WAUSHAKUM MILK IJECORD. 45 



The animals whose yields are represented, it will 

 be remembered, were selected with our best judg- 

 ment, for the best of natives and for the best of Ayr- 

 shires. We have, therefore, in these yields, a basis 

 for ascertaining the comparative value of the natives 

 and Ayrshires of similar grades and under similar 

 management, the variation of the same cows in dif- 

 ferent years, and other matters of interest, in a 

 reliable form. 



The natives were kept for their milk alone, and 

 none of the calves were raised. The Ayrshires are 

 a breeding herd, and not only are the calves raised, 

 but the supply of food is regulated with great care, 

 in order to avoid the hazard arising from high feeding 

 for milk. 



It is seen that, reducing all the figures to the basis 

 of one year, we have for the average yield, — 



68 Native cows, 4,605 pounds, or 2,141 quarts. 

 67.9 Ayrshire " 5,550 " 2,581 " (incladiuK heifers.) 



3 Jersey " 2,506 " 1,119 " 



Perhaps arranging our results as in the following 

 table will give a correct showing of the dilfereuces 

 between the native and the Ayrshire in percentages 

 of the whole number of cows kept, multiplied by the 

 number of years kept. Thus, a cow kept for three 

 years would appear in this table as three cows kept 

 one year. 



