摘要
为乌骨山羊品种选择和育种提供理论依据,利用SPSS软件对64只乌骨山羊成年母羊体尺体重性状进行相关分析,并采用逐步回归法,建立最优回归方程。结果表明:乌骨山羊体高(X_1)、体长(X_2)、胸围(X_3)、管围(X_4)与体重(Y)均呈极显著正相关(P<0.01),胸围、体长及体高的直接作用和间接作用对体重影响极大(P<0.01);乌骨山羊体尺指标(Xi)对体重(Y)的最优回归方程为Y=-69.923 19+0.326 27X_1+0.138 46X_2+0.961 72X_3。
To provide a theoretical basis for species selection and breeding of Black-bone goat,the data of body weights and body sizes from 64 adult Black-bone does were analyzed by SPSS software with regression analysis and correlation analysis,stepwise regression analysis method,the optimal regression equation was established. The results showed that the body height（X1）,body length（X2）,chest circumference（X3）,cannon circumference（X4）showed very significant correlations with body weight（Y）at the 0.01 level.The body weight was extremely affected directly and indirectly by the chest circumference,body length,body height. The best regression equation of body weight with body sizes was obtained as：Y=-69.92319＋0.32627X1＋0.13846X2＋0.96172X3.
作者
索效军
张年
杨前平
陶虎
熊琪
李晓锋
陈明新
Suo Xiaojun Zhang Nian Yang Qianping Tao Hu Xiong Qi Li Xiaofeng Chen Mingxin(Institute of Animal Science, Hubei Academy of Agricultural Sciences, Wuhan 430064, China Hubei Key Laboratory of Animal Embryo and Molecular Breeding, Wuhan 430064, China)
出处
《中国草食动物科学》
CAS
2017年第5期10-13,共4页
China Herbivore Science
基金
湖北省农业科技创新中心资助项目(2016-620-004-002)
关键词
乌骨山羊
体重
体尺
相关性分析
逐步回归分析
Black-bone goat
body weight
body size
correlation analysis
stepwise analysis
