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Articles 1 - 13 of 13
Full-Text Articles in Life Sciences
Feeding Condensed Distillers Solubles To Feedlot Finishing Steers And The Effects Of Feed Additives In Adaptation Diets, Marie E. Harris
Feeding Condensed Distillers Solubles To Feedlot Finishing Steers And The Effects Of Feed Additives In Adaptation Diets, Marie E. Harris
Department of Animal Science: Dissertations, Theses, and Student Research
By-products from the dry-milling ethanol process can be used in cattle diets to replace corn. There is a significant interaction between corn processing methods as CCDS concentration increases in the diet. Improvements are observed for SFC in final BW, ADG, and G:F over DRC. An experiment was conducted to determine if greater concentrations of CCDS could be fed in SFC based diets and maintain or improve performance. Performance and carcass characteristics were evaluated with increasing concentrations of CCDS at 0, 9, 18, 27, or 36% in place of SFC in feedlot finishing diets. As CCDS concentration increased, DMI decreased quadratically. …
Beef Cattle Lesson Plans: For Use In The Education Of School-Age Children In The Beef Cattle Industry, Katherine M. Halloran, Cheyenne H. Love
Beef Cattle Lesson Plans: For Use In The Education Of School-Age Children In The Beef Cattle Industry, Katherine M. Halloran, Cheyenne H. Love
Animal Science
This project was initially created for use at Fort Hope in Arroyo Grande, California. It designs lesson plans created to teach children about the beef cattle industry. The project consists of lesson plans for three age groups: 7-9, 10-12, and 13-15. Each age group will learn various aspects about beef cattle, and lessons will increase in complexity as the children advance age groups. The groups will spend six days in lecture completing worksheets and activities, and on the seventh day, after completion of a review game, the children receive certificates. While the project was created specifically for the Fort Hope …
A Comparison Of The Standard 5-Day Co-Synch With Cidr Protocol And A 14-Day Co-Synch With Cidr Protocol In Primiparous And Multiparous Beef Cattle, Taylor Anne Dericco
A Comparison Of The Standard 5-Day Co-Synch With Cidr Protocol And A 14-Day Co-Synch With Cidr Protocol In Primiparous And Multiparous Beef Cattle, Taylor Anne Dericco
Animal Science
No abstract provided.
Uncertainties In Life Cycle Greenhouse Gas Emissions From U.S. Beef Cattle, Quentin M. Dudley, Adam Liska, Andrea K. Watson, Galen E. Erickson
Uncertainties In Life Cycle Greenhouse Gas Emissions From U.S. Beef Cattle, Quentin M. Dudley, Adam Liska, Andrea K. Watson, Galen E. Erickson
Adam Liska Papers
Beef cattle feedlots are estimated to contribute 26% of U.S. agricultural greenhouse gas (GHG) emissions, and future climate change policy could target reducing these emissions. Life cycle assessment (LCA) of GHG emissions from U.S. grain-fed beef cattle was conducted based on industry statistics and previous studies to identify the main sources of uncertainty in these estimations. Uncertainty associated with GHG emissions from indirect land use change, pasture soil emissions (e.g. soil carbon sequestration), enteric fermentation from cattle on pasture, and methane emissions from feedlot manure, respectively, contributed the most variability to life cycle GHG emissions from beef production. Feeding of …
Qtls Associated With Dry Matter Intake, Metabolic Mid-Test Weight, Growth And Feed Efficiency Have Little Overlap Across 4 Beef Cattle Studies, Mahdi Saatchi, Jonathan E. Beever, Jared E. Decker, Dan B. Faulkner, Harvey C. Freetly, Stephanie L. Hansen, Helen Yampara-Iquise, Kristen A. Johnson, Stephen D. Kachman, Monty S. Kerley, Jaewoo Kim, Daniel D. Loy, Elisa Marques, Holly L. Neibergs, E. John Pollak, Robert D. Schnabel, Christopher M. Seabury, Daniel W. Shike, W. M. Snelling, Matthew L. Spangler, Robert L. Weaber, D. J. Garrick, Jeremy F. Taylor
Qtls Associated With Dry Matter Intake, Metabolic Mid-Test Weight, Growth And Feed Efficiency Have Little Overlap Across 4 Beef Cattle Studies, Mahdi Saatchi, Jonathan E. Beever, Jared E. Decker, Dan B. Faulkner, Harvey C. Freetly, Stephanie L. Hansen, Helen Yampara-Iquise, Kristen A. Johnson, Stephen D. Kachman, Monty S. Kerley, Jaewoo Kim, Daniel D. Loy, Elisa Marques, Holly L. Neibergs, E. John Pollak, Robert D. Schnabel, Christopher M. Seabury, Daniel W. Shike, W. M. Snelling, Matthew L. Spangler, Robert L. Weaber, D. J. Garrick, Jeremy F. Taylor
Department of Animal Science: Faculty Publications
Background: The identification of genetic markers associated with complex traits that are expensive to record such as feed intake or feed efficiency would allow these traits to be included in selection programs. To identify large-effect QTL, we performed a series of genome-wide association studies and functional analyses using 50 K and 770 K SNP genotypes scored in 5,133 animals from 4 independent beef cattle populations (Cycle VII, Angus, Hereford and Simmental × Angus) with phenotypes for average daily gain, dry matter intake, metabolic mid-test body weight and residual feed intake.
