摘要
为探讨麻城黑山羊母羊体质量与体尺性状的相互关系,利用SPSS软件对43只18月龄麻城黑山羊母羊的体质量与体尺性状进行相关及通径分析,并以体高(X1)、体斜长(X2)、胸围(X3)、管围(X4)为自变量,体质量(Y)为依变量,采用逐步回归分析方法,建立最优回归方程。结果表明:麻城黑山羊母羊体质量与体尺性状间有极显著相关,胸围、体斜长及管围的直接作用和间接作用对体质量的影响极大;得到的最优回归方程为Y=0.5120X2+0.4947X3+1.9679X4-58.9607。
To research the correlation between body mass and body measurement traits of Macheng black goats, the determination results of body mass and body measurement of 43 18-month-old Macheng black goats ewe were analyzed by SPSS software with path analysis and correlation analysis, and the body height （X1）, body length （X2）, chest circumference （X3）, cannon circumference （X~） as the independent variable, body mass （Y） as the dependent variable, using stepwise regression analysis method, the optimal regression equation is established. The results showed that Macheng black goats body measurement traits and body mass had extremely significant correlation and the body mass was extremely affected by the direct action and indirect action of chest circumference, body length, cannon circumference. The optimal regression equations were obtained for Y=0.5120X2＋0.4947X3＋1.9679X,-58.9607.
出处
《东北农业大学学报》
CAS
CSCD
北大核心
2013年第12期63-67,共5页
Journal of Northeast Agricultural University
基金
动物胚胎工程及分子育种湖北省重点实验室专项(2012ZD110)
湖北省农业科技创新中心资助项目(2007-620-004-003)
关键词
麻城黑山羊
体质量
体尺
回归分析
Macheng black goat
body mass
body measurement
regression analysis
