摘要
研究利用动物模型和MTDFREML方法估计了1992-2005年间夏南牛的部分生长性状,包括6月龄、12月龄、18月龄的体高、体长、胸围、后腿围和管围的遗传参数.结果表明:夏南牛各体尺性状的遗传力在0.31～0.60之间;6月龄、12月龄和18月龄体尺之间的遗传相关系数分别在0.72～0.94,0.71～0.88和0.73～0.95之间;各体尺性状不同年龄之间的遗传相关系数在0.87～0.95之间.
The genetic parameters of body height,body length,chest girth,hind leg girth and shank circumference of 6-,12-and 18-month-old Xianan cattle were estimated based on the data recorded from 1992 to 2005 by animal model using MTDFREML.The result showed that heritability of these body measurement traits ranged from 0.31 to 0.60;the genetic correlation of body measurements at 6 months,12 months and 18 months varied in the range of 0.72-0.94,0.71-0.88 and 0.73-0.95,respectively;and the genetic correlation of body measurement between different age groups varied from 0.87 to 0.95.
出处
《西南大学学报（自然科学版）》
CAS
CSCD
北大核心
2010年第4期41-45,共5页
Journal of Southwest University(Natural Science Edition)
基金
河南省世界银行贷款肉牛发展资助项目(豫牧计字2000-33)
