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nai niu xing kong dong jing sheng chan ying yong wen ti yu dui ce fen xi
Author(s): 
Pages: 8-9
Year: Issue:  9
Journal: China Dairy Cattle

Abstract:  对于奶牛养殖者来说,牛奶是他们实现利润的主要产品,母牛是他们实现生产效益的主体.由于母牛的经济效益显著高于公牛(不包括种公牛),多产母犊,少产公犊或不产公犊就成了奶牛饲养者的一个共同愿望,多生一头母犊,就多一份经济收益.
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