Results: A total of 5, 6, 11 and 10 significant …
Effects Of Beef Production System On Animal Performance And Carcass Characteristics, C. L. Maxwell, C. R. Lopez, B. K. Wilson, B. T. Johnson, B. C. Bernhard, C. F. O'Neill, D. L. Vanoverbeke, G. G. Mafi, D. L. Step, C. J. Richards
Effects Of Beef Production System On Animal Performance And Carcass Characteristics, C. L. Maxwell, C. R. Lopez, B. K. Wilson, B. T. Johnson, B. C. Bernhard, C. F. O'Neill, D. L. Vanoverbeke, G. G. Mafi, D. L. Step, C. J. Richards
Department of Animal Science: Faculty Publications
The objective of this study was to evaluate conventional (CONV) and natural (NAT) beef production systems from annual pasture through finishing through grazing. Beef steers (n = 180, initial BW = 250 ± 19 kg) were assigned randomly to 2 treatments in the pasture phase. Steers were implanted with 40 mg of trenbolone acetate (TBA), 8 mg estradiol, and 29 mg tylosin tartrate (CONV), or received no implant (NAT). Steers on the 2 treatments grazed wheat or cereal rye for 109 d. Conventional steers had an 18.5% improvement in ADG (1.22 vs. 1.03 kg/d, P < 0.01) and a heavier final BW (385 vs. 366 kg, P < 0.01) compared with NAT steers. Following the pasture phase, steers (n = 160 steers, 5 steers/pen, 8 pens/treatment) were assigned to a 2 × 2 factorial in the feedlot phase. Production system (NAT vs. CONV) was maintained from the pasture phase, and the second factor was 7 vs. 12% low-quality roughage (DM basis, LOW vs. HIGH). During finishing, CONV steers were given 120 mg of TBA and 24 mg estradiol at processing, fed monensin and tylosin, and fed zilpaterol hydrochloride for the last 20 d of the experiment. There were no program × roughage level interactions (P > 0.07). The CONV steers ate …
Evaluating The Effect Maturity On The Intake And Digestibility Of Switchgrass Hay Consumed By Beef Steers, David H. Davis
Evaluating The Effect Maturity On The Intake And Digestibility Of Switchgrass Hay Consumed By Beef Steers, David H. Davis
Theses and Dissertations--Plant and Soil Sciences
There has been increased interest in utilizing switchgrass (Panicum virgatum) as biomass. There are several challenges to developing this industry, and these have led to the potential use of switchgrass as hay for feeding beef cattle in Kentucky. The effect of increasing maturity on crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF) and nutritive values of switchgrass hay has been well documented, but few in vivo intake and digestibility trials have been conducted to assess this effect on animal performance when feeding beef cattle. Two in vivo intake and digestibility trials were conducted in 2011 …
Impacts Of Feeding Baleage To Beef Calves During The Backgrounding Period, Rachel Morgan Martin
Impacts Of Feeding Baleage To Beef Calves During The Backgrounding Period, Rachel Morgan Martin
LSU Master's Theses
Two hundred forty beef calves (BW = 217 ± 20.6 kg) were used to evaluate performance, blood metabolites, and rumen development from feeding bermudagrass or ryegrass and rye baleage. Calves were stratified by BW, sex, and breed and assigned to one of 12 paddocks (0.40 ha each) with 4 treatment diets and fed for a 60 d backgrounding period. Diets included: early boot stage bermudagrass hay, (BERH); early boot stage ryegrass and rye baleage (ERRG); late bloom stage ryegrass and rye baleage, (LRRG); and early boot stage bermudagrass baleage, (BERB). Calves on BERH, LRRG, and BERB had free choice access …
