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Estimation of energy and protein requirements for Korean native heifers. 1. Estimation of energy and protein requirements for Korean native heifers by metabolism trial


, : Estimation of energy and protein requirements for Korean native heifers. 1. Estimation of energy and protein requirements for Korean native heifers by metabolism trial. Korean Journal of Animal Sciences 34(5): 293-300

Native Korean heifers were fed on diets containing rice straw and concentrates to achieve target daily gains of 0.2, 0.6 and 0.8 kg (T1, T2 and T3, respectively) at 150-200, 200-250, 250-300 and 350 kg body weight. Average daily gain (DG) was 0.30 (T1), 0.62 (T2) and 0.67 kg (T3), respectively. Except for crude fibre, digestibilities and nutritive values of the diet were increased with increasing DG.

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Related references

Chung, Y.H.; Lee, S.C.; Kang, S.W.; Chung, C.S.; Chung, C.Y., 1992: Estimation of energy and protein requirements for Korean native heifers. 2. Estimation of energy and protein requirements for Korean native heifers by feeding trial. Korean native heifers about 125 to 140 kg were fed on maize-soyabean based diets differing in energy and protein contents and fed at 80, 100 or 120% of NRC recommendations, the values of which are given in a table. Body weight gain, DM intake, met...

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