIP) or interactions between temperament measures were observed (P ≥ 0.11); however, high OCS steers had greater intake and gain:feed (P < 0.10) and slow EV steers had higher intake and gain (P < 0.10) than their counterparts. In experiment 2, during week two of social observations, dominance hierarchy rankings were dependent on OCS and EV (P < 0.05); slow EV steers also had increased antibody responses and gain (P < 0.10) and high OCS steers had increased gain (P < 0.10). In experiment 3, subjective chute scores and OCS were positively correlated (P < 0.01) and both EV and OCS treatments changed over time (P < 0.10); intake, vaccine titer response, and gain:feed responses to monensin were dependent on OCS treatment (P < 0.10). The studies suggest that temperament, measured by EV and OCS, affects growth performance and health related measures and is related to social dominance behavior in receiving beef steers.
Subjects/Keywords: temperament; social behavior; monensin; growth performance; Beef cattle; Animal Sciences
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APA (6th Edition):
Bruno, K. (2015). RELATIONSHIPS BETWEEN BEHAVIORAL MEASURES AND PRODUCTIVITY IN GROWING BEEF CATTLE. (Masters Thesis). University of Kentucky. Retrieved from https://uknowledge.uky.edu/animalsci_etds/46
Chicago Manual of Style (16th Edition):
Bruno, Kelsey. “RELATIONSHIPS BETWEEN BEHAVIORAL MEASURES AND PRODUCTIVITY IN GROWING BEEF CATTLE.” 2015. Masters Thesis, University of Kentucky. Accessed April 13, 2021.
https://uknowledge.uky.edu/animalsci_etds/46.
MLA Handbook (7th Edition):
Bruno, Kelsey. “RELATIONSHIPS BETWEEN BEHAVIORAL MEASURES AND PRODUCTIVITY IN GROWING BEEF CATTLE.” 2015. Web. 13 Apr 2021.
Vancouver:
Bruno K. RELATIONSHIPS BETWEEN BEHAVIORAL MEASURES AND PRODUCTIVITY IN GROWING BEEF CATTLE. [Internet] [Masters thesis]. University of Kentucky; 2015. [cited 2021 Apr 13].
Available from: https://uknowledge.uky.edu/animalsci_etds/46.
Council of Science Editors:
Bruno K. RELATIONSHIPS BETWEEN BEHAVIORAL MEASURES AND PRODUCTIVITY IN GROWING BEEF CATTLE. [Masters Thesis]. University of Kentucky; 2015. Available from: https://uknowledge.uky.edu/animalsci_etds/46

Oklahoma State University
16.
Linneen, Sara Koren.
Application of Feed Additive Technologies to Enhance Health and Performance of Forage-fed Cattle.
Degree: Animal Science, 2014, Oklahoma State University
URL: http://hdl.handle.net/11244/14972
► A total of 260 cows and 7 cannulated steers were used in four studies to the effects of Bio-Mos, monensin, and slow release urea on…
(more)
▼ A total of 260 cows and 7 cannulated steers were used in four studies to the effects of Bio-Mos,
monensin, and slow release urea on cow and calf performance, passive immunity, and in situ digestibility. All experiments were conducted at the Oklahoma State University North Range unit using Angus and Angus X Hereford cows and crossbred steers. All experimental diets were fed as a protein supplement containing at least 38% crude protein and: 10 g/head/d of Bio-Mos, 200 mg/head/d of
monensin (cows), 250 mg/head/d
monensin (steers), and 526 g of slow release urea. Feeding cows Bio-Mos in late gestation did not improve the transfer of passive immunity to the calf (P > 0.19), or calf growth performance (P > 0.43), but it improved cow BCS change for the trial duration (P = 0.05). Cows consuming
monensin during late gestation and lactation did not have improved performance (P > 0.19) or milk yield (P > 0.41); however, calves born to cows consuming
monensin had greater ADG from birth to the end of the feeding period (P = 0.04).
Monensin also did not improve blood glucose of the cow two hours after eating (P > 0.16). When fed to steers,
monensin tended to reduce DMI (P = 0.07), and increased digestibility of NDF, ADF, and DM (P < 0.01). It also significantly increased (P = 0.01) propionate at the expense of acetate and propionate indicating that steers had improved energetic efficiency from consuming
monensin. Combining
monensin and slow-release urea appeared to lessen the BW loss among cows consuming only slow release urea. Replacing a portion of the cottonseed meal with slow release urea did not reduce animal performance, or digestibility, making it a valid and less expensive replacement for true protein in the winter cow supplementation program. Calf growth performance is improved by feeding cows
monensin, making it an effective dietary option for improving preweaning efficiency.
Advisors/Committee Members: Lalman, David L. (advisor), Horn, Gerald W. (committee member), Goad, Carla Lynn (committee member), Carter, Scott (committee member), Ritchey, Jerry (committee member).
Subjects/Keywords: calf; cow; mannan oligosaccharide; monensin; passive immunity; urea
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APA ·
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MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Linneen, S. K. (2014). Application of Feed Additive Technologies to Enhance Health and Performance of Forage-fed Cattle. (Thesis). Oklahoma State University. Retrieved from http://hdl.handle.net/11244/14972
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Linneen, Sara Koren. “Application of Feed Additive Technologies to Enhance Health and Performance of Forage-fed Cattle.” 2014. Thesis, Oklahoma State University. Accessed April 13, 2021.
http://hdl.handle.net/11244/14972.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Linneen, Sara Koren. “Application of Feed Additive Technologies to Enhance Health and Performance of Forage-fed Cattle.” 2014. Web. 13 Apr 2021.
Vancouver:
Linneen SK. Application of Feed Additive Technologies to Enhance Health and Performance of Forage-fed Cattle. [Internet] [Thesis]. Oklahoma State University; 2014. [cited 2021 Apr 13].
Available from: http://hdl.handle.net/11244/14972.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Linneen SK. Application of Feed Additive Technologies to Enhance Health and Performance of Forage-fed Cattle. [Thesis]. Oklahoma State University; 2014. Available from: http://hdl.handle.net/11244/14972
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Michigan State University
17.
Gertenbach, Paul Gilman, 1949-.
Physical chemical study of monensin and its alkali metal ion complexes.
Degree: PhD, Department of Chemistry, 1975, Michigan State University
URL: http://etd.lib.msu.edu/islandora/object/etd:40302
Subjects/Keywords: Monensin; Antibiotics – Analysis; Alkali metals
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Gertenbach, Paul Gilman, 1. (1975). Physical chemical study of monensin and its alkali metal ion complexes. (Doctoral Dissertation). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:40302
Chicago Manual of Style (16th Edition):
Gertenbach, Paul Gilman, 1949-. “Physical chemical study of monensin and its alkali metal ion complexes.” 1975. Doctoral Dissertation, Michigan State University. Accessed April 13, 2021.
http://etd.lib.msu.edu/islandora/object/etd:40302.
MLA Handbook (7th Edition):
Gertenbach, Paul Gilman, 1949-. “Physical chemical study of monensin and its alkali metal ion complexes.” 1975. Web. 13 Apr 2021.
Vancouver:
Gertenbach, Paul Gilman 1. Physical chemical study of monensin and its alkali metal ion complexes. [Internet] [Doctoral dissertation]. Michigan State University; 1975. [cited 2021 Apr 13].
Available from: http://etd.lib.msu.edu/islandora/object/etd:40302.
Council of Science Editors:
Gertenbach, Paul Gilman 1. Physical chemical study of monensin and its alkali metal ion complexes. [Doctoral Dissertation]. Michigan State University; 1975. Available from: http://etd.lib.msu.edu/islandora/object/etd:40302

The Ohio State University
18.
Morris, Dennis L.
Effects of Reduced-Fat Distillers Grains with and without
Monensin on Performance and Nutrient Excretion of Dairy
Cows.
