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fang zhi du niu wan gu xing fu xie de guan jian huan jie
Pages: 48
Year: Issue:  7
Journal: Liaoning Journal of Animal Husbandry and Veterinar

Abstract: <正>某奶牛养殖小区,饲养成年母牛500头,后备母牛150头,犊牛240头。由于犊牛饲养管理较粗放,常年发生部分犊牛顽固性腹泻,造成严重经济损失。通过临床跟踪调查,采取相应的防治措施,收到满意效果,目前该奶牛养殖小区犊
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