凉山黑绵羊成年母羊体重与体尺的相关性分析  

Correlation Analysis between Body Weight and Body Size of Liangshan Black Sheep Adult Ewes

作　　者：符俊 何春 黄卫平 何子拉 王晋康 黄正美 马子林 FU Jun;HE Chun;HUANG Weiping;HE Zila;WANG Jinkang;HUANG Zhengmei;MA Zilin(Liangshan Academy of Agricultural Sciences,Xichang 615000,China;Butuo Agriculture and Rural Bureau,Butuo 616350,China;Puge Agriculture and Rural Bureau,Puge 615300,China;Yanyuan Agriculture and Rural Bureau,Yanyuan 615700,China)

机构地区：[1]凉山州农业科学研究院,西昌615000 [2]布拖县农业农村局,布拖616350 [3]普格县农业农村局,普格615300 [4]盐源县农业农村局,盐源615700

出　　处：《中国草食动物科学》2022年第5期80-82,共3页China Herbivore Science

基　　金：凉山黑绵羊种质资源调查研究与选育(18NYCX0029)。

摘　　要：为研究凉山黑绵羊成年母羊的体重与体尺的相关性,随机选取56只成年母羊进行体重、体尺指标测量,并用Excel软件构建数据分析模板,分析其体重与体尺的相关性,建立最优回归方程。结果表明,凉山黑绵羊成年母羊的体重与各体尺指标均呈极显著正相关(P<0.01);胸围是影响成年母羊体重的主要指标,在选育中应以体重为主并兼顾胸围;凉山黑绵羊成年母羊体尺对体重的最优回归方程为:Y=-57.7464+0.1935X_(1)+0.5076X_(2)+0.6297X_(3),拟合度R^(2)=0.8069(P<0.01)。In order to study the correlation between body weight and body size of Liangshan Black sheep adult ewes,56 adult ewes were randomly selected for body weight weighing and body size measurement,and analyzed with Excel software and a self-made path analysis template.The results showed that there was a significant positive correlation between body weight and body size(P<0.01);chest circumference was the main indicator affecting body weight,and body weight should be the main factor in selection and breast circumference should be taken into account.The optimal regression equation of body size of Liangshan Black sheep ewes on body weight is:Y=-57.7464+0.1935X_(1)+0.5076X_(2)+0.6297X_(3),R^(2)=0.8069(P<0.01).

关 键 词：凉山黑绵羊 体重 体尺 相关性 回归方程 

分 类 号：S826.2[农业科学—畜牧学]