Fatty Acid Profile In 4 Types Of Fat Depots In Polish Holstein-Friesian And Limousine × Polish Holstein-Friesian Bulls, Monika Sobczuk-Szul, Zenon Nogalski, Zofia Wielgosz-Groth, Magdalena Mochol, Arkadiusz Rzemieniewski, Paulina Pogorzelska-Przybylek, Cezary Purwin
Fatty Acid Profile In 4 Types Of Fat Depots In Polish Holstein-Friesian And Limousine × Polish Holstein-Friesian Bulls, Monika Sobczuk-Szul, Zenon Nogalski, Zofia Wielgosz-Groth, Magdalena Mochol, Arkadiusz Rzemieniewski, Paulina Pogorzelska-Przybylek, Cezary Purwin
Turkish Journal of Veterinary & Animal Sciences
The aim of this study was to determine the fatty acid profile in 4 types of fat deposits in Polish Holstein-Friesian (PHF) and Limousine × Polish Holstein-Friesian (LM × PHF) bulls. The experimental materials included samples of intramuscular, intermuscular, subcutaneous, and internal fat collected from the carcasses of 28 PHF bulls and 26 LM × PHF bulls. Determined fatty acids (FAs) were divided into saturated (SFAs) and unsaturated (UFAs) FAs, including monounsaturated (MUFAs) and polyunsaturated (PUFAs) FAs. The UFA/SFA, MUFA/SFA, PUFA/SFA, and PUFA n-6/PUFA n-3 ratios were calculated. Internal fat was characterized by the highest SFA concentrations, and subcutaneous fat …
Evaluation Of Ammoniated Wheat Straw In Receiving And Growing Diets, E. R. Schlegel, S. P. Montgomery, J. W. Waggoner, C. I. Vahl, W. R. Hollenbeck, B. E. Oleen, D. A. Blasi
Evaluation Of Ammoniated Wheat Straw In Receiving And Growing Diets, E. R. Schlegel, S. P. Montgomery, J. W. Waggoner, C. I. Vahl, W. R. Hollenbeck, B. E. Oleen, D. A. Blasi
Kansas Agricultural Experiment Station Research Reports
Drought conditions in the past have created a shortage of prairie hay and other grass hays that are used as roughage sources for growing beef diets. Ammoniated wheat straw historically has been available for purchase at a lower than prairie hay. Although some research has been conducted using ammoniated wheat straw as a feedstuff for mature cows, little information is available on the use and outcome its inclusion in beef cattle receiving and growing diets. Our objective was to compare the performance outcomes of newly arrived and growing calves fed total mixed rations containing either ammoniated wheat straw, wheat straw, …
Demonstrating Advancements In Biotechnology To Ranchers In Southern Utah: Genetic Testing, Kevin Heaton, Katelyn Peterson
Demonstrating Advancements In Biotechnology To Ranchers In Southern Utah: Genetic Testing, Kevin Heaton, Katelyn Peterson
All Current Publications
This fact sheet describes genetic testing for beef cattle to identify which animals in a herd are the most productive or least productive and make some culling decisions based on the results of the tests.
Demonstrating Advancements In Biotechnology To Ranchers In Southern Utah: Pregnancy Diagnosis, Kevin Heaton, Katelyn Peterson, Alyssa O'Toole
Demonstrating Advancements In Biotechnology To Ranchers In Southern Utah: Pregnancy Diagnosis, Kevin Heaton, Katelyn Peterson, Alyssa O'Toole
All Current Publications
This fact sheet describes how to identify pregnant heifers and cows within 28 days of breeding using the pregnancy associated glycoproteins (PAG) test.
Demonstrating Advancements In Biotechnology To Ranchers In Southern Utah: The Snap Bvd Test, Kevin Heaton, Katelyn Peterson, Alyssa O'Toole
Demonstrating Advancements In Biotechnology To Ranchers In Southern Utah: The Snap Bvd Test, Kevin Heaton, Katelyn Peterson, Alyssa O'Toole
All Current Publications
Bovine Viral Diarrhea is a contagious beef cattle virus. The Snap BVD Test can provide accurate results in 20 to 25 minutes. This fact sheet describes how to perform the test.