数字农科院2.0

Effects of dietary protein levels on production performance and serum insulin-like growth factor-1 levels in sika deer

文献类型： 外文期刊

作者： Gao, Xiuhua;Yang, Fuhe;Li, Guangyu;Yang, Fuhe;Gao, Xiuhua;Li, Guangyu

作者机构：

期刊名称： ANIMAL PRODUCTION SCIENCE

ISSN： 1836-0939

年卷期： 2012 年 52 卷 8 期

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收录情况： SCI

摘要： The purpose of this study was to investigate the influence of dietary protein levels on the performance of sika deer. Twenty-four male sika deer were randomly assigned into three treatments, where they were fed a diet containing either 12, 16 or 20% crude protein (CP). During the antler growth period the average bodyweight gain in 12, 16 and 20% CP levels was 17.3, 19.9 and 14.4 kg, respectively; antler yield was 2224, 2518 and 2246 g, respectively. A significant positive relationship (P < 0.01) was found between serum insulin-like growth factor (IGF)-I concentration and bodyweight gain (P<0.01) and antler yield (P<0.01), using the regression equations: bodyweight gain (kg) = 0.06IGF-1 (ng/mL) - 52.14 (R-2 = 0.69, n = 8) and antler yield (g) = 3.55IGF-1 (ng/mL) - 1659.4 (R-2 = 0.77, n = 8), respectively. We concluded that 16% dietary protein was optimal for bodyweight gain and antler yield during the antler growth period in the sika deer.

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