Degree: MS, Animal Sciences, 2017, The Ohio State University
URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1510842411347396
► This research was designed to study the long-term effects of feeding a high corn reduced-fat distillers grains (RFDG) on long-term performance, and nutrient excretion and…
(more)
▼ This research was designed to study the long-term
effects of feeding a high corn reduced-fat distillers grains (RFDG)
on long-term performance, and nutrient excretion and utilization of
dairy cattle and if the addition of
monensin to a high-RFDG diet
affected performance and nutrient excretion. To assess these
objectives, 36 mid-lactation Holstein cows were fed either a
control (CON), a 28.8% RFDG diet (DM basis) replacing SBM,
soyhulls, and supplemental fat and calcium phosphate (DG), or the
DG diet with
monensin at 20 mg/kg of DM (DGMon). The experiment was
conducted for 11 weeks during which dry matter intake (DMI); milk
yield, composition, and fatty acid profile; fecal, and urinary
excretion and milk secretion of nitrogen (N), phosphorus (P) and
sulfur (S) were measured. For the production portion of the
experiment, RFDG diets (i.e., DG + DGMon) vs. CON did not affect
milk yield (40.3 vs. 40.8 kg/d), but decreased DMI (24.9 vs. 26.4
kg/d), milk fat yield (1.12 vs.1.55 kg/d), milk protein yield (1.24
vs. 1.32 kg/d), and energy-corrected milk yield (37.7 vs. 43.5
kg/d). Adding
monensin to the DG diet (i.e., DGMon vs. DG) did not
affect DMI (24.4 vs. 25.4 kg/d) and milk yield (39.2 vs. 41.3
kg/d), but decreased milk fat yield (1.08 vs. 1.23 kg/d), milk
protein yield (1.20 vs. 1.28 kg/d), and energy-corrected milk yield
(36.0 vs. 39.4 kg/d). Additionally, difference in DMI between
treatments increased as the experiment progressed and tended to be
different by the conclusion of the trial (27.8, 25.4, and 23.4 kg/d
for CON, DG and DGMon, respectively). Furthermore, milk fat yield
and energy-corrected milk yield decreased for DG diets vs. CON as
the experiment progressed. For milk fatty acid profile, feeding DG
and DGMon compared to CON resulted in an increased concentration of
trans-10, cis-12 18:2, trans-10 18:2, long-chain (> 16C), and
polyunsaturated fatty acids, and a decrease in short-chain
(<16C) and most odd- and branched-chain fatty acids compared
with CON. Milk fatty acid profile for DGMon did not differ from DG.
For the nutrient excretion portion of the experiment, RDP (9.9 vs.
10.7%) decreased whereas dietary P (0.48 vs. 0.36%) and S content
(0.41 vs. 0.21%; DM basis) increased in the DG diets compared to
CON. This resulted in decreased urinary N excretion (255 vs. 283
g/d) and increased fecal P (66.7 vs. 46.9 g/d), urinary P (5.4 vs.
0.3 g/d), fecal S (25.7 vs. 22.7 g/d), and urinary S (57.5 vs. 16.1
g/d) excretion for DG diets vs. CON. Adding
monensin to the DG diet
(i.e., DGMon vs. DG) did not affect most N, P, and S utilization
and excretion measurements except that N digestibility increased
(74.0 vs. 72.3 %).Feeding a high-RFDG negatively affected long-term
performance of dairy cattle via decreased DMI, milk fat and milk
protein yield. The addition of
monensin to a high-RFDG diet
decreased milk fat and protein yield and long-term DMI. As expected
RFDG increased P and S excretion, however, feeding RFDG instead of
SBM decreased urinary N excretion. Additionally,
monensin did not
improve nutrient…
Advisors/Committee Members: Lee, Chanhee (Advisor).
Subjects/Keywords: Animal Sciences; dairy cows; distillers grains; monensin; performance; nutrient excretion
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Morris, D. L. (2017). Effects of Reduced-Fat Distillers Grains with and without
Monensin on Performance and Nutrient Excretion of Dairy
Cows. (Masters Thesis). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1510842411347396
Chicago Manual of Style (16th Edition):
Morris, Dennis L. “Effects of Reduced-Fat Distillers Grains with and without
Monensin on Performance and Nutrient Excretion of Dairy
Cows.” 2017. Masters Thesis, The Ohio State University. Accessed April 13, 2021.
http://rave.ohiolink.edu/etdc/view?acc_num=osu1510842411347396.
MLA Handbook (7th Edition):
Morris, Dennis L. “Effects of Reduced-Fat Distillers Grains with and without
Monensin on Performance and Nutrient Excretion of Dairy
Cows.” 2017. Web. 13 Apr 2021.
Vancouver:
Morris DL. Effects of Reduced-Fat Distillers Grains with and without
Monensin on Performance and Nutrient Excretion of Dairy
Cows. [Internet] [Masters thesis]. The Ohio State University; 2017. [cited 2021 Apr 13].
Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1510842411347396.
Council of Science Editors:
Morris DL. Effects of Reduced-Fat Distillers Grains with and without
Monensin on Performance and Nutrient Excretion of Dairy
Cows. [Masters Thesis]. The Ohio State University; 2017. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1510842411347396
19.
Khazen, Roxana.
Dissecting early mechanism of melanoma cell resistance to cytotoxic T lymphocyte attack : Etude du mécanisme précoce de la résistance des cellules du mélanome à l'attaque des lymphocytes T cytotoxique.
Degree: Docteur es, Immunologie, 2016, Université Toulouse III – Paul Sabatier
URL: http://www.theses.fr/2016TOU30007
► Les cellules de mélanome humain expriment différents antigènes tumoraux qui sont reconnus par les lymphocytes T cytotoxiques CD8 + (CTL) induisant des réponses spécifiques de…
(more)
▼ Les cellules de mélanome humain expriment différents antigènes tumoraux qui sont reconnus par les lymphocytes T cytotoxiques CD8 + (CTL) induisant des réponses spécifiques de la tumeur in vivo. Cependant, chez les patients atteints de mélanome l'efficacité de la réponse naturelle des CTL ou stimulée par thérapie est limitée. Les mécanismes sous-jacents de l'échec de la phase effectrice des CTL contre les mélanomes sont encore largement méconnus. Notre hypothèse est que l'efficacité limitée des CTL dans leur combat contre les tumeurs est le résultat d'une balance défavorable entre la capacité des CTL à tuer les tumeurs et une résistance tumorale intrinsèque à l'activité cytolytique des CTL. Au cours de ma thèse je me suis concentrée sur la dynamique moléculaire qui se produit à la synapse lytique afin de pouvoir identifier un mécanisme précoce mis en place par les cellules de mélanome face à l'attaque des CTL. En combinant l'utilisation d'approches de microscopie de pointe et des outils moléculaires, j'ai pu montrer que, lors de l'interaction avec les CTL, les cellules de mélanome humain subissent une activation de leur trafic vésiculaire endosomal et lysosomal, lequel est intensifié à la synapse lytique et corrèle avec la dégradation par la cathepsine de la perforine et un défaut de pénétration d'entrée du granzyme B. De plus, j'ai démontré que le blocage du trafic lysosomal dépendant de SNAP23, la modification du pH (intra-vésiculaire) et l'inhibition de l'activité lysosomale protéotlytique des cellules de mélanome permet de restaurer leur sensibilité à l'attaque des CTL. Nos résultats révèlent une stratégie sans précédent d' " auto-défense " des cellules de mélanome à la synapse immunologique basée sur une sécrétion lysosomale massive et sur la dégradation de la perforine sécrétée par les CTL. Ainsi pouvoir interférer avec cette stratégie synaptique d'auto-défense des cellules de mélanome pourrait contribuer à potentialiser les réponses des CTL et les immunothérapies chez les patients atteints de mélanome.
Human melanoma cells express various tumor antigens that are recognized by CD8+ cytotoxic T lymphocytes (CTL) and elicit tumor-specific responses in vivo. However, natural and therapeutically enhanced CTL responses in melanoma patients are of limited efficacy. The mechanisms underlying the failure of CTL effector phase against melanomas are still largely elusive. Our hypothesis is that the limited efficacy of CTL in their fight against tumors is the result of an unfavorable balance between CTL ability to kill tumors and an intrinsic tumor resistance to CTL cytolytic activity. During my thesis I focused on the molecular dynamics occurring at the lytic synapse in order to identify possible "early response-mechanism" of melanoma cells to CTL attack. Using a combination of cutting edge microscopy approaches and molecular tools, I showed that upon conjugation with CTL, human melanoma cells undergo an exacerbated late endosome/lysosome trafficking, which is intensified at the lytic synapse and is paralleled by…
Advisors/Committee Members: Valitutti, Salvatore (thesis director).
Subjects/Keywords: Lytic synapse; Melanoma; Cytotoxic T cells; Late lysosomes endosomes; Cathepsin; Perforin; Immunotherapy; Monensin; Lytic synapse; Melanoma; Cytotoxic T cells; Late lysosomes endosomes; Cathepsin; Perforin; Immunotherapy; Monensin
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Khazen, R. (2016). Dissecting early mechanism of melanoma cell resistance to cytotoxic T lymphocyte attack : Etude du mécanisme précoce de la résistance des cellules du mélanome à l'attaque des lymphocytes T cytotoxique. (Doctoral Dissertation). Université Toulouse III – Paul Sabatier. Retrieved from http://www.theses.fr/2016TOU30007
Chicago Manual of Style (16th Edition):
Khazen, Roxana. “Dissecting early mechanism of melanoma cell resistance to cytotoxic T lymphocyte attack : Etude du mécanisme précoce de la résistance des cellules du mélanome à l'attaque des lymphocytes T cytotoxique.” 2016. Doctoral Dissertation, Université Toulouse III – Paul Sabatier. Accessed April 13, 2021.
http://www.theses.fr/2016TOU30007.
