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METHOD FOR SELECTING BULLS TO COWS IN BEEF FARMING
METHOD FOR SELECTING BULLS TO COWS IN BEEF FARMING
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机译:牛场选择公牛的方法
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摘要
A method for selecting bulls to cows in beef farming includes heterogeneous selection of dams to sires according to the main productivity characters. In addition heterogeneous pairing of parents according to the activity of aspartate aminotransferase (AST) is used.
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