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

中文关键词: 凉山黄牛  体尺  体重  相关分析

英文关键词: Liangshan cattle  bodysize  bodyweight  correlation analysis

中文摘要:

      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（x1）、体斜长（x2）、胸深（x3）、胸宽（x4）、胸围（x5）、荐高（x6）、腰角宽（x7）呈极显著正相关(P＜0.01)，与管围（x8）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： =114.9069+0.2218x2+0.7837x5+0.2048x7-0.1900x8。

英文摘要:

      Abstract: [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 (x1), oblique length (x2), chest depth (x3), chest width (x4), chest circumference (x5), hip cross height (x6), waist width (x7) ) Was extremely significantly positively correlated with the body weight of Adult cow (P＜0.01), and was significantly positively correlated with tube circumference (x8) (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: =114.9069+0.2218x2+0.7837x5+0.2048x7-0.1900x8.