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不同同期发情方法和输精时间对奶牛受胎率的影响 被引量:1

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摘要 为了提高奶牛的繁殖力,本试验采取两种不同的给药方法分别对青年母牛和经产母牛进行同期发情处理,并比较研究了发情后不同输精时间对受胎率的影响。结果表明,①两种同期发情的处理方法均取得了较高的同期发情率,方法Ⅱ的处理效果较好,经此法处理的青年母牛和经产母牛的同期发情率分别比方法Ⅰ的处理效果高出3.34和1.67个百分点;②采用两种同期发情处理方法,青年母牛组间和经产母牛组间的同期发情率差异不显著(P>0.05),但两组青年母牛的同期发情率(88.33%、91.67%)均高于经产母牛的同期发情率(85.00%、86.67%)。③青年母牛最佳配种时间为发情后10~12h,而成年母牛最佳配种时间为发情后13~15h。
出处 《饲料广角》 2012年第17期33-35,共3页 Feed China
基金 贵州省农业攻关项目"奶牛高效关键饲养技术及营养调控研究与示范" 合同编号:黔科合NY字(2007)3008号 贵州省科技厅项目<贵州省畜禽健康养殖技术创新能力建设项目> 合同编号:黔科合院所创能[2010]4004号
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