| 母体遗传效应对绒山羊生产性状遗传参数估计的影响 |
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| 引用本文： | 白俊艳,李金泉,贾小平,张勤,道尔吉. 母体遗传效应对绒山羊生产性状遗传参数估计的影响[J]. 遗传, 2006, 28(9): 1083-1086 |
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| 作者姓名： | 白俊艳 李金泉 贾小平 张勤 道尔吉 |
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| 作者单位： | 1. 河南科技大学动物科技学院, 洛阳 471003; 2. 内蒙古农业大学动物科学与医学学院, 呼和浩特 010018;3. 中国农业大学生物学院, 北京100094; 4. 中国农业大学动物科技学院, 北京 100094 ; |
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| 基金项目： | 内蒙古科技厅资助项目，内蒙古教育厅资助项目，河南科技大学校科研和教改项目 |
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| 摘 要： | 利用非求导约束最大似然法(DF-REML), 比较了内蒙古白绒山羊在两种不同动物模型下估计遗传参数的差异, 两种模型的区别在于是否考虑母体遗传效应。对两种模型的差异用似然比进行检验。结果表明, 母体遗传效应对于体重和绒厚影响极显著(P<0.01), 对于抓绒量、毛长、绒长度以及绒细度影响不显著(P>0.05)。
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| 关 键 词： | 绒山羊 遗传参数 母体遗传效应 DF-REML |
| 文章编号： | 0253-9772(2006)09-1083-04 |
| 收稿时间： | 2005-09-21 |
| 修稿时间： | 2005-12-28 |
Influence of Maternal Genetic Effect on Genetic Parameter Estimates of Production Traits of Cashmere Goat |
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| BAI Jun-Yan,LI Jin-Quan,JIA Xiao-Ping,ZHANG Qin,DAO Er-Ji. Influence of Maternal Genetic Effect on Genetic Parameter Estimates of Production Traits of Cashmere Goat[J]. Hereditas, 2006, 28(9): 1083-1086 |
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| Authors: | BAI Jun-Yan LI Jin-Quan JIA Xiao-Ping ZHANG Qin DAO Er-Ji |
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| Affiliation: | 1. College of Animal Science and Technology, Henan Science and Technology University, Luoyang 471003, China; 2. College of Animal Science and Animal Medicine, Inner Mongolian Agricultural University, Huhehot 010018, China; 3. College of Biological Science, China Agricultural University, Beijing 100094, China; 4. College of Animal Science and Technology, Chinese Agriculture University, Beijing 100094, China |
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| Abstract: | The derivative-free restricted maximum likelihood (DFREML) method was used to compare the differences of genetic parameter estimates of Inner Mongolian Cashmere Goats under two models, which differ in whether maternal genetic effect is taken into account. The differences between the two models were, tested by likelihood ratio test. The results show that maternal genetic effect highly affects live body weight and cashmere thickness while has no significant effect on raw cashmere weight, staple length, fibre diameter and fibre length. |
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| Keywords: | DF-REML |
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