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Factors Influencing Anestrus in Postpartum Dairy Cows
Author(s): Wu Chenchen, Xia Cheng
Pages: 19-
22
Year: 2007
Issue:
5
Journal: CHINA DAIRY CATTLE
Keyword: 奶牛; 乏情; 营养; 内分泌激素;
Abstract: 奶牛性成熟之后或产后长时间不发情称为病理性乏情,奶牛的乏情主要是由于不排卵、排卵延迟、卵泡萎缩或静止以及持久黄体所引起.奶牛产后一般40~60d发情,对于14月龄以上不发情的后备牛和产后60d不发情的母牛,应及时检查寻找病原和调整奶牛日粮营养成分.本文主要综述了能量、蛋白质、矿物质元素、微量元素、维生素和内分泌激素对奶牛产后乏情的影响.
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