MLA Handbook (7th Edition):
Khazen, Roxana. “Dissecting early mechanism of melanoma cell resistance to cytotoxic T lymphocyte attack : Etude du mécanisme précoce de la résistance des cellules du mélanome à l'attaque des lymphocytes T cytotoxique.” 2016. Web. 13 Apr 2021.
Vancouver:
Khazen R. Dissecting early mechanism of melanoma cell resistance to cytotoxic T lymphocyte attack : Etude du mécanisme précoce de la résistance des cellules du mélanome à l'attaque des lymphocytes T cytotoxique. [Internet] [Doctoral dissertation]. Université Toulouse III – Paul Sabatier; 2016. [cited 2021 Apr 13].
Available from: http://www.theses.fr/2016TOU30007.
Council of Science Editors:
Khazen R. Dissecting early mechanism of melanoma cell resistance to cytotoxic T lymphocyte attack : Etude du mécanisme précoce de la résistance des cellules du mélanome à l'attaque des lymphocytes T cytotoxique. [Doctoral Dissertation]. Université Toulouse III – Paul Sabatier; 2016. Available from: http://www.theses.fr/2016TOU30007

University of Ottawa
20.
Choudhry, Asna Ali.
Characterization of Atrial Natriuretic Factor Storage Pools in HL-1 Atrial Cardiomyocytes
.
Degree: 2011, University of Ottawa
URL: http://hdl.handle.net/10393/20129
► Atrial natriuretic factor (ANF) is a cardiac hormone that helps maintain cardiovascular homeostasis. ANF secretion is linked to the constitutive, regulated and constitutive-like pathways. Presence…
(more)
▼ Atrial natriuretic factor (ANF) is a cardiac hormone that helps maintain cardiovascular homeostasis. ANF secretion is linked to the constitutive, regulated and constitutive-like pathways. Presence of a monensin-sensitive pool that may follow constitutive-like secretion has previously been identified in an isolated atrial perfusion study. The intracellular ANF storage pools linked to each secretory pathway have not been identified. In this study, ANF storage and secretion was characterized in HL-1 atrial cardiomyocytes through the use of pharmacological agents, density gradient and RP- HPLC analysis. Treatment of HL-1 cells with monensin followed by cell fractionation was unsuccessful in identifying the monensin-sensitive pool. RP-HPLC analysis identified presence of low molecular weight ANF in low density gradient fractions that were defined by the presence of organelle markers of Golgi, early endosome, clathrin and corin. Since the monensin-sensitive pool was thought to be of a constitutive-like nature, targeting this pathway with pharmacological inhibitors of clathrin coat vesicle (CCV) formation and endosomal trafficking failed to prevent stimuli-independent secretion. Based on an inability to prevent ANF secretion by targeting the constitutive-like pathway and the presence of low molecular weight ANF in low density gradient fractions, stimuli- independent ANF secretion seems to be through a constitutive pathway.
Subjects/Keywords: Atrial Natriuretic Factor (ANF);
HL-1 atrial cardiomyocytes;
Monensin;
proANF;
Secretory Pathways
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Choudhry, A. A. (2011). Characterization of Atrial Natriuretic Factor Storage Pools in HL-1 Atrial Cardiomyocytes
. (Thesis). University of Ottawa. Retrieved from http://hdl.handle.net/10393/20129
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Choudhry, Asna Ali. “Characterization of Atrial Natriuretic Factor Storage Pools in HL-1 Atrial Cardiomyocytes
.” 2011. Thesis, University of Ottawa. Accessed April 13, 2021.
http://hdl.handle.net/10393/20129.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Choudhry, Asna Ali. “Characterization of Atrial Natriuretic Factor Storage Pools in HL-1 Atrial Cardiomyocytes
.” 2011. Web. 13 Apr 2021.
Vancouver:
Choudhry AA. Characterization of Atrial Natriuretic Factor Storage Pools in HL-1 Atrial Cardiomyocytes
. [Internet] [Thesis]. University of Ottawa; 2011. [cited 2021 Apr 13].
Available from: http://hdl.handle.net/10393/20129.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Choudhry AA. Characterization of Atrial Natriuretic Factor Storage Pools in HL-1 Atrial Cardiomyocytes
. [Thesis]. University of Ottawa; 2011. Available from: http://hdl.handle.net/10393/20129
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
21.
Vasquez, Joel.
Effects of close-up dietary energy strategy and prepartal dietary monensin on production and metabolism in Holstein cows.
Degree: MS, 0002, 2013, University of Illinois – Urbana-Champaign
URL: http://hdl.handle.net/2142/42237
► The objective of this study was to evaluate the inclusion of 22 g/ton of monensin (M) in a single group diet (controlled energy-high fiber, CE)…
(more)
▼ The objective of this study was to evaluate the inclusion of 22 g/ton of
monensin (M) in a single group diet (controlled energy-high fiber, CE) and a two-group diet (CE during the far-off and a high energy diet during close-up, CU) during the dry period (DP) on production and metabolism in the first 84 days postpartum. The CE diet was formulated for a dietary energy concentration of 1.30 Mcal NEL /kg DM and the CU diet for 1.49 Mcal NEL /kg DM. A total of 102 cows (70 multiparous and 32 primiparous) were assigned randomly to 1 of the 4 treatments in a 2 (CE or CE/CU DP feeding strategy) × 2 (inclusion of 0 or 22 g/ton of M) factorial arrangement. After calving, all cows received a lactation diet formulated for a dietary energy concentration of 1.70 Mcal NEL /kg DM and 14 g/ton of M. Liver samples were obtained of a subset of mature cows at -10 and 7 d relative to calving. Dry matter intake (DMI) was not affected by the inclusion of M or diet fed during the far-off period, but was 1.7 kg greater during the close-up period for cows that were fed the CU diet than cows fed CE (P < 0.001). None of the treatments affected DMI, body weight, or body condition score during the 84 d of lactation. Neither of the feeding strategies affected milk yield, milk component yields, percentage of milk protein, or fat-corrected milk except that percentage of milk fat was higher for CU than for CE (P = 0.03). The inclusion of M increased lactose content (P < 0.01) and yields of lactose (P = 0.03), fat (P = 0.01), total solids (P = 0.03), and FCM (P = 0.01), and tended to increase milk yield (P = 0.06). Fat, protein, and total solids contents were not affected by the inclusion of M. Cows that were fed CE had greater NEFA concentrations prepartum (P < 0.01) but lower NEFA postpartum (P = 0.05). The inclusion of M during the DP did not affect prepartum or postpartum NEFA and BHBA concentrations. Concentrations of total lipid, triglyceride, and glycogen in liver of mature cows were not affected by treatments. . Feeding a diet of higher dietary energy density for 21 d before calving did not benefit production or metabolism. The CU treatment increased milk fat content, but it was probably due to the higher NEFA concentration. The inclusion of M in the DP increased yields of milk fat, lactose, total solids, and FCM.
Advisors/Committee Members: Drackley, James K. (advisor).
Subjects/Keywords: monensin; prepartum dietary energy; metabolism
…retained placenta
(Waltner et al., 1993).
MONENSIN
As discussed already, energy balance… …Petersson-Wolfe et al., 2007). Monensin (M), an ionophore, is a carboxylic… …polyether that is produced naturally from a Streptomyces cinnamonensis strain. Monensin alters the… …2009). In addition, by increasing propionate production monensin reduces methane… …2.5%. Monensin also decreased fat content by 0.13% but did not decrease milk fat yield…
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Vasquez, J. (2013). Effects of close-up dietary energy strategy and prepartal dietary monensin on production and metabolism in Holstein cows. (Thesis). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/42237
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Vasquez, Joel. “Effects of close-up dietary energy strategy and prepartal dietary monensin on production and metabolism in Holstein cows.” 2013. Thesis, University of Illinois – Urbana-Champaign. Accessed April 13, 2021.
http://hdl.handle.net/2142/42237.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Vasquez, Joel. “Effects of close-up dietary energy strategy and prepartal dietary monensin on production and metabolism in Holstein cows.” 2013. Web. 13 Apr 2021.
