STUDY OF SELECTIONS FOR SIZE, SHAPE, AND COLOR OF HENS' EGGS 209 



It is clear that no correlation exists for these characters. This state- 

 ment, of course, has reference to the first generation only. This result 

 does not show that when comparing the mean characters for the several 

 offspring from a certain mating, one may not find a variability depending 

 on the difference between the same characters for the respective dam 

 and sire. 



TABLE 1. STANDARD DEVIATION OF EGG SIZE (WEIGHT IN GRAMS) DURING FIRST YEAR OF 

 PRODUCTION, SUBJECT; DIFFERENCE BETWEEN EGG-SIZE LIFE MEAN FOR DAM AND FOR 

 SIRE, RELATIVE 



Coefficient of correlation = .012 .052 



1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 



26 13 10 9 4 13 16 17 13 20 5 10 



110001001 169 



TABLE 2. STANDARD DEVIATION OF EGG SIZE DURING SECOND YEAR OF PRODUCTION, 

 SUBJECT; DIFFERENCE BETWEEN EGG-SIZE LIFE MEAN FOR DAM AND FOR SIRE, 

 RELATIVE 



Coefficient of correlation = .28 .08 



7 8 9 10 11 12 13 14 15 16 17 18 19 



000 



56 



