424 



Feeds and Feeding. 



bodies and of distinctly dairy type. The returns of cows of the 

 different types are shown in the following table : 



Beef and dairy types of cows. 



The great difference in the cost of producing butter fat, due to the 

 type of animal used, is here shown. (593) 



687. Good and poor producers. Carlyle and Woll, at the Wis- 

 consin Station, 1 studied the food consumed by and the returns from 

 33 cows, covering 88 milking periods extending thru the entire win- 

 ter. The herd was divided into the following classes according to 

 their production capacity. 



Feed eaten and returns by cows of different quality. 



The high-grade producers ate much more feed for their weight 

 than the others, yet they required only 102 Ibs. of dry matter for 100 

 Ibs. of milk, while the low-grade cows, which ate less feed, required 

 149 Ibs., or almost 50 per cent, more feed for 100 Ibs. of milk. 



1 688. Profitable v. unprofitable cows. Beach of the Connecticut 

 (Storrs) Station 2 found the cost of feed and the returns from the 5 

 best and the 5 poorest cows in the Station herd for 5 years to be as 

 shown in the table on the next page. 



The table shows that the good cows ate more feed and gave better 

 returns over cost of keep than the small producers. During the first 



2 years the 5 poorest cows did not pay for their feed. By gradual 



Bui. 102. 



Bui. 29. 



