MASSACHUSETTS 

 AGRICULTURAL EXPERIMENT STATION 



Bulletin No. 364 June, 1939 



The Significance of 



Body Weight 



in Breeding for Egg Production 



By F. A. Hays 



Body weight is one of the recognized measures of value in poultry breeding. 

 This study was an attempt to discover what relationships exist between body 

 weight and production characters, egg size, and mortality, in a flock bred for 

 high fecundity. 



MASSACHUSETTS STATE COLLEGE 

 AMHERST, MASS. 



