New York Agricultural Experiment Station. 473 



During May there was an average gain in live weight of 2.3 

 pounds and during June of 51 pounds. The cost of the ration for 

 the second period was less than that of any other, and this ration 

 was more efficient than any except tliat for the last period, when a 

 considerably larger amount of food was consumed. There was 

 more dry matter in the food eaten when corn silage was fed, and 

 the fuel value of the ration correspondingly higher. 



For the first period the greatest daily average yield in milk was 

 29.6 pounds and the smallest IS. 2 pounds. The highest average 

 percentage of fat was 5.35 and the lowest 2.80. For the second 

 period the extremes in daily average milk yield were 31.7 pounds 

 and 16.4 pounds and the extremes in average percentage of fat 5.30 

 and 2.80. For the third period the extremes in daily average milk 

 yield were 30.5 pounds and 17.2 pounds and in average percentage 

 of fat 5.50 and 3.00, For the third ])eriod the extremes in daily 

 average milk yield were 32.7 pounds and 17.3 pounds and in aver- 

 age percentage of fat 5.60 and 2.75. 



The composition of each food is shown in the following tab- 

 ulated form : 



