Massachusetts 

 Agricultural Experiment Station 



TECHNICAL BULLETIN No. 9 OCTOBER, 1926 



ANNUAL PERSISTENCY 



IN RELATION TO 



WINTER AND ANNUAL EGG PRODUCTION 



By F. A. HAYS and RUBY SANBORN 



This bulletin is the third in a series dealing with the five inherited traits 

 in relation to fecundity. Those already published shew the relation of 

 broodiness and of winter pause to egg production; while a later publica- 

 tion will consider intensity in relation to fecundity. 



The records show that high persistency is a trait much to be desired 

 from the standpoint of production, and that there is no reason why it 

 may not be combined with other desirable traits in the same individual. 



Requests for bulletins sliould he addressed to the 



AGRICULTURAL EXI'KIIIMKNT STATION 

 AMHERST, MASS. 



