STUDY OF SELECTIONS FOR SIZE, SHAPE, AND COLOR OF HENS' EGGS 241 



The summary in table 51 groups the figures for the factor of significance, 

 -p-' according to years and life means. There is a more significant cor- 

 relation between the life mean of the offspring production and the type 

 of parent egg incubated, than between the production of any of the separate 

 years and the incubated egg. This means that the egg incubated affects 

 the mean type of egg produced during the whole life of the bird hatched, 

 to a greater extent than it affects the pullet-year production or the pro- 

 duction of any other single year. 



There is a strong correlation, as shown in tables 52 to 54, when a study 

 is made of the relationship between the individual eggs incubated and all 



TABLE 52. SIZE (WEIGHT IN GRAMS) .OP EGGS LAID BY BIRDS, SUBJECT; SIZE OF 

 EGGS FROM WHICH RESPECTIVE BIRDS WERE HATCHED, RELATIVE 



Coefficient of correlation = .458 db .007 



46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 



1 

 1 



1 



4 



12 



10 



22 



53 



167 



302 



498 



614 



735 



786 



694 



486 



320 



274 



169 



57 



22 



14 



5 



3 



300 646 376 41 S 585 557 667 2 356 500 811 28 



5,250 



the individual eggs produced by the respective birds hatched! The 

 factor -gj equals, for size, shape, and color, respectively, 65, 20, and 16. 



This is significant and suggests the same relative degrees of inheritance 

 as are found in other studies in this investigation. 



