Correlation Analysis Between Body Weight and Body Size of Chawula Yak
To explore the correlation between body weight and body size indicators of Chawula yak.SPSS 23.0 data statistical analysis software was used to conduct descriptive statistics,correlation analysis and multiple linear stepwise regression analysis on the weight and body size data of 37 adult Chawula yaks.The body weight of Chawula yak has the largest coefficient of variation(22.25%),and has correlations with other seven body size indi-cators.The correlation between body weight and body height,body straight length,body oblique length,chest circumference,back height,waist height reached an extremely significant level(p<0.01),while the correlation between body weight and tube circumference reached a significant level(P<0.05).The optimal regression equation was weight=-485.969+1.996 chest circumference+1.765 body obliquely long+1.397 body height(R2=0.879,p<0.01).
Chawula yakbody weight and body sizestepwise regression analysis