318 



The Journal of Heredity 



CHARACTERISTIC COLOR DISTRIBUTION 



In the black and white Ayrshires, the colors usually occur in large patches, and are distinctly 

 separated. Other colors in the Ayrshire more usually occur as numerous small spots. 

 The cow here shown is the dam of the heifer illustrated in Fig. 12. (Fig. 13.) 



number, if both sire and dam are 

 entered with ntimbers, or if the sire is 

 recorded and the dam is entered in 

 Appendix A of any volume. 



BREED IS KEPT PURE. 



Under these provisions it is possible 

 for the progeny of many animals that 

 have been bred pure for many years to 

 qualify for registration in the herd 

 book. That Ayrshire breeders are tak- 

 ing advantage of these provisions is 

 shown by the numbers recorded in 

 Vol. 36, in which 4,507 cows and 895 

 bulls are entered with numbers, 1,128 

 cows are entered in Appendix A, and 

 1,848 cows in Appendix B. This seems 

 like introducing a large amount of new 

 blood into the breed every year, but it 

 must be remembered that these animals, 

 for all jjractical purpo.ses, have exactly 

 the .same kind of breeding as the i)cdi- 



greed animals. Then, too, this breed is 

 confined to a rather small area into 

 which comparatively few animals of 

 other breeds have been introduced for 

 breeding jjurpo.ses for several centuries. 

 Confinement to .such a small .section 

 has the further advantage that the 

 committees in charge can very easily 

 obtain reliable information about the 

 breeding of any herd. 



Table IV shows that the per cents, of 

 black and white cows in Appendices A 

 and B are considerably higher than those 

 shown in the j^receding tables, but that 

 does not i)rovc that the black and 

 white color is introduced into the breed 

 by this method of registration, for 

 Table I shows that Vol. 9 contained 

 2.26%, black and white cows, which 

 would tend to indicate that black and 

 white was present in the breed in the 

 early stages of its development. 



