102 



HATCH EXPERIMENT STATION. 



[Jan. 



History of Cows. 



* Used in first experiment. 



t Used in second experiment. 



The animals had been purchased in the neighborhood, at 

 an average cost of $50 each, when fresh. They were better 

 animals than the average, and most of them had been dry 

 for several months before calving,^ so that they would natu- 

 rally be able to do their best work during the two experi- 

 ments now being described. None of the animals had been 

 served at the beginning of the experiment, but they were 

 allowed to take bull later. Most of them were served be- 

 tween the two halves of the first experiment. 



Feeds and Feeding. 



In the first experiment all of the cows were fed hay and 

 sugar beets as coarse feeds. In the wide ration half, each 

 cow had one pound more of hay daily than in the narrow 

 ration half, in order to make up a like arnount of total 

 digestible daily nutrients. Chicago gluten meal and wheat 

 bran were fed in the narrow ration, and corn meal and wheat 

 bran in the wide ration. The hay was quite coarse, and con- 

 sisted of Timothy, with an admixture of clover, (^ow II. 

 left a small quantity of tiie coarser portion in one half, 

 which was deducted from the amount consumed in calculat- 

 ing the digestible daily nutrients eaten. 



In the second experiment the coarse feeds consisted of 

 hay, and millet and soy bean ensilage; the concentrated 

 feeds in case of the narrow ration were bran, Chicago gluten 



