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Rumen Microbial Ecology And Rumen-Derived Fatty Acids: Determinants Of And Relationship To Dairy Cow Production Performance, Laura Marie Cersosimo
Rumen Microbial Ecology And Rumen-Derived Fatty Acids: Determinants Of And Relationship To Dairy Cow Production Performance, Laura Marie Cersosimo
Graduate College Dissertations and Theses
Rumen microbiota enable dairy cattle to breakdown fiber into useable energy for milk production. Rumen bacteria, protozoa, and fungi ferment feedstuff into volatile fatty acids (VFA), the main energy source, while methanogens utilize fermentation by-products to produce methane. Milk fat contains several bioactive rumen-derived fatty acids (FA), including odd-chain FA (OCFA) and branched-chain FA (BCFA), important for maintenance of human health. The overarching dissertation goal was to determine which factors affect rumen methanogen and protozoal community structures and their metabolism products, while defining relationships between rumen microbiota and animal performance. Results presented contribute to the goals of providing new knowledge …
Enhancing The Content Of Bioactive Fatty Acids In Bovine Milk For Human Health Promotion And Disease Prevention, Melissa Lee Bainbridge
Enhancing The Content Of Bioactive Fatty Acids In Bovine Milk For Human Health Promotion And Disease Prevention, Melissa Lee Bainbridge
Graduate College Dissertations and Theses
Consumer awareness of the link between dietary fats and health outcomes has led to increased demand for food products enriched with bioactive fatty acids (FA). Ruminant-derived fats, such as dairy fats, contribute significantly to the American diet and contain many unique beneficial FA, such as short- and medium-chain FA, n-3 FA, conjugated linoleic acids (CLA), vaccenic acid (VA), as well as odd-and branched-chain FA (OBCFA). Increasing these FA in dairy products by altering farm management practices, such as breed, lactation stage, and nutrition, may improve human health without a change to the diet. The overarching goal of this dissertation was …
Examination Of The Effects Breed And Nutrition Have On The Milk Protein Profile Produced By Lactating Dairy Cattle, Rinske Tacoma
Examination Of The Effects Breed And Nutrition Have On The Milk Protein Profile Produced By Lactating Dairy Cattle, Rinske Tacoma
Graduate College Dissertations and Theses
Milk is a highly nutritious natural product and research over the last 10 years has proven that these milk proteins not only provide a rich source of amino acids to the consumer but also contains many bioactive proteins and peptides known to exert biological activity benefitting human health. In this research, proteomic methods were first used to characterize the low abundance proteome within the skim milk fraction produced by Holstein and Jersey dairy cows maintained under the same diet, management and environmental conditions. Milk samples were collected over a seven day period from six Holstein and six Jersey dairy cows. …