Vancouver:
Vasquez J. Effects of close-up dietary energy strategy and prepartal dietary monensin on production and metabolism in Holstein cows. [Internet] [Thesis]. University of Illinois – Urbana-Champaign; 2013. [cited 2021 Apr 13].
Available from: http://hdl.handle.net/2142/42237.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Vasquez J. Effects of close-up dietary energy strategy and prepartal dietary monensin on production and metabolism in Holstein cows. [Thesis]. University of Illinois – Urbana-Champaign; 2013. Available from: http://hdl.handle.net/2142/42237
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Georgia
22.
Wiggins, Latoya Tameshi.
Relationship of Listeria monocytogenes resistance to nisin and ionophore antibiotics.
Degree: 2014, University of Georgia
URL: http://hdl.handle.net/10724/25358
► Concerns over Listeria monocytogenes and its antimicrobial resistance are increasing for the food industry. Twenty isolates of L. monocytogenes were evaluated in this study for…
(more)
▼ Concerns over Listeria monocytogenes and its antimicrobial resistance are increasing for the food industry. Twenty isolates of L. monocytogenes were evaluated in this study for their resistance to three membrane perturbing antimicrobials -
nisin, monensin, and gramicidin. Isolate ILSI NA 39, with similar susceptibilities to each antimicrobial, was further studied. The relationship of induced resistance to the other antimicrobials’ activity was determined by comparing growth of wild type
and resistant strains in the presence of each antimicrobial at 10 °C. Gramicidin manifested the lowest MIC against wild type and resistant ILSI NA 39 strains. Monensin was effective in agar MIC studies but not in broth studies. A slight genetic alteration
(indicated by PFGE analysis) appeared in nisin resistant strains, while membrane protein differences (indicated by SDS-PAGE) occurred in gramicidin resistant strains. Further genomic, proteomic and lipid membrane studies are required to further describe
relationships of the strains to the three antimicrobials.
Subjects/Keywords: Listeria monocytogenes; antimicrobial resistance; nisin; monensin; gramicidin; susceptibility; MIC; PFGE; SDS-PAGE
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MLA ·
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APA (6th Edition):
Wiggins, L. T. (2014). Relationship of Listeria monocytogenes resistance to nisin and ionophore antibiotics. (Thesis). University of Georgia. Retrieved from http://hdl.handle.net/10724/25358
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Wiggins, Latoya Tameshi. “Relationship of Listeria monocytogenes resistance to nisin and ionophore antibiotics.” 2014. Thesis, University of Georgia. Accessed April 13, 2021.
http://hdl.handle.net/10724/25358.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Wiggins, Latoya Tameshi. “Relationship of Listeria monocytogenes resistance to nisin and ionophore antibiotics.” 2014. Web. 13 Apr 2021.
Vancouver:
Wiggins LT. Relationship of Listeria monocytogenes resistance to nisin and ionophore antibiotics. [Internet] [Thesis]. University of Georgia; 2014. [cited 2021 Apr 13].
Available from: http://hdl.handle.net/10724/25358.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Wiggins LT. Relationship of Listeria monocytogenes resistance to nisin and ionophore antibiotics. [Thesis]. University of Georgia; 2014. Available from: http://hdl.handle.net/10724/25358
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Kentucky
23.
Wingard, Sheryl.
EFFECT OF DIRECT-FED MICROBIALS AND MONENSIN ON IN VITRO RUMEN FERMENTATION.
Degree: 2014, University of Kentucky
URL: https://uknowledge.uky.edu/animalsci_etds/42
► The impact of supplying a mixed culture of lactate producing bacteria on in-vitro rumen fermentation of forage- (Experiment 1) and concentrate- (Experiment 2) based diets…
(more)
▼ The impact of supplying a mixed culture of lactate producing bacteria on in-vitro rumen fermentation of forage- (Experiment 1) and concentrate- (Experiment 2) based diets in the presence and absence of monensin was explored. In experiment 1, interactions between DFM and MON were absent (P>0.10) for gas production and fermentative end products. Gas production and fermentative end products were unaffected by DFM alone (P>0.10). Monensin decreased (P<0.001) CH4 and NH3 production, rate and total gas production, as well as total VFA concentration and molar proportions of acetate and butyrate. However, MON increased (P<0.001) proportions of propionate, valerate, isobutyrate and isovalerate. Independently, DFM and MON increased (P<0.001) end point pH. In experiment 2, DFM x MON interactions or tendencies (P=0.07, P<0.01, P<0.01) were present, DFM effects were abated by MON, for rate, total gas production and total VFA concentrations. Acetate:propionate ratio was decreased (P<0.01) with MON and was unaffected by DFM. Ammonia-N concentration was increased (P<0.01) by DFM and unaffected (P=0.75) by MON. Both DFM and MON treatment increased (P<0.01) ruminal pH levels. These studies suggest the effects of DFM and MON of in-vitro fermentation are dependent on the substrate being fermented and the observed interactions provide means for further research.
Subjects/Keywords: Direct-fed microbial; monensin; rumen fermentation; forage-based diet; concentrate-based diet; Other Animal Sciences
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
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APA (6th Edition):
Wingard, S. (2014). EFFECT OF DIRECT-FED MICROBIALS AND MONENSIN ON IN VITRO RUMEN FERMENTATION. (Masters Thesis). University of Kentucky. Retrieved from https://uknowledge.uky.edu/animalsci_etds/42
Chicago Manual of Style (16th Edition):
Wingard, Sheryl. “EFFECT OF DIRECT-FED MICROBIALS AND MONENSIN ON IN VITRO RUMEN FERMENTATION.” 2014. Masters Thesis, University of Kentucky. Accessed April 13, 2021.
https://uknowledge.uky.edu/animalsci_etds/42.
MLA Handbook (7th Edition):
Wingard, Sheryl. “EFFECT OF DIRECT-FED MICROBIALS AND MONENSIN ON IN VITRO RUMEN FERMENTATION.” 2014. Web. 13 Apr 2021.
Vancouver:
Wingard S. EFFECT OF DIRECT-FED MICROBIALS AND MONENSIN ON IN VITRO RUMEN FERMENTATION. [Internet] [Masters thesis]. University of Kentucky; 2014. [cited 2021 Apr 13].
Available from: https://uknowledge.uky.edu/animalsci_etds/42.
Council of Science Editors:
Wingard S. EFFECT OF DIRECT-FED MICROBIALS AND MONENSIN ON IN VITRO RUMEN FERMENTATION. [Masters Thesis]. University of Kentucky; 2014. Available from: https://uknowledge.uky.edu/animalsci_etds/42

University of Kentucky
24.
Mimiko, Jasmyn.
RELATIONSHIPS BETWEEN BEHAVIORAL MEASURES AND PRODUCTIVITY IN FINISHING BEEF CATTLE.
Degree: 2016, University of Kentucky
URL: https://uknowledge.uky.edu/animalsci_etds/65
► The relationship between measures of temperament, growth performance, and social hierarchy in finishing beef cattle were explored in two experiments. In experiment 1, high OCS…
(more)
▼ The relationship between measures of temperament, growth performance, and social hierarchy in finishing beef cattle were explored in two experiments. In experiment 1, high OCS (objective chute score) steers had periods of significantly higher ADG (P < 0.01), but OCS had no relationship with dominance ranking (P > 0.47). Conversely, slow exit velocity (EV) correlated with higher ranking (P ≤ 0.06), but EV had no relationship with performance (P > 0.37) in a competitive environment. Rank showed no relationship with performance (P > .58). In experiment 2, steers with fast EV had periods of decreased growth (P ≤ .06), intake (P ≤ .06), and gain:feed (G:F; P = 0.02). There were no interactions between EV, OCS, and monensin or between EV and monensin. Monensin and EV together, however, significantly impacted overall (days 0 – end) G:F (P = 0.02) and gain (P = 0.05). Overall, these studies further confirm the idea that EV affects performance as does OCS in concert with monensin. Moreover, it further confirms that different measures of temperament correlated to different aspects of performance and should not be lumped together under the general term “temperament” when describing its relationship with performance.
Subjects/Keywords: Temperament; Gut Microbiota; Monensin; Beef Cattle; Social Hierarchy; Other Animal Sciences; Other Nutrition
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APA ·
Chicago ·
MLA ·
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CSE |
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to Zotero / EndNote / Reference
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APA (6th Edition):
Mimiko, J. (2016). RELATIONSHIPS BETWEEN BEHAVIORAL MEASURES AND PRODUCTIVITY IN FINISHING BEEF CATTLE. (Masters Thesis). University of Kentucky. Retrieved from https://uknowledge.uky.edu/animalsci_etds/65
Chicago Manual of Style (16th Edition):
Mimiko, Jasmyn. “RELATIONSHIPS BETWEEN BEHAVIORAL MEASURES AND PRODUCTIVITY IN FINISHING BEEF CATTLE.” 2016. Masters Thesis, University of Kentucky. Accessed April 13, 2021.
https://uknowledge.uky.edu/animalsci_etds/65.
