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《Grass-Feeding Livestock》 2008-03
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A Research on Path Analysis and Optimum Regression Mode Between Body Weight and Body Size in the Adult DaZu Black Goats

CHEN Yong-jun1,ZHAO Zhong-quan1*,ZHANG Jia-hua1,LI Zhou-quang1,CHENG Lin1, WANG Xian-hai2,WANG Jian-guo2(1.College of Animal Science and Technology,Southwest University,Beipei Chongqing 400715,China 2.Animal Husbandry of Dazu.Dazu Chongqing 402360,China)  
The SPSS was utilized in this article to separately analyze the correlation of body size and weight in the adult Dazu black goats,the direct and indirect influence of body size to body weight,and the decision degree of body size to body weight.Finally optimum regression mode was established about body weight and body size.The result was indicated: chest width and cannon circumference is the most significant factors that influenced the ram's body weight;the chest circumference is the most significant factor that influenced the ewe's body weight.The ram optimum regression equation was: Y=19.630-0.940X6 + 4.346X7,the ewe optimum regression equation was: Y=-17.942 + 0.661X4.
【Fund】: 重庆市科委攻关项目(NO:8443)资助
【CateGory Index】: S827
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