凉山黄牛成年母牛体尺与体重相关分析  

Correlation Analysis of Body Size and Body Weight of Adult Liangshan Cattle

作　　者：安拉扎 张涛 陈鲁喜 孙艳 周国燕 AN La-za;ZHANG Tao;CHEN Lu-xi;SUN Yan;ZHOU Guo-yan(Liangshan Prefectural Institute of Animal Husbandry and Veterinary Sciences of Sichuan Province, Xichang 615000)

机构地区：[1]四川省凉山彝族自治州畜牧兽医科学研究所,四川西昌615000

出　　处：《中国牛业科学》2021年第6期27-30,共4页China Cattle Science

基　　金：国家现代农业产业技术体系四川创新团队建设专项经费(sccxtd-2020-13)。

摘　　要：[目的]为探讨凉山黄牛成年母牛体尺指标与体重的相关性,[方法]对57头凉山黄牛成年母牛体尺指标、体重的测定结果进行相关分析和通径分析,并建立了最优回归方程。[结果]表明:凉山黄牛成年母牛体重(y)与体高(x_(1))、体斜长(x_(2))、胸深(x_(3))、胸宽(x_(4))、胸围(x_(5))、荐高(x_(6))、腰角宽(x_(7))呈极显著正相关(P<0.01),与管围(x_(8))呈显著正相关(P<0.05)[结论]体斜长、胸围、腰角宽、管围是影响体重的最主要性状,构建的最优多元回归方程为:y^=114.9069+0.2218x_(2)+0.7837x_(5)+0.2048x_(7)-0.1900x_(8)。[Objective]In order to explore the correlation between body measurement and body weight of adult Liangshan cattle,[Method]correlation analysis and path analysis were carried out on the measurement results of body size index and weight of 57 adult Liangshan cattle,and the optimal regression equation was established.[Result]the result showed:the height(x_(1)),oblique length(x_(2)),chest depth(x_(3)),chest width(x_(4)),chest circumference(x_(5)),hip cross height(x_(6)),waist width(x_(7))Was extremely significantly positively correlated with the body weight of Adult cow(P<0.01),and was significantly positively correlated with tube circumference(x_(8))(P<0.05);body oblique length,chest circumference,waist angle width,and tube circumference were the most important traits that affect body weight.[Conclusion]The optimal multiple regression equation is:y^=114.9069+0.2218x_(2)+0.7837x_(5)+0.2048x_(7)-0.1900x_(8).

关 键 词：凉山黄牛 体尺 体重 相关分析 

分 类 号：S823[农业科学—畜牧学]