MLA Handbook (7th Edition):
Mimiko, Jasmyn. “RELATIONSHIPS BETWEEN BEHAVIORAL MEASURES AND PRODUCTIVITY IN FINISHING BEEF CATTLE.” 2016. Web. 13 Apr 2021.
Vancouver:
Mimiko J. RELATIONSHIPS BETWEEN BEHAVIORAL MEASURES AND PRODUCTIVITY IN FINISHING BEEF CATTLE. [Internet] [Masters thesis]. University of Kentucky; 2016. [cited 2021 Apr 13].
Available from: https://uknowledge.uky.edu/animalsci_etds/65.
Council of Science Editors:
Mimiko J. RELATIONSHIPS BETWEEN BEHAVIORAL MEASURES AND PRODUCTIVITY IN FINISHING BEEF CATTLE. [Masters Thesis]. University of Kentucky; 2016. Available from: https://uknowledge.uky.edu/animalsci_etds/65
25.
Moreira, Kíria Karolline Gomes.
Aditivos fitogênicos na terminação de tourinhos nelore confinados.
Degree: 2018, Universidade Federal de Goiás; Programa de Pós-graduação em Zootecnia (EVZ); UFG; Brasil; Escola de Veterinária e Zootecnia – EVZ (RG)
URL: http://repositorio.bc.ufg.br/tede/handle/tede/8773
► Submitted by Liliane Ferreira ([email protected]) on 2018-08-08T13:37:44Z No. of bitstreams: 2 Tese - Kíria Karolline Gomes Moreira - 2018.pdf: 845151 bytes, checksum: 2ad2cdb82fbc13144dced7708c515c5b (MD5) license_rdf:…
(more)
▼ Submitted by Liliane Ferreira ([email protected]) on 2018-08-08T13:37:44Z No. of bitstreams: 2 Tese - Kíria Karolline Gomes Moreira - 2018.pdf: 845151 bytes, checksum: 2ad2cdb82fbc13144dced7708c515c5b (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)
Approved for entry into archive by Luciana Ferreira ([email protected]) on 2018-08-09T11:50:53Z (GMT) No. of bitstreams: 2 Tese - Kíria Karolline Gomes Moreira - 2018.pdf: 845151 bytes, checksum: 2ad2cdb82fbc13144dced7708c515c5b (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)
Made available in DSpace on 2018-08-09T11:50:53Z (GMT). No. of bitstreams: 2 Tese - Kíria Karolline Gomes Moreira - 2018.pdf: 845151 bytes, checksum: 2ad2cdb82fbc13144dced7708c515c5b (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2018-07-13
Phytogenic additives with action similar to ionophores can be used as
alternatives to synthetic additives. Two experiments were carried out to evaluate the effects of phytogenic antimicrobial additives on performance, carcass characteristics, nutrient digestibility and ruminal metabolic profile of Nellore bulls feedlot. In the first experiment, 114 Nellore steers (335.48 ± 25.70 kg) were assigned to a randomized complete block design with 4 treatments: monensin; S. Adstrigens extract; essential oils blend; functional oils cashew, castor and copaiba on the growth performance and carcass. The diet consisted of 19.49% sugarcane bagasse and 80.51% concentrate (DM basis). DMI of animals receiving monensin (104 days feedlot) was 16.2% lower than the animals that consumed dry extract and 8.6% lower than the animals that received functional oils (P <0.001). Animals that consumed dry extract of S. adstrigens showed higher consumption of NDF (P <0.001). FBW (μ = 485.60 kg) and ADG (μ = 1.42 kg/d) were not affected by treatments (P>0.05).
FE was better (P <0.05) for MON (0.184 kg/kg) than BBT and MOE. There was no difference (P>0.05) for carcass characteristics. The use of phytogenic additives in feed of confined cattle did not influence the carcass characteristics, but the use of monensin still provides better performance results. In the second experiment, was to evaluate the characteristics of ruminal fermentation and digestibility of nutrients of a finishing diet with phytogenic additives. Five fistulated steers (initial BW = 275.40 ± 15.53 kg) were used in a 5 × 5 Latin Square design. Treatments were: no additive; monensin 30 mg/kg DM; extract of S. adstrigens 1.500 mg/kg DM; mixture of essential oils 118 mg/kg DM; mixture of functional oils from cashew, castor, and copaiba 250 mg/kg DM. The diet consisted on DM basis of 19.49% of sugarcane bagasse and 80.51% of concentrate with corn, soybean meal, urea and minerals. There were no effects (P>0.05) on nutrients intake, apparent digestibility
concentration of VF, acetate:propionate ratio and concentration of NH3-N. Steers fed mixture of functional oils showed higher ruminal pH (6,75) than BBT (6,54; P…
Advisors/Committee Members: Padua, João Teodoro, Fernandes, Juliano José de Resende, Bilego, Ubirajara Oliveira, Neves Neto, José Tiago das, Silva, Maurícia Brandão da, Miyagi, Eliane Sayuri, Padua, João Teodoro.
Subjects/Keywords: Barbatimão; Extrato de plantas; Monensina; Nelore; Monensin; Nellore; Plants extracts; Tannins; CIENCIAS AGRARIAS::ZOOTECNIA
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Moreira, K. K. G. (2018). Aditivos fitogênicos na terminação de tourinhos nelore confinados. (Doctoral Dissertation). Universidade Federal de Goiás; Programa de Pós-graduação em Zootecnia (EVZ); UFG; Brasil; Escola de Veterinária e Zootecnia – EVZ (RG). Retrieved from http://repositorio.bc.ufg.br/tede/handle/tede/8773
Chicago Manual of Style (16th Edition):
Moreira, Kíria Karolline Gomes. “Aditivos fitogênicos na terminação de tourinhos nelore confinados.” 2018. Doctoral Dissertation, Universidade Federal de Goiás; Programa de Pós-graduação em Zootecnia (EVZ); UFG; Brasil; Escola de Veterinária e Zootecnia – EVZ (RG). Accessed April 13, 2021.
http://repositorio.bc.ufg.br/tede/handle/tede/8773.
MLA Handbook (7th Edition):
Moreira, Kíria Karolline Gomes. “Aditivos fitogênicos na terminação de tourinhos nelore confinados.” 2018. Web. 13 Apr 2021.
Vancouver:
Moreira KKG. Aditivos fitogênicos na terminação de tourinhos nelore confinados. [Internet] [Doctoral dissertation]. Universidade Federal de Goiás; Programa de Pós-graduação em Zootecnia (EVZ); UFG; Brasil; Escola de Veterinária e Zootecnia – EVZ (RG); 2018. [cited 2021 Apr 13].
Available from: http://repositorio.bc.ufg.br/tede/handle/tede/8773.
Council of Science Editors:
Moreira KKG. Aditivos fitogênicos na terminação de tourinhos nelore confinados. [Doctoral Dissertation]. Universidade Federal de Goiás; Programa de Pós-graduação em Zootecnia (EVZ); UFG; Brasil; Escola de Veterinária e Zootecnia – EVZ (RG); 2018. Available from: http://repositorio.bc.ufg.br/tede/handle/tede/8773
26.
Thiago Henrique Annibale Vendramini.
Avaliação de aditivos na alimentação de vacas leiteiras.
