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METHOD FOR SELECTING BREEDING BULLS ACCORDING TO SPERM PRODUCTIVITY THEREOF
METHOD FOR SELECTING BREEDING BULLS ACCORDING TO SPERM PRODUCTIVITY THEREOF
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机译:根据精子生产力选择育种公牛的方法
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摘要
A method for selecting breeding bulls according to sperm productivity thereof such that additionally in the six-month age a genetic expertise of the bulls for the presence of genetic defects is carried out, for the further lowering of the concentration of these genes in dairy cattle herds those young bulls are selected, in blood samples of which the main genetic defects are absent.
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