New York Agricultural Experiment Station. 417 



In table V the data secured in a feeding trial with twelve cows 

 during the months of November and December are given . These 

 cows averaged 3.5 years in age, and had been in milk on the 

 average 4 . 4 months at the beginning of the trial . 



There were four periods of feeding, the ration being changed 

 three times. The corn silage fed in the first period was replaced by 

 a somewhat larger amount of beets in the second . In the third 

 period there was a change of grain, making the nutritive ratio 

 narrower, and more beets were fed. In the fourth period corn 

 silage was substituted in lesser amount for the beets of the third 

 period . Owing to a limited supply of beets, the third period was 

 two days shorter than any other . 



From November 1st to 15th, inclusive, mixed hay (mostly 

 timothy), was fed at night, and a mixed grain (No, 28) composed 

 of five parts wheat bran, three parts ground oats, and two parts each 

 of linseed meal O. P., and cottonseed meal. The grain represented 

 47. 1 per cent of the cost of the ration, and the silage 36.4 per cent. 

 The grain supplied 27.7 per cent, of the total nutritive substance, 

 and the silage 56.1 per cent . 



From November 16th to November 30th, hay and grain were 

 fed as in the preceding period, although in increased amounts, and 

 beets were fed morning and noon . The grain represented 43 . 9 

 per cent, of the cost of the ration, and the beets 40.4