中国草食动物科学2017，Vol.37Issue(5)：14-17,4.DOI:10.3969/j.issn.2095-3887.2017.05.004
白萨福克羊体重与体尺指标的相关及回归分析
Correlation and Regression Analysis of Body Weight and Body Sizes in White Suffolk Sheep
王伟峰1
作者信息
- 1. 甘肃省会宁县世界银行贷款畜牧综合发展肉羊项目办公室,会宁 730799
- 折叠
摘要
Abstract
The phenotypic correlations,path coefficients,direct and indirect correlations between the body weight and body sizes in White Suffolk sheep were analyzed by SPSS 17.0 software. Then the optimum regression equation between the body weight and body sizes was established. The results indicated that the body height(x1),cannon- bone circumference(x4)did not show significant correlation with the body weight at the 0.05 level and the phenotypic correlation were 0.382 and 0.525,respectively. The chest circumference(x3)and body length(x2)showed significant correlations with the body weight at the 0.01 level and the phenotypic correlation coefficient were 0.822 and 0.519,respectively. The body height,body length and cannon bone circumference had indirect influence by chest circumference mainly. The chest circumference had indirect influence by body length and cannon bone circumference. The optimum regression equation between the body weight and body size in White Suffolk sheep was:y=-105.123+1.217x3+0.619x2,and the normalized form of it was:y=0.738x3+0.186x2(R2=0.704,P<0.01).关键词
白萨福克羊/体重/相关性分析/通径分析/回归模型Key words
White Suffolk sheep/body weight/correlation analysis/path analysis/regression model分类
农业科技引用本文复制引用
王伟峰..白萨福克羊体重与体尺指标的相关及回归分析[J].中国草食动物科学,2017,37(5):14-17,4.
