Massachusetts 

 agricultural experiment station 



JVIAY 1 1945 



Bulletin No. 420 November, 1944 



Mortality Studies 

 in Rhode Island Reds 



By F. A. Hays 



Mortality from all causes is one of the most important problems of poultry- 

 men. This report is intended to add something to the very limited information 

 on the role of breeding in reducing mortality. 



MASSACHUSETTS STATE COLLEGE 

 AMHERST, MASS. 



