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Articles 1 - 11 of 11
Full-Text Articles in Animal Sciences
The Potential Influence Of Interferon-Gamma Induced Protein 10 On Early Gestation In Cattle, Peyton Spearry, Kyle Mclean, Mary A. Leach
The Potential Influence Of Interferon-Gamma Induced Protein 10 On Early Gestation In Cattle, Peyton Spearry, Kyle Mclean, Mary A. Leach
Chancellor’s Honors Program Projects
No abstract provided.
The Economics Of Milk Quality Management Practices And Milk Pricing In Simulated United States Dairy Herds, Derek Thomas Nolan
The Economics Of Milk Quality Management Practices And Milk Pricing In Simulated United States Dairy Herds, Derek Thomas Nolan
Theses and Dissertations--Animal and Food Sciences
Mastitis is considered one of the most common and costly diseases in the dairy industry. Intramammary infection status at a herd level is measured using somatic cell count (SCC). Understanding the total cost of an elevated somatic cell count can help influence dairy farmers to lower SCC and select management practices to produce higher quality milk. The first objective of our research was to determine if the cost of an elevated somatic cell count to farms can be decreased through the adoption of management practices with varying expenses. Using stochastic simulation modeling, the adoption of three differently priced management practices …
A Qualitative Research Approach To Understanding Challenges That May Inhibit Optimal Usage Of Automatic Milking Systems In Northern Utah, Jessica Christensen
A Qualitative Research Approach To Understanding Challenges That May Inhibit Optimal Usage Of Automatic Milking Systems In Northern Utah, Jessica Christensen
Undergraduate Honors Capstone Projects
Dairy robotics, i.e., Automatic Milking Systems (AMS), is a relatively new field, one that has great promise to optimize efficiency, production, and animal welfare of dairy cattle. However, despite quantitative research findings that indicate AMS success, dairy farmers still face challenges integrating AMS into their production systems. During the fall of 2018, interviews were conducted with northern Utah dairy farmers regarding their robotic systems. The respondent data was analyzed to reveal repeated problems with the robots. This analysis was then used to direct research in order to propose solutions to the farmers' AMS challenges. Conclusions were then summarized in an …
Comparing Dairy Farm Performance And Heat Stress Abatment Strategies In The United States Using Summer To Winter Ratios, Jenna M. Guinn
Comparing Dairy Farm Performance And Heat Stress Abatment Strategies In The United States Using Summer To Winter Ratios, Jenna M. Guinn
Theses and Dissertations--Animal and Food Sciences
Heat stress abatement is a challenge for producers in the United States, especially in the southern states. Dairy producers could benefit by having a simply metric to measure heat stress abatement strategies with the goal of motivating improvement in heat stress management. Managing heat stress is key to ameliorating the effects on dairy cow performance. A study was performed to explore the use of a heat stress metric called the Summer to Winter performance ratio (S:W ratio), to quantify and compare farm performance variables among regions of the United States. Summer to Winter ratios were closest to 1.0 in the …
The Effect Of Heat Stress And Essential Amino Acids On Production And Metabolism Of Lactating Dairy Cattle, Kimberly Rose Kassube
The Effect Of Heat Stress And Essential Amino Acids On Production And Metabolism Of Lactating Dairy Cattle, Kimberly Rose Kassube
Masters Theses
Heat stress (HS) causes decreases in production of lactating cattle that is only partially explained by decreases in intake. Evidence suggests that changes in energy and protein metabolism occur to cope with the impact of HS. The objective of this thesis was to determine if the effect of jugular infusion of essential amino acids (AA) ameliorated the negative effects of HS in milk production and metabolism. Twelve multiparous lactating Holstein cows were used in a crossover design to evaluate the effect of thermoneutral (THN) and HS environments along with the absence (CTL) …
Improving Feed Efficiency Through Forage Strategies For Increasing Dairy Profitability And Sustainability, Jon Patrick Pretz
Improving Feed Efficiency Through Forage Strategies For Increasing Dairy Profitability And Sustainability, Jon Patrick Pretz
Electronic Theses and Dissertations
Three studies were conducted to determine production parameters and study specific hypothesis in regard to improving feed efficiency through various forage utilization strategies with or without the inclusion of various supplemented products. The first study evaluated the supplementation of a cobalt-lactate product and its effects on fiber digestibility and milk production parameters when fed to cows consuming a 70% forage diet. Treatments included: 1) CONTROL diet containing 12.5 mg/cow/d of cobalt (carbonate carbonate) and 2) TEST diet being the same basal diet but including an additional 50 mg/cow/d of cobalt via a 1% Co-lactate product (Co-Max®). In a feeding trial …
Using Progesterone As An Indicator Of Ovarian Response To Stimulation In Cattle, Kayla Mariah Kauffman
Using Progesterone As An Indicator Of Ovarian Response To Stimulation In Cattle, Kayla Mariah Kauffman
Animal Science
No abstract provided.
Cystic Ovaries In Dairy Cattle, Lacey Morgan Rosenberg
Cystic Ovaries In Dairy Cattle, Lacey Morgan Rosenberg
Dairy Science
The objective of this literature review was to determine the potential causes and factors affecting the incidence of ovarian cysts in dairy cattle as well as to examine functionality of various preventative methods and treatments of cysts. The end product was to be a document outlining all the information available on the three different types of cysts that can develop on the bovine ovary, follicular cysts, luteal cysts, and cystic corpora lutea. The literature that was reviewed, most in the forms of research papers, articles, and reviews, came primarily from scientific journals and published books. The literature reviewed was only …
Selecting, Marketing And Rebuilding A Herd Of Genetically Superior Animals, Katherine Rector
Selecting, Marketing And Rebuilding A Herd Of Genetically Superior Animals, Katherine Rector
Dairy Science
No abstract provided.
Viability Of Alternative Genetic Improvement Strategies Using Whole Genome Selection On Commercial Dairy Operations, Levi W.M. Gassaway
Viability Of Alternative Genetic Improvement Strategies Using Whole Genome Selection On Commercial Dairy Operations, Levi W.M. Gassaway
Master's Theses
The objective of this thesis was to determine the viability of alternative genetic improvement strategies (GIS). Each alternative GIS combined the use of whole genome selection (WGS) with common reproductive methods (non-sexed semen artificial insemination (AI), sexed semen AI, embryo transfer utilizing non-sexed semen AI) that can be found on a commercial dairy operation. The viability of each GIS was determined using a discounted gene flow model, designed with parameters of a typical western dairy operation, to evaluate the following variables: reproductive method, selection intensity, accuracy of prediction and female age-class. Of the GIS investigated, a heifer-based strategy that used …
Effects Of Protein Sources With Differing Ruminal Degradation Characteristics On Nutrient Digestibilities And Flows Through Various Segments Of The Gastrointestinal Tract Of Non-Lactating Holstein Cows, Taylor Whitney Braud
LSU Master's Theses
Six non-lactating Holstein cows with ruminal and duodenal cannulas were used in a replicated 3x3 Latin square design experiment to investigate the effects of supplemental protein source on ruminal and total tract nutrient digestibility. Supplemental protein was provided from soybean meal (SBM), expeller processed soybean meal (EXP), or menhaden fish meal (FM). Basal diets consisted of (DM basis) 33% corn silage, 20% bermudagrass hay, 27% ground corn, and 2% minerals and vitamins. Supplemental protein was provided as (DM % of total diet) 18% soybean meal (SOY), 17% soybean meal and 1% fish meal (FM), or 12% soybean meal and 6% …