Estimation of dietary threonine requirement using plasma amino acid concentrations in mature thoroughbreds |
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| Authors: | Tatsuyuki Yoshida Yoshiyuki Ohta |
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| Affiliation: | Department of Animal Science, Nippon Veterinary and Life Science University, Musashino, Japan |
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| Abstract: | The experiment was conducted to estimate dietary threonine (Thr) requirement using plasma amino acid concentrations as a criterion in mature thoroughbreds. Four adult thoroughbreds were used, and a 4 × 4 Latin square design was used for four dietary Thr levels. Plasma Thr concentration was constant until 0.41%, and then increased rapidly with increasing dietary Thr levels. The Thr requirement was estimated to be 67% of lysine with plasma Thr concentration at four Thr levels. |
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| Keywords: | plasma amino acid requirement thoroughbred threonine |
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