遗传 ›› 2006, Vol. 28 ›› Issue (9): 1083-1086.

• 研究报告 • 上一篇    下一篇

母体遗传效应对绒山羊生产性状遗传参数估计的影响

白俊艳1; 李金泉2; 贾小平3; 张 勤4; 道尔吉2   

  1. 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

  • 收稿日期:2005-09-21 修回日期:2005-12-28 出版日期:2006-09-01 发布日期:2006-09-01
  • 通讯作者: 李金泉

Influence of Maternal Genetic Effect on Genetic Parameter Estimates of Production Traits of Cashmere Goat

BAI Jun-Yan1; LI Jin-Quan2; JIA Xiao-Ping3; ZHANG Qin4; DAO Er-Ji2

  

  1. 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

  • Received:2005-09-21 Revised:2005-12-28 Online:2006-09-01 Published:2006-09-01
  • Contact: LI Jin-Quan

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)。

关键词: 绒山羊, 遗传参数, 母体遗传效应, DF-REML

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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