Massachusetts 

 agricultural experiment station 



BULLETIN No. 286 JUNE, 1932 



Types of Intensity 

 In Rhode Island Reds 



By F. A. Hays and Ruby Sanborn 



Intensity or rate of laying is one of the very important inherited 

 characters affecting annual egg production in poultry. Various methods 

 have been used for measuring intensity, and there is an increasing need 

 for more information concerning the relative merits of the different 

 measures as well as for definite data concerning the relation of intensity 

 to other traits affecting fecundity. Interrelations between the rate of 

 laying in three different seasons and the relative values of six short-time 

 measures of intensity are considered in this report. 



MASSACHUSETTS STATE COLLEGE 

 AMHERST, MASS. 



