Calving course influence on further reproductive ability in first-calving heifers
Автор: Yusupov S.R., Bagmanov M.A.
Статья в выпуске: 1 т.205, 2011 года.
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As a result of pathologic calving concerned with a big foetus, obstetric-gynaecological diseases are often observed, which result in sterility. Therefore there is a need to match bull sperm to young heifers according to their age and weight.
Pregnancy, obstetric-gynecological diseases, sterility, krupnoplodie, abnormal birth, heifers
Короткий адрес: https://sciup.org/14287149
IDR: 14287149
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