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Full-Text Articles in Animal Sciences
The Effects Of Hmtba (2-Hydroxy-4-Methylthio-Butanoic Acid) Supplementation On Ruminal Microbial Crude Protein Synthesis And Community Structure In Dairy Cattle, Chad J. R. Jenkins
The Effects Of Hmtba (2-Hydroxy-4-Methylthio-Butanoic Acid) Supplementation On Ruminal Microbial Crude Protein Synthesis And Community Structure In Dairy Cattle, Chad J. R. Jenkins
Department of Animal Science: Dissertations, Theses, and Student Research
Metabolizable protein (MP) is protein that reaches the small intestine and is available for absorption and utilization by the cow. Dairy rations may be limited in the supply of MP essential to meeting the demands of milk synthesis, however as much as half of the MP flowing to the small intestine may be attributed to microbial origins and is referred to as microbial CP (MCP). Experiment 1 utilized a technique in which DNA was used as a microbial marker to estimate the concentration of bacterial CP (BCP) in the solid and liquid portions of rumen digesta. Rumen digesta was sampled …
Choline And Choline Metabolite Patterns And Associations In Blood And Milk During Lactation In Dairy Cows, Virginia M. Artegoitia, Jesse L. Foote, Federico M. Harte, Shawn R. Campagna, Michael J. De Veth
Choline And Choline Metabolite Patterns And Associations In Blood And Milk During Lactation In Dairy Cows, Virginia M. Artegoitia, Jesse L. Foote, Federico M. Harte, Shawn R. Campagna, Michael J. De Veth
Department of Animal Science: Faculty Publications
Milk and dairy products are an important source of choline, a nutrient essential for human health. Infant formula derived from bovine milk contains a number of metabolic forms of choline, all contribute to the growth and development of the newborn. At present, little is known about the factors that influence the concentrations of choline metabolites in milk. The objectives of this study were to characterize and then evaluate associations for choline and its metabolites in blood and milk through the first 37 weeks of lactation in the dairy cow. Milk and blood samples from twelve Holstein cows were collected in …
Energy Content Of Reduced-Fat Dried Distillers Grains And Solubles For Lactating Dairy Cows And Effects On Energy And Nitrogen Balance, Alison J. Foth
Energy Content Of Reduced-Fat Dried Distillers Grains And Solubles For Lactating Dairy Cows And Effects On Energy And Nitrogen Balance, Alison J. Foth
Department of Animal Science: Dissertations, Theses, and Student Research
Eight Holstein and 8 Jersey multiparous, lactating cows were used to complete 56 energy balances to determine the energy content of reduced-fat distillers grains and solubles (RFDDGS). A repeated switchback design was used to compare treatments with and without RFDDGS. Diets consisted of 24.2 % corn silage, 18.4 % alfalfa hay, 6.94 % brome hay with either 22.9 % rolled corn and 14.8 % soybean meal (Control), or 8.95 % rolled corn, 28.8 % RFDDGS, and 0 % soybean meal (Co-P; DM basis). The inclusion of RFDDGS did not affect (P = 0.86) DMI averaging 21.4 ± 0.53 kg …
Tracking Heat-Resistant, Sporeforming Bacteria In The Milk Chain: A Farm To Table Approach, Maricarmen Estrada Anzueto
Tracking Heat-Resistant, Sporeforming Bacteria In The Milk Chain: A Farm To Table Approach, Maricarmen Estrada Anzueto
Department of Food Science and Technology: Dissertations, Theses, and Student Research
Sporeforming bacteria (such as Bacillus and Paenibacillus spp.) can survive pasteurization conditions (Collins, 1981) and grow in pasteurized fluid milk during refrigerated storage (Huck et al., 2008; Ivy et al., 2012), causing fluid milk spoilage and limiting the further extension of fluid milk’s shelf life (Fromm and Boor, 2004; Durak et al., 2006). Moreover, Bacillus and related genera have been found in raw milk, pasteurized milk and environmental samples from dairy farms, indicating that these organisms are ubiquitous in nature and can enter the milk chain from different sources (Huck et al., 2007b; Huck et al., 2008; Ranieri and Boor, …
Nebraska Bqa: Antibiotic Use Guidelines, Rob Eirich
Nebraska Bqa: Antibiotic Use Guidelines, Rob Eirich
Nebraska Beef Quality Assurance Program
Cattlemen have demonstrated a commitment to animal health through vaccination programs developed carefully in cooperation with their veterinarian. When animals must be treated with an antibiotic after disease diagnosis, producers need to follow important antibiotic use guidelines established through the National Beef Quality Assurance (BQA) program.
Nebraska Bqa: Effective Cattle Handling, Rob Eirich
Nebraska Bqa: Effective Cattle Handling, Rob Eirich
Nebraska Beef Quality Assurance Program
Cattlemen know the importance of proper cattle handling and its effect on animal health and performance. Beef Quality Assurance has been implementing effective cattle handling (low-stress) into educational programs since its establishment in the 1980s.
Handling Cattle Through High Heat Humidity Indexes, Rob Eirich
Handling Cattle Through High Heat Humidity Indexes, Rob Eirich
Nebraska Beef Quality Assurance Program
As cattlemen enter the summer months, they need to understand and deal with heat and humidity. Consider incorporating the following practices into management plans to help reduce additional stress.
Nebraska Bqa: Handling Compromised Animals, Rob Eirich
Nebraska Bqa: Handling Compromised Animals, Rob Eirich
Nebraska Beef Quality Assurance Program
Cattle producers have long recognized the need of proper husbandry and stewardship for the animals entrusted into their care. Best livestock production practices, based on research and sound science, help ensure the well-being, animal health and productivity of cattle.
Calf Branding/Processing Time And Beef Quality Assurance, Rob Eirich
Calf Branding/Processing Time And Beef Quality Assurance, Rob Eirich
Nebraska Beef Quality Assurance Program
It is spring and that means branding time across cattle country. As producers are finishing calving season and preparing for branding/processing, it is important to review Beef Quality Assurance (BQA) guidelines. Let's take a minute to look at the key BQA principles:
Audits And Assessments In Beef Cattle Production, Rob Eirich
Audits And Assessments In Beef Cattle Production, Rob Eirich
Nebraska Beef Quality Assurance Program
Assessments and audits are becoming a part of doing business in beef cattle production, as we are seeing beef processors implementing third-party audits. Since beginning as the Nebraska Director of Beef Quality Assurance (BQA) in July, I have been studying and gathering information on the National Cattlemen's Beef Association (NCBA) Assessment Guides and third-party audits in the beef industry.
Nebraska Beef Quality Assurance: Focused On The Safety, Wholesomeness And Quality Of Beef
Nebraska Beef Quality Assurance: Focused On The Safety, Wholesomeness And Quality Of Beef
Nebraska Beef Quality Assurance Program
Across the nation, beef producers face the challenge of making a living from the land, while producing safe, wholesome beef. Beef that will provide a great eating experience each and every time for American and International consumers.