STATISTICAL STUDY OF BODY WEIGHTS 263 



The measurement of initial weight shows no relationship with 

 gains, although this is usually considered one of the most import- 

 ant factors in selection of steers for experimental purposes. 



Measurements that show intermediate relationship as indicated 

 by coefficients of correlation are width of loin, depth of chest, 

 width of fore flank, length of head, height of withers, circum- 

 ference of paunch and width at shoulders. 



Table IV. — Summary of correlations. 



Mean live -weight pounds 893.93 i: 3-94 



Mean daily gain do. 1.95 ^ .016 



Standard deviation of live weight do. 106.88 ± 2.777 



Standard deviation of daily gain do. 0.446 ± .oil 



Correlation do. 0.0364 ± .036 



Measurements in which slight or no relationship exist as shown 

 by correlation coefficients are initial live weight, width of rear 

 flank, height at shoulder point and the distance of rear flank 

 and chest from the ground. 



A close relationship of circumference of chest with height of 

 withers is indicated by r + 0.621 + 0.034. Likewise, the width 

 of chest and depth of chest by r = 0.365 + 0.072 show a definite 

 relationship. 



