萨福克肉用种羊性状线性相关与回归分析

对 2 0 4只萨福克肉用种羊的资料进行了相关与回归分析。结果表明 :萨福克肉用种羊的体重与胸围、体斜长、尻宽、毛长各性状间的单相关均为强正相关 ,且相关关系和相关系数极显著 (P <0 0 1) ;体重与胸围及体斜长间的偏相关 (r2 3 1=0 6 8与r13 2 =0 6 5 )均为强正相关 ,且相关关系极显著 (P <0 0 1) ,而r2 3 1=0 0 2为弱正相关 ,相关关系不显著 (P >0 0 5 ) ;体重与胸围和体斜长的复相关为强正相关 ,且相关关系极显著 (P <0 0 1) ;体重与胸围和体斜长间的单回归关系和偏回归关系均极显著 (P <0 0 1)。

Analysis on Correlations and Regression of Suffolk Mutton Buck

Dates of 204 heads of Suffolk Mutton Buck were analysised by the methods of correlations and regressions.The result showed that the single correlation between the characters of weight,chest girth,body slanting length Rump width and wool length were all positive correlations The correlation and coefficient were prominent(P<0 01).The biased correlation between weight and chest girth as well as body slanting length were both positive correlation(r 23 1 =0 68,r 13 2 =0 65)and the correlation was prominent(P<0 01)) But the r 23 1 =0 02 was weak positive correlations and was not significant (P<0 05) The composite correlations between the body weight and chest girth as well as body slanting lenght were positive correlations and the correlation was very prominent(P<0 01) The single and partial regression relations of the body weight and chest girth as well as body slanting length were very prominent(P<0 01)