四川农业大学学报 ›› 2014, Vol. 32 ›› Issue (02): 199-204.doi: 10.3969/j.issn.1000-2650.2014.02.013

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新西兰白兔生长性状的遗传参数估计

贾先波, 陈仕毅, 赖松家   

  1. 四川农业大学动物遗传育种研究所, 四川 温江 611130
  • 收稿日期:2014-04-28 出版日期:2014-06-30 发布日期:2017-02-28
  • 通讯作者: 赖松家,教授,E-mail:laisj5794@gmail.com。 E-mail:laisj5794@gmail.com
  • 作者简介:贾先波,助理研究员,博士,主要从事分子数量遗传学与畜禽育种的研究,E-mail:animalbg@gmail.com。
  • 基金资助:
    国家现代农业技术体系项目(CARS-44-A-2);四川省"十二五"科技支撑项目(2011NZ0099-4)

Genetic Parameters Estimation of Growth Traits in New Zealand White Rabbit

JIA Xian-bo, CHEN Shi-yi, LAI Song-jia   

  1. Institute of Animal Breeding and Genetics, Sichuan Agricultural University, Wenjiang 611130, Sichuan, China
  • Received:2014-04-28 Online:2014-06-30 Published:2017-02-28

摘要: [目的] 对新西兰白兔不同生长日龄体重和平均日增重进行遗传分析。[方法] 利用成都市爱华畜牧科技有限公司种兔场2011-2013年的生长性状记录,采用多性状动物模型约束性最大似然法(REML)对新西兰白兔35、42、56、70、84日龄的5个体重性状,35~42、42~56、56~70、70~84日龄的4个平均日增重性状进行遗传参数估计。[结果] 结果表明,新西兰白兔35、42、56、70、84日龄体重的遗传力分别是0.63、0.46、0.43、0.42、0.39。各日龄间体重呈强正遗传相关,相邻日龄间的遗传相关较其他日龄间强。35~42、42~56、56~70、70~84日龄平均日增重的遗传力分别是0.30、0.36、0.31、0.21。4个平均日增重间呈弱遗传相关。[结论] 为新西兰白兔育种方案的制定和选育工作提供了理论基础。

关键词: 新西兰白兔, 生长性状, 遗传力, 遗传相关

Abstract: [Objective] Genetic analyses were carried out for different daily weight and average daily gain of New Zealand white rabbit. [Method] Data of New Zealand white rabbit were collected from Chengdu Aihua farm animal technology limited company from 2011 to 2013.And genetic parameters were estimated for 35,42,56,72,84dweight and 35-42,42-56,56-70,70-84 d average daily gain by multi-trait animal model with REML algorithm. [Results] The heritabilities of 35,42,56,70,84 d weight were 0.63,0.46,0.43,0.42,and 0.39 respectively.The weights appeared strongly positive genetic correlations to each other,while genetic correlation were stronger between two closer weights than others.The heritabilities of 35-42,42-56,56-70,70-84 d average daily gain (ADG)were 0.30,0.36,0.31,and 0.21 respectively.There were weak genetic correlations among different ADGs. [Conclusion] It is a work that provides basic theoretical parameters for New Zealand white rabbit breeding.

Key words: New Zealand white rabbit, growth trait, heritability, genetic correlation

中图分类号: 

  • S829