| 夏南横交母牛繁殖性能调查 |
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| 引用本文： | 林凤朋,祁兴磊,祁兴山,刘保贺,王红梅. 夏南横交母牛繁殖性能调查[J]. 中国牛业科学, 2008, 34(5) |
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| 作者姓名： | 林凤朋 祁兴磊 祁兴山 刘保贺 王红梅 |
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| 作者单位： | 1. 河南省泌阳县畜牧局,河南,泌阳,463700
2. 河南省泌阳县羊册家畜改良站,河南,泌阳,463700 |
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| 基金项目： | 河南省科技攻关计划棗南阳牛导入夏洛来牛血培育肉用牛新品种项目 |
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| 摘 要： | 通过对581头1 240胎次夏南横交母牛繁殖性能的调查显示,夏南横交母牛的初情时间平均为472.3 d,发情周期为19.6 d,初配时间为493.2 d,妊娠期为285.9 d,产后初配时间为60.3 d,难产率为1.05%,2.5岁前产头犊可达94.0%,2~10.5岁产犊率为86.0%。
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| 关 键 词： | 夏横交母牛 繁殖性能 |
The Investigation on Reproductive Performance in Xianan Crossbred Cow |
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| LIN Feng-peng,QI Xing-lei,QI Xing-shan,LIU Bao-he,WANG Hong-mei. The Investigation on Reproductive Performance in Xianan Crossbred Cow[J]. China Cattle Science, 2008, 34(5) |
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| Authors: | LIN Feng-peng QI Xing-lei QI Xing-shan LIU Bao-he WANG Hong-mei |
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| Affiliation: | LIN Feng-peng1,QI Xing-lei1,QI Xing-shan2,LIU Bao-he2,WANG Hong-mei2 |
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| Abstract: | The investigation of reproduction performance in 581 Xianan cows for 1240 gestations showed that the average age of the first estrus was 472.3 days,estrus cycle was 19.6 days,first insemination was 493.2 days,gestation period was 285.9 days,First estrus after calving were commonly at the 60.3 days,and dystocia rate was 1.05 percent.The rate of first calving before 2.5 years was 94.0 percent.Calving rate between 2 and 10.5 years old was 86.0 percent. |
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| Keywords: | Xianan Crossbred Cow Reproductive Performance Investigate |
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