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Agriculture

University of Kentucky

Theses/Dissertations

2015

Equine

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Using The Indicator Amino Acid Oxidation Technique To Study Threonine Requirements In Horses Fed Different Feed Compositions, Chanhee Mok Jan 2015

Using The Indicator Amino Acid Oxidation Technique To Study Threonine Requirements In Horses Fed Different Feed Compositions, Chanhee Mok

Theses and Dissertations--Animal and Food Sciences

Threonine has been reported to be the second limiting amino acid in typical equine diets, but its actual requirement has not been determined in horses. The indicator amino acid oxidation (IAAO) method has been successfully used for evaluating amino acid metabolism and requirements in animals and humans. The objective of this research was to use the IAAO method to estimate threonine requirements in mature horses fed two different feed compositions. In the first study, 6 Thoroughbred mares (4 – 16 years old) received each of 6 levels of threonine intake in a high concentrate diet, in a randomly determined order. …