微生态活菌制剂防治奶牛隐性乳房炎的效果试验

杨静,高淑琴,王庆奎,单晓枫,钱爱东

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畜牧与饲料科学 . 2012, (8): 105 -105 . DOI: 10.12160/j.issn.1672-5190.2012.08.062