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日粮能量来源对热应激下育成母牛生产性能和繁殖性能及血液指标的影响 被引量:5

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摘要 本试验采用对比设计,选用24头健康雷琼育成母牛,随机分为4组,分别饲喂不同能量来源组合(玉米+麦麸、玉米+麦麸+木薯渣、玉米+木薯渣、玉米)的等能等氮日粮,研究能量来源对热应激下育成母牛生产性能、繁殖性能及血液指标的影响。试验期间平均温湿度指数为83.37。结果表明:玉米+麦麸组日增重(0.34 kg)为最高,与其他3组差异不显著(P<0.05),其血糖水平在第35、66天显著高于其他组(P<0.05),尿素氮水平在第66天显著低于其他组(P<0.05);2)玉米组在2个发情期的发情率、LH和瘦素水平都显著高于其他组(P<0.05)。结果提示,在热应激环境下,能量来源会影响母牛的生产性能和繁殖性能,以玉米+麦麸组生产性能效果较好,玉米组繁殖性能效果较好。
出处 《中国畜牧杂志》 CAS 北大核心 2012年第1期38-42,共5页 Chinese Journal of Animal Science
基金 现代农业(肉牛)产业技术体系专项经费资助(nycytx-38)
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参考文献8

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