利用MTDFREML估计大约克双肌臀种猪活体背膘厚遗传力  

Estimation of the heritability of back fat alive on double muscle Large Yorkshire swine by MTDFREML

作　　者：曹洪战[1] 吴常信[1] 师守堃[1] 

机构地区：[1]中国农业大学动物科技学院,北京100094

出　　处：《畜牧与兽医》2003年第1期6-7,共2页Animal Husbandry & Veterinary Medicine

摘　　要：利用MTDFREML软件包估计大约克双肌臀种猪活体背膘厚遗传力。首先用SAS软件包对固定效应进行不同水平间差异显著性检验 ,尔后确定固定效应的水平数 ,最后用MTDFREML进行遗传参数估计 ,得出大约克双肌臀种猪 1 0 0kg体重时活体背膘厚遗传力的估值。这对于大约克双肌臀种猪的育种实践将起到一定的促进作用。MTDFREML software was used to estimate the heritability of back fat alive on double muscle Large Yorkshire swine.SAS software was first used to test the differences of different levels,and then levels of each fix effect, MTDFREML was finaly used to estimate genetics parameter.This paper reported the estimated value of heritability of back fat alive at 100 kg weight in double muscle Large Yorkshire swine which may accelerate the breeding practice of double muscle Large Yorkshire swine.

关 键 词：MTDFREML 大约克双肌臀种猪 活体 背膘厚 遗传力 胴体性状 

分 类 号：S828[农业科学—畜牧学]