Heretical
发表于 2025-3-23 13:07:04
T1 Black Holes and Gray Matter Damageers..In the present investigation, the relative importance of genetic factors, divided into characters relating to the calf and those concerning the dam, was analysed. A heritability of 10% was found for calving performance of both the direct and the maternal character at first calving. For stillbir
orthodox
发表于 2025-3-23 16:45:24
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勤勉
发表于 2025-3-23 20:40:26
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强行引入
发表于 2025-3-23 23:38:15
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APO
发表于 2025-3-24 04:20:08
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hazard
发表于 2025-3-24 10:00:16
Hibiki Kawamata,Giovanni Manfrediuence of the sire, the type and birth weight of the calf, the age of the mother. Data on crosses between Blue-White bulls and Black-and-White cows are also given. The problem of selection against calving difficulties in the Blue-White breed is discussed.
手铐
发表于 2025-3-24 12:20:40
Selection for Double-Muscling and Calving Problemsuence of the sire, the type and birth weight of the calf, the age of the mother. Data on crosses between Blue-White bulls and Black-and-White cows are also given. The problem of selection against calving difficulties in the Blue-White breed is discussed.
急性
发表于 2025-3-24 16:17:22
f the European Communities, as part of the EEC programme of co ordination of research on beef production. The programme was drawn up by a combined scientific working group on Genetics and Selection and on Nutrition and Management on behalf of the Beef Production Committee. The working group consist
发酵
发表于 2025-3-24 21:40:34
Other Neurodegenerative Conditions higher for male calves than for female calves..Selection on gain parameters has negative side effects on calving performance. Therefore, selection after performance test should be based on an index in which birth weight or starting weight is kept constant.
一加就喷出
发表于 2025-3-25 02:15:34
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