Degree: 2015, University of São Paulo
URL: http://www.teses.usp.br/teses/disponiveis/10/10135/tde-04082015-110153/
► Objetivou-se avaliar a utilização de diferentes aditivos na alimentação de vacas em lactação sobre o consumo e digestibilidade aparente total da matéria seca e nutrientes,…
(more)
▼ Objetivou-se avaliar a utilização de diferentes aditivos na alimentação de vacas em lactação sobre o consumo e digestibilidade aparente total da matéria seca e nutrientes, fermentação ruminal, produção e composição do leite, perfil metabólico e balanço de nitrogênio. Foram utilizadas 24 vacas da raça Holandesa, sendo destas 8 canuladas no rúmen, com média de produção de leite de 31,44 ± 4,83 kg, peso corporal médio de 586,07 ± 79,63 kg e com 175,89 ± 99,74 dias de lactação no início do fornecimento das dietas experimentais. Distribuídas em seis quadrados latinos 4x4, contemporâneos e balanceados, para receber as seguintes dietas experimentais: 1) Controle (CT), composta por dieta basal sem a inclusão de aditivos; 2) Crina (CRI) (Crina® Ruminants, DSM-TORTUGA) , produto composto por uma mistura de óleos essenciais, sendo utilizado 1 g/vaca/dia; 3) Quitosana (QUI), com inclusão de quitosana na ordem de 150 mg/kg de peso vivo; 4) (MON)
(Monensina DSM-TORTUGA), com inclusão de monensina na dose 24 mg/kg de matéria seca. Não foram observadas diferenças (P<0,05) entre os tratamentos para consumo de matéria seca e nutrientes. Para digestibilidade da matéria seca e matéria orgânica a dieta QUI apresentou maiores valores (P<0,05) quando comparados a CRI. Em relação à digestibilidade da proteína bruta, a dieta com Crina foi menor (P<0,05) em relação aos demais aditivos. Não foram observadas diferenças (P<0,05) para produção e composição do leite entre as dietas experimentais. Os consumos de energia digestível e metabolizável foram maiores para os animais suplementados com quitosana em relação as dietas CO e MON. As eficiências da utilização de energia foram superiores para CO em relação a dieta com quitosana. A inclusão de monensina aumentou o colesterol total sérico em comparação a dieta controle. A excreção de nitrogênio fecal (g/dia), foi menor para CRI em relação aos demais aditivos,
para % nitrogênio fecal total foi observada redução em relação a dieta com a adição de quitosana apenas. O balanço de nitrogênio em (g/dia) este foi maior para QUI, em relação MO. Quanto aos parâmetros fermentativos a inclusão de monensina e quitosana nas dietas reduziu a concentração de acetato (mmol/L), e a dieta CRI, aumentou ainda a concentração de propionato em mmol/L. Para a concentração de butirato, em mmol/L, a inclusão de monensina reduziu a concentração desta variável em relação à dieta controle, já os AGCR em mmol/L, todos os aditivos demonstraram efeito de redução (P<0,05), em relação à dieta controle. Para a concentração total de ácidos graxos de cadeia curta (mmol/L), as dietas com inclusão de Crina e monensina mostraram redução desta variável em relação à dieta controle. Assim, é possível concluir que quanto aos óleos essenciais (Crina Ruminants), as respostas não foram positivas para as variáveis avaliadas, possivelmente ocasionada pela intensa atividade
antimicrobiana, não seletiva apenas aos microrganismos desejados, levando a efeitos desfavoráveis, entretanto a utilização de quitosana na alimentação de vacas…
Advisors/Committee Members: Francisco Palma Rennó, Alexandre Augusto de Oliveira Gobesso, Marcus Antonio Zanetti.
Subjects/Keywords: Digestibilidade; Monensina; Óleos Essenciais; Quitosana; Rúmen; Chitosan; Digestibility; Essential Oils; Monensin; Rumen
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Vendramini, T. H. A. (2015). Avaliação de aditivos na alimentação de vacas leiteiras. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/10/10135/tde-04082015-110153/
Chicago Manual of Style (16th Edition):
Vendramini, Thiago Henrique Annibale. “Avaliação de aditivos na alimentação de vacas leiteiras.” 2015. Masters Thesis, University of São Paulo. Accessed April 13, 2021.
http://www.teses.usp.br/teses/disponiveis/10/10135/tde-04082015-110153/.
MLA Handbook (7th Edition):
Vendramini, Thiago Henrique Annibale. “Avaliação de aditivos na alimentação de vacas leiteiras.” 2015. Web. 13 Apr 2021.
Vancouver:
Vendramini THA. Avaliação de aditivos na alimentação de vacas leiteiras. [Internet] [Masters thesis]. University of São Paulo; 2015. [cited 2021 Apr 13].
Available from: http://www.teses.usp.br/teses/disponiveis/10/10135/tde-04082015-110153/.
Council of Science Editors:
Vendramini THA. Avaliação de aditivos na alimentação de vacas leiteiras. [Masters Thesis]. University of São Paulo; 2015. Available from: http://www.teses.usp.br/teses/disponiveis/10/10135/tde-04082015-110153/
27.
Francisco Leonardo Costa de Oliveira.
Avaliação comparativa de diferentes aditivos na prevenção da acidose láctica ruminal em bovinos de corte.
Degree: 2018, University of São Paulo
URL: http://www.teses.usp.br/teses/disponiveis/10/10136/tde-28092018-145629/
► Objetivou-se compreender melhor o modelo de indução de acidose láctica ruminal (ALR) com sacarose destacando-se aspectos básicos da fermentação ruminal e suas consequências, assim como…
(more)
▼ Objetivou-se compreender melhor o modelo de indução de acidose láctica ruminal (ALR) com sacarose destacando-se aspectos básicos da fermentação ruminal e suas consequências, assim como avaliação comparativa da eficácia de dois aditivos (Virginiamicina VM e Monensina MON), associados ou não, na prevenção desta enfermidade em bovinos adultos de corte. Para tal, foram utilizados 30 fêmeas da raça Nelore, providas de cânula ruminal, com cerca de 413 kg de peso corpóreo. Os animais foram mantidos em baias individuais e alimentados com dieta basal composta de 75% de feno de capim de coast-cross e de 25% de ração concentrada comercial, por 30 dias antes da indução de ALR. Durante esse período os bovinos foram distribuídos em cinco grupos iguais de seis animais cada, assim constituídos: controle (CON); MON 30 ppm; VM 25 ppm; VM 34 ppm e MON 30 ppm + VM 25 ppm. Os aditivos foram administrados numa mistura de 500 g fubá, antes do oferecimento do alimento. Em
seguida, foi realizada indução individual de ALR com uso de sacarose de acordo com peso metabólico corrigido, administrada pela cânula ruminal. Foram obtidas amostras de conteúdo ruminal, sangue, urina e fezes, assim como realizado exame físico nos seguintes momentos: zero (basal) e após três, seis, 12 e 18 horas da indução. Foi realizada análise de variância (Teste F) dos dados que obedeceram à distribuição paramétrica, e utilizado o comando Proc mix para medidas repetidas no tempo de duas vias considerando os fatores tratamento, tempo e interação entre tratamento e tempo. Alguns dados foram submetidos ao teste T de Student. Os dados que não obedeceram a distribuição paramétrica foram avaliados pelos testes de Kruskal-Wallis e qui-quadrado. Para o estudo da relação entre duas variáveis foi determinado os índices de correlação e determinação. Ocorreu acidose ruminal intensa, por grande produção inicial de ácidos graxos de cadeia curta (AGCC), seguido de ácido láctico, com predomínio
do isômero L sobre o D, os quais com a glicose gerada na fermentação provocaram aumento de osmolaridade nesse conteúdo. A acidose sistêmica foi de grau moderado em pequena parte dos bovinos, com presença de desidratação num expressivo número de animais. Boa parte dos bovinos tratados (n =15) apresentavam depressão nervosa e desidratação. Ocorreu pontualmente um quadro de hipertermia no auge da fermentação ruminal. Os melhores resultados preventivos da ALR foram obtidos com a associação VM + MON, a qual postergou a produção de ácido láctico, quer seja pela menor produção deste, como pela conversão de ácido láctico L em ácidos acético e propiônico. Ao término do experimento essa associação promoveu maior pH e menor acúmulo de ácido láctico L, assim como viabilizou que um menor número de animais necessitassem ser tratados, em relação ao grupo controle. As duas diferentes doses de VM tiveram resultados intermediários, seguidos da MON, a qual não se recomenda como único aditivo com fins
de prevenção da ALR.
The objective was to better understand the induction model of rumen lactic…
Advisors/Committee Members: Enrico Lippi Ortolani, Raimundo Alves Barreto Junior, Marta Ines Miranda Castañón, Rejane dos Santos Sousa, Maria Claudia Araripe Sucupira.
Subjects/Keywords: Ácido láctico; Monensina; Nelore; Sacarose; Virginiamicina; Lactic acid; Monensin; Nellore; Sucrose; Virginiamycin
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Oliveira, F. L. C. d. (2018). Avaliação comparativa de diferentes aditivos na prevenção da acidose láctica ruminal em bovinos de corte. (Doctoral Dissertation). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/10/10136/tde-28092018-145629/
Chicago Manual of Style (16th Edition):
Oliveira, Francisco Leonardo Costa de. “Avaliação comparativa de diferentes aditivos na prevenção da acidose láctica ruminal em bovinos de corte.” 2018. Doctoral Dissertation, University of São Paulo. Accessed April 13, 2021.
http://www.teses.usp.br/teses/disponiveis/10/10136/tde-28092018-145629/.
