维持肉牛群高水平的繁殖性能

J.N. Wiltbank Ph.D. (Professor)
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引用次数: 26

摘要

为了确保一个牛群的繁殖计划高度一致,90%到95%的奶牛必须每年提前产犊,并断奶一头体重较大的小牛。要做到这一点,制作人应该遵循以下步骤:喂养小母牛以达到与其品种一致的目标体重。2. 与一头已知能产下小犊的公牛(长角或泽西或一个品种中已被证实的公牛)交配45天。也可以考虑用婆罗门血统的奶牛来减少出生体重。3.在牛群中使用60天的繁殖季节。4. 让奶牛在产犊时处于良好至中等的身体状况。5. 让奶牛在繁殖前三周和繁殖季节增重。6. 在繁殖季节开始的48小时内将小牛移除。7. 繁殖到可育的公牛。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Maintenance of a High Level of Reproductive Performance in the Beef Cow Herd
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