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当前位置: 首页 > 文章 > 奶牛体型线性鉴定应用的探讨 华中农业大学学报 1992 (3) 268-275
Position: Home > Articles > THE APPLICATION OF CONFORMATION LINEAR EVALUATION IN DAIRY COW Journal of Huazhong Agricultural University 1992 (3) 268-275

奶牛体型线性鉴定应用的探讨

作  者：
邹木兰;金尔光
单  位：
武汉畜牧兽医科研所;华中农业大学牧医系
关键词：
乳牛;线性鉴定;遗传力
摘  要：
对武昌牛奶场的341头奶牛15项一级性状进行了线性评定。线性性状评分为:16.32—38.09。同时,对各性状的线性转换分,遗传力(h~2)进行分析的结果如下:初产牛分别为69.05—84.52,0.227—1.283,经产牛分别为71.04—83.27,0.004—0.464。结果表明体型外貌线性评分明显优于部位评分。
译  名：
THE APPLICATION OF CONFORMATION LINEAR EVALUATION IN DAIRY COW
作  者：
ZOU Mu-lan(Huazhong Agricultural University, Wuhan 430070) JIN Er-guang(Wuhan Municipal Animal Science and Veterinary Medivine Institute, Wuhan 430065)
关键词：
dairy cow, linear evaluation, heritability
摘  要：
The conformation linear evaluation of dairy cow was formed in the 15 items of first classtraits on the data of 341 cows in Wuchang dairy farm. Linear scores of these raits were from 16.32 to 38.09. Transformed scores and heritabilities of these traits were also estimated. Two parameters of the transformed scores and the heritabilities for the primiparous cows were from 69.05 to 84.52 and from 0.277 to 1. 283 respectively and were for multiparous cows from 71.04 to 83.27 and from 0.004 to 0.464 respectively . The results showed that the method of linear evaluation of conformation was better than the part evaluationin in dairy cows.

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