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United States Department of Agriculture

Agricultural Research Service

Research Project: Determining Influence of Microbial, Feed, and Animal Factors on Efficiency of Nutrient Utilization and Performance in Lactating Dairy Cows Title: Feeding, evaluating, and controlling rumen function

Authors
item Lean, Ian -
item Golder, Helen -
item Hall, Mary Beth

Submitted to: Veterinary Clinics of North America
Publication Type: Book / Chapter
Publication Acceptance Date: April 16, 2014
Publication Date: N/A

Technical Abstract: Optimal rumen function is pivotal to health, production, and profit in dairy systems. Achieving that function requires an understanding of feeds and systems of nutritional evaluation. A key influence on optimal rumen function includes dry matter intake. The function of feeds in the rumen depends on other factors including chemical composition, rate of passage, degradation rate of the feed, availability of other substrates and co-factors, and individual animal variation. We discuss carbohydrate, protein, and fat metabolism in the rumen and provide practical means of evaluation of rations in the field. Conditions whereby rumen function is suboptimal (i.e., acidosis and bloat) are discussed, and methods for control are examined.

Last Modified: 7/22/2014
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