MLA Handbook (7th Edition):
Oliveira, Francisco Leonardo Costa de. “Avaliação comparativa de diferentes aditivos na prevenção da acidose láctica ruminal em bovinos de corte.” 2018. Web. 13 Apr 2021.
Vancouver:
Oliveira FLCd. Avaliação comparativa de diferentes aditivos na prevenção da acidose láctica ruminal em bovinos de corte. [Internet] [Doctoral dissertation]. University of São Paulo; 2018. [cited 2021 Apr 13].
Available from: http://www.teses.usp.br/teses/disponiveis/10/10136/tde-28092018-145629/.
Council of Science Editors:
Oliveira FLCd. Avaliação comparativa de diferentes aditivos na prevenção da acidose láctica ruminal em bovinos de corte. [Doctoral Dissertation]. University of São Paulo; 2018. Available from: http://www.teses.usp.br/teses/disponiveis/10/10136/tde-28092018-145629/
28.
Roger Tito Abal.
Desempenho de novilhos Nelore em pastagem suplementados com diferentes aditivos.
Degree: 2016, University of São Paulo
URL: http://www.teses.usp.br/teses/disponiveis/74/74131/tde-23022017-104000/
► O objetivo do trabalho foi avaliar o desempenho de novilhos Nelore mantidos em pastagem de Brachiaria decumbens, suplementados com três tipos de aditivos, usados como…
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▼ O objetivo do trabalho foi avaliar o desempenho de novilhos Nelore mantidos em pastagem de Brachiaria decumbens, suplementados com três tipos de aditivos, usados como promotores de crescimento na época das águas, durante 112 dias. Foram utilizados 60 bezerros da raça Nelore, com 12 meses de idade e 259,2 ± 10,68 kg de peso corporal médio. O delineamento experimental foi inteiramente casualizado, com quatro tratamentos (15 animais cada): controle (mistura mineral), mistura mineral com monensina (1.000 mg kg-1), mistura mineral com salinomicina (1.111 mg kg-1) e mistura mineral com flavomicina (333 mg kg-1). Os animais foram divididos em quatro piquetes de Brachiaria decumbens (com 6,7 ha) e submetidos a rodízios semanais. Foram avaliados consumo de suplemento, composição do pasto, desempenho e análise econômica. Os dados foram analisados pelo PROC GLM do SAS (2009) e as médias comparadas pelo teste de Tukey a 5% de significância. O
consumo de suplemento mineral dos tratamentos com salinomicina e monensina foram menores em 27,5 e 38,8 %, respectivamente, em relação ao tratamento controle (P <0,01). Não houve diferença no ganho de peso dos animais que receberam aditivos e esses foram maiores que o tratamento controle (P <0,01). A suplementação mineral com monensina, salinomicina e flavomicina apresentou menor custo por arroba produzida em referência ao controle de 53,5; 42,1 e 18,3%, respectivamente. A eficiência do suplemento com flavomicina, salinomicina e monensina foi 56,1%; 88,2% e 142,3% maior em relação ao controle respectivamente. Foi concluído que a adição de monensina, salinomicina e flavomicina no suplemento mineral de bovinos Nelore, em pastagem de Brachiaria decumbens na época das águas, melhora o desempenho dos animais e aumentou o retorno econômico.
The objective of this research was to evaluate the performance of Nellore steers grazing on Brachiaria decumbens, supplemented with
three types of additives used as growth promoters in the rainy season for 112 days. The total of 60 Nellore calves with 12 months and 259.2 ± 10.68 kg of body weight were divided randomly in four treatments (15 animals each one): control (mineral supplement mixture), mineral supplement with monensin (1000 mg kg-1), mineral supplement with salinomycin (1111 mg kg-1) and mineral supplement with flavomycin (333 mg kg-1). The animals were divided into four paddocks of Brachiaria decumbens (with 6.7 ha) and subjected to weekly rotation. It was evaluated the supplement intake, pasture composition, performance and economic analysis. Experimental data were analyzed using PROC GLM of SAS (2009) and the means was compared by Tukey test at 5% significance. The consumption of mineral supplement of the treatments with monensin and salinomycin were 27,5 % and 38,8 %, respectively, lower than the control (p <0,01). There was no difference in weight gain of the animals supplemented
with additives but their gain was higher than the control treatment (P <0.01). The mineral supplementation with monensin,…
Advisors/Committee Members: Marcus Antonio Zanetti, Paulo Roberto Leme, Luis Felipe Prada e Silva.
Subjects/Keywords: Bovinos de corte; Flavomicina; Monensina; Salinomicina; Suplementação mineral; Beef cattle; Flavomycin; Mineral supplementation; Monensin; Salinomycin
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MLA ·
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CSE |
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APA (6th Edition):
Abal, R. T. (2016). Desempenho de novilhos Nelore em pastagem suplementados com diferentes aditivos. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/74/74131/tde-23022017-104000/
Chicago Manual of Style (16th Edition):
Abal, Roger Tito. “Desempenho de novilhos Nelore em pastagem suplementados com diferentes aditivos.” 2016. Masters Thesis, University of São Paulo. Accessed April 13, 2021.
http://www.teses.usp.br/teses/disponiveis/74/74131/tde-23022017-104000/.
MLA Handbook (7th Edition):
Abal, Roger Tito. “Desempenho de novilhos Nelore em pastagem suplementados com diferentes aditivos.” 2016. Web. 13 Apr 2021.
Vancouver:
Abal RT. Desempenho de novilhos Nelore em pastagem suplementados com diferentes aditivos. [Internet] [Masters thesis]. University of São Paulo; 2016. [cited 2021 Apr 13].
Available from: http://www.teses.usp.br/teses/disponiveis/74/74131/tde-23022017-104000/.
Council of Science Editors:
Abal RT. Desempenho de novilhos Nelore em pastagem suplementados com diferentes aditivos. [Masters Thesis]. University of São Paulo; 2016. Available from: http://www.teses.usp.br/teses/disponiveis/74/74131/tde-23022017-104000/
29.
Flavio Perna Junior.
Efeito de aditivos alimentares sobre a produção de metano ruminal utilizando a técnica de fermentação ruminal ex situ (micro-rúmen), digestibilidade aparente total e excreção de nutrientes em bovinos.
Degree: 2013, University of São Paulo
URL: http://www.teses.usp.br/teses/disponiveis/10/10135/tde-21032014-114008/
► Problemática mundial levantada nas últimas duas décadas, a geração de gases de efeito estufa (GEE) tem parte devida à emissão de metano por ruminantes. O…
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▼ Problemática mundial levantada nas últimas duas décadas, a geração de gases de efeito estufa (GEE) tem parte devida à emissão de metano por ruminantes. O metano, um potente GEE, é produto final do processo fermentativo de bovinos e, por constituir perda no potencial produtivo destes, tem sido objeto de estudo por nutricionistas do mundo todo. Na busca por estratégias para diminuírem essas perdas, diferentes dietas, aditivos e manejos nutricionais têm sido empregados. Portanto, o objetivo deste trabalho foi avaliar o efeito dos aditivos alimentares, monensina ou tanino, sobre a produção de metano ruminal em bovinos, utilizando-se a técnica de fermentação ruminal ex situ (micro-rúmen), e sobre os parâmetros da fermentação ruminal, a digestibilidade aparente total e a excreção de nutrientes da dieta. Seis vacas (873 ± 81 kg) canuladas no rúmen foram utilizadas e distribuídas a três dietas, que diferiram quanto ao aditivo utilizado, seguindo-se
delineamento experimental em quadrado latino 3x3 replicado (n= 18 unidades experimentais): Controle (CON): sem aditivo; Monensina (MON): adição de 300 mg de monensina sódica por animal por dia; Tanino (TAN): adição de 100 g de extrato concentrado de tanino condensado obtido da Acácia-negra (Acacia mearnsii) por animal por dia. Cada período experimental foi constituído de 21 dias, sendo que, entre o dia 5 e o dia 15, 2 g do marcador óxido crômico por kg de MS de alimento consumido foi administrado via cânula ruminal, para determinação da digestibilidade aparente total da MS e suas frações, bem como da excreção dos nutrientes da dieta. O ensaio de digestibilidade foi constituído por duas fases, sendo os cinco primeiros dias para adaptação ao marcador e os cinco últimos para coleta de fezes. A excreção da MS e dos nutrientes, bem como a excreção de nitrogênio, foi calculada a partir dos dados de coeficiente de digestibilidade da MS e suas frações. Para cada período experimental, os
últimos 6 dias foram destinados para coleta de dados do consumo de matéria seca (CMS). No dia 21 coletou-se líquido ruminal, antes, 3, 6, 9 e 12 h após a alimentação matinal, para determinação da concentração de ácidos graxos de cadeia curta (AGCC) e metano (CH4). As concentrações de CH4 e AGCC foram determinadas por cromatografia gasosa. O pH ruminal foi mensurado por um dispositivo contínuo de mensuração, durante 24 horas no 21º dia de cada período experimental. A técnica de fermentação ex situ consiste em incubar frascos tipo penicilina com conteúdo ruminal sólido e líquido, em banho termostático por 30 minutos, com posterior mensuração da produção de metano por cromatografia gasosa, sendo estimada a perda de energia relativa (PER). A PER avalia a eficiência da fermentação dos alimentos, ou seja, verifica a perda de metano quando comparada aos outros produtos da fermentação, tais como, acído acético, propiônico e butírico. Os dados foram analisados pelo programa SAS (Versão 9.2,
2010) através do procedimento MIXED. No modelo, o efeito de tratamento foi considerado fixo e os efeitos de período, quadrado…
Advisors/Committee Members: Paulo Henrique Mazza Rodrigues, Alexandre Berndt, Carolina Tobias Marino.
