190 



THE BREEDING OF ANIMALS 



older the larger number of the offspring are males, and 

 when the mother is older the children tend to be females. 

 These results have been confirmed by Gohlert, Boulanger 

 and Legoyt. Many practical breeders have also cited 

 special cases in which the sex offspring seemed to follow 

 that of the older parent. Giroude Buzareingues l reports 

 results from breeding young immature ewes to strong 

 mature rams. The proportion of sexes was 80 males 

 to 35 females. When young rams were used as sires, 

 the proportion of sexes was 53 males and 84 females. 



SUMMARY OF STATISTICS BEARING ON RELATIVE NUMBER 

 OF MALES AND FEMALES 2 



1 Quarterly Journal of Agriculture, vol. 1, 1828, p. 63. 



2 Geddes and Thompson, "The Evolution of Sex," p. 35. 



