| 中国西门塔尔母牛主要繁殖性状遗传统计分析 |
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| 引用本文： | 赵静,吕文发,陈德全,许尚忠,李俊雅. 中国西门塔尔母牛主要繁殖性状遗传统计分析[J]. 吉林农业大学学报, 2002, 24(4): 99-102 |
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| 作者姓名： | 赵静 吕文发 陈德全 许尚忠 李俊雅 |
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| 作者单位： | 1. 吉林农业大学动物科技学院,吉林,长春,130118
2. 中国农业科学院畜牧研究所,北京,100094 |
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| 摘 要： | 应用动物模型并借助MT－DFREML方法估计了中国西门塔尔母牛主要繁殖性状的遗传参数，得到母牛的配妊时间与产犊间隔的遗传力分别为0.065和0.047；母牛配妊时间、产犊间隔与305d产奶量表型相关系数分别为0.17和0.15，遗传相关系数分别为0.45和0.35；配妊时间与产犊间隔的表型相关系数为0.27,遗传相关系数为0.33。结果表明：环境因素对母牛主要繁殖性状影响非常显著，母牛繁殖性状为低遗传力性状，各性状间存在不同程度的相关。
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| 关 键 词： | 母牛 繁殖性状 统计分析 西门塔尔牛 遗传参数 |
| 文章编号： | 1000-5684(2002)04-0099-04 |
Genetic and Statistical Analysis on Main Reproduction Traits of Chinese Simmental |
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| ZHAO Jing ,LU Wen-fa ,CHEN De-quan ,XU Shang-zhong ,LI Jun-ya. Genetic and Statistical Analysis on Main Reproduction Traits of Chinese Simmental[J]. Journal of Jilin Agricultural University, 2002, 24(4): 99-102 |
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| Authors: | ZHAO Jing LU Wen-fa CHEN De-quan XU Shang-zhong LI Jun-ya |
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| Affiliation: | ZHAO Jing 1,LU Wen-fa 1,CHEN De-quan 1,XU Shang-zhong 2,LI Jun-ya 2 |
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| Abstract: | Genetic parameters of main reproduction traits and important economical traits of Chinese Simmental cows were estimated using animal model by Multiple Traits Derivative-free REML(MT-DFREML).The estimated heritibilities were 0.065 and 0.047 for interval from first to last inseminution and calving interval, respectively;Genetic correlation were 0.45 and 0.35 between IFL,CI and milk yield, respectively;phenotypic correlation were 0.17 and 0.15, respectively; genetic correlation was 0.33,and phenotypic correlation was 0.27 between IFL and CI.The results suggest that environmental factors have remarkable effects on reproduction of cows. Reproductions of cows belong to low heritability traits; there is different degree correlation among all traits. |
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| Keywords: | Chinese Simmental cows reproduction traits genetic parameters |
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