Benchmarks for Reproduction at the Herd Level

Mark Carson

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Benchmarks for Reproduction at the Herd Level

机译：在牛群水平上复制的基准

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Reproductive performance has improved in herds larger than 150 cows in central and western Canada since 2011.Improvements in heifer inventory management can be seen in age at first calving data since 2011.Only 16% of herds achieve conception rates > 40% and insemination rates ￡ 50%, whereas 29% of herds have conception rates below 40% and insemination rates below 50%.With widespread use of sexed semen, the number of heifers produced should be monitored and management of herd inventory should be the focus going forward.

机译：自2011年以来，加拿大中西部大于150母牛的生殖性能得到了改善。自2011年以来，大学家库存管理的过程可以在第一次加工数据中看到大学家库存管理.110％的畜群达到概念率> 40％和授精率£ 50％，而29％的畜群的概念率低于40％和低于50％的授精率。在广泛使用性别精液时，应监测生产的小母牛数量，并管理畜群库存的管理应该是焦点。

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《Advances in Dairy Technology》 |2019年第2019期|共5页
作者
Mark Carson;
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EastGen Genetics Guelph ON;

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正文语种 eng
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Benchmarks for Reproduction at the Herd Level

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