274 MASS. EXPERIMENT STATION BULLETIN 258 



Table 10. — Character op Female Breeders — 1925 



Table 10 presents the characteristics of the female breeders used in 1925. 

 The general inferiority of these birds compared with the foundation females used 

 in 1923, shown in Table 4, is very evident. The check birds tended to late 

 maturity and to heavy body weight. They also tended toward low intensity 

 and to very mediocre egg production. The hatching records for the checks were 

 decidedly inferior, and only seven chicks were produced. 



The inbred birds showed less tendency to late maturity than did the checks. 

 The inbreds were also of satisfactory weight, but many of them were low in in- 

 tensity. They were satisfactory from the standpoint of non-broodiness and 

 persistency, but their annual egg records were lower than for the foundation 

 mothers of 1923. Hatching records were poor so that only 36 chicks were 

 produced. 



Results of Matings — 1925 



The number of progeny produced from the 1925 matings was too small for 

 studying the sex ratios. Their complete weight and mortality records are given 

 in Table 11. 