Subjects/Keywords: Digestão; Gases de efeito estufa; Monensina; Ruminantes; Tanino; Digestion; Greenhouse gases; Monensin; Ruminants; Tannin
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Junior, F. P. (2013). Efeito de aditivos alimentares sobre a produção de metano ruminal utilizando a técnica de fermentação ruminal ex situ (micro-rúmen), digestibilidade aparente total e excreção de nutrientes em bovinos. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/10/10135/tde-21032014-114008/
Chicago Manual of Style (16th Edition):
Junior, Flavio Perna. “Efeito de aditivos alimentares sobre a produção de metano ruminal utilizando a técnica de fermentação ruminal ex situ (micro-rúmen), digestibilidade aparente total e excreção de nutrientes em bovinos.” 2013. Masters Thesis, University of São Paulo. Accessed April 13, 2021.
http://www.teses.usp.br/teses/disponiveis/10/10135/tde-21032014-114008/.
MLA Handbook (7th Edition):
Junior, Flavio Perna. “Efeito de aditivos alimentares sobre a produção de metano ruminal utilizando a técnica de fermentação ruminal ex situ (micro-rúmen), digestibilidade aparente total e excreção de nutrientes em bovinos.” 2013. Web. 13 Apr 2021.
Vancouver:
Junior FP. Efeito de aditivos alimentares sobre a produção de metano ruminal utilizando a técnica de fermentação ruminal ex situ (micro-rúmen), digestibilidade aparente total e excreção de nutrientes em bovinos. [Internet] [Masters thesis]. University of São Paulo; 2013. [cited 2021 Apr 13].
Available from: http://www.teses.usp.br/teses/disponiveis/10/10135/tde-21032014-114008/.
Council of Science Editors:
Junior FP. Efeito de aditivos alimentares sobre a produção de metano ruminal utilizando a técnica de fermentação ruminal ex situ (micro-rúmen), digestibilidade aparente total e excreção de nutrientes em bovinos. [Masters Thesis]. University of São Paulo; 2013. Available from: http://www.teses.usp.br/teses/disponiveis/10/10135/tde-21032014-114008/
30.
Jesus, Elmeson Ferreira de [UNESP].
Óleo funcional na dieta de vacas leiteiras.
Degree: 2015, Universidade Estadual Paulista (UNESP)
URL: http://hdl.handle.net/11449/134246
► Submitted by ELMESON FERREIRA DE JESUS null ([email protected]) on 2016-02-11T20:46:54Z No. of bitstreams: 1 Elmeson_Ferreira_de_Jesus.pdf: 1842580 bytes, checksum: c09351b7c7df05d6c24c3c4c94e0d045 (MD5)
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Approved for entry into archive by Juliano Benedito Ferreira ([email protected]) on 2016-02-12T18:56:19Z (GMT) No. of bitstreams: 1 jesus_ef_dr_jabo.pdf: 1842580 bytes, checksum: c09351b7c7df05d6c24c3c4c94e0d045 (MD5)
Made available in DSpace on 2016-02-12T18:56:19Z (GMT). No. of bitstreams: 1 jesus_ef_dr_jabo.pdf: 1842580 bytes, checksum: c09351b7c7df05d6c24c3c4c94e0d045 (MD5) Previous issue date: 15-12-11
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
O presente estudo teve como objetivo avaliar os efeitos da inclusão de óleo funcional composto de ácido anacárdico, cardol e cardanol (óleo da castanha de cajú) e ácido ricinoleico (óleo de mamona) na dieta de vacas em lactação sobre consumo,
digestibilidade aparente total da matéria seca e nutrientes, fermentação ruminal, produção e composição do leite, síntese de proteína microbiana, perfil metabólico, balanço de nitrogênio e energia. Foram utilizadas vinte e quatro vacas pluriparas da raça Holandês, das quais seis apresentavam cânula ruminal, com peso corporal médio de 618 ± 76 kg, 150,24 ± 91,43 dias em lactação e 29,1 ± 4,01 kg/dia de produção de leite no início do experimento. As vacas foram alocadas em oito Quadrados Latinos 3 x 3, balanceados e contemporâneos, alimentadas com os seguintes tratamentos: 1) controle (CON), composto por dieta basal sem inclusão de aditivos; 2) óleo funcional (OF), com adição de 500 mg/kg da MS (Essential® Oligo Basics) e 3) monensina sódica (MON) com adição de 22 mg/kg da MS. Não houve efeito (P>0,05) dos tratamentos sobre o consumo de matéria seca e nutrientes (kg/dia), coeficientes de digestibilidade e consumo em porcentagem do peso corporal. A inclusão de óleo funcional ou
monensina sódica na dieta não alterou (P>0,05) o pH, as concentrações de amônia, acetato e butirato, e a relação acetato: propionato no rúmen. No entanto, as inclusões de óleo funcional ou monensina sódica aumentaram (P<0,05) a concentração de propionato ruminal e o tratamento óleo funcional aumentou (P<0,05) a concentração total de ácidos graxos de cadeia ramificada. As vacas alimentadas com óleo funcional ou monensina sódica apresentaram aumento (P<0,05) da produção de leite, mas a inclusão de monensina sódica reduziu (P<0,05) o teor de gordura do leite. A inclusão de óleo funcional reduziu (P<0,05) a concentração de ureia no sangue. A síntese de proteína microbiana e os balanços de energia e nitrogênio não foram influenciados pelos tratamentos (P>0,05). A inclusão de óleo funcional ou monensina sódica nas dietas aumentaram a produção de leite e a concentração de propionato ruminal, sem alterar o consumo e a digestibilidade da
matéria seca e nutrientes.
This study aimed to evaluate the effects of the inclusion of functional oil composed of anacardic acid, cardol and cardanol (cashew nut shell…
Advisors/Committee Members: Universidade Estadual Paulista (UNESP), Rennó, Francisco Palma [UNESP].
Subjects/Keywords: Antimicrobiano; Dempenho produtivo; Monensina; Óleo funcional; Antimicrobial; Productive performance; Monensin; Functional oil
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Jesus, E. F. d. [. (2015). Óleo funcional na dieta de vacas leiteiras. (Doctoral Dissertation). Universidade Estadual Paulista (UNESP). Retrieved from http://hdl.handle.net/11449/134246
Chicago Manual of Style (16th Edition):
Jesus, Elmeson Ferreira de [UNESP]. “Óleo funcional na dieta de vacas leiteiras.” 2015. Doctoral Dissertation, Universidade Estadual Paulista (UNESP). Accessed April 13, 2021.
http://hdl.handle.net/11449/134246.
MLA Handbook (7th Edition):
Jesus, Elmeson Ferreira de [UNESP]. “Óleo funcional na dieta de vacas leiteiras.” 2015. Web. 13 Apr 2021.
Vancouver:
Jesus EFd[. Óleo funcional na dieta de vacas leiteiras. [Internet] [Doctoral dissertation]. Universidade Estadual Paulista (UNESP); 2015. [cited 2021 Apr 13].
Available from: http://hdl.handle.net/11449/134246.
Council of Science Editors:
Jesus EFd[. Óleo funcional na dieta de vacas leiteiras. [Doctoral Dissertation]. Universidade Estadual Paulista (UNESP); 2015. Available from: http://hdl.handle.net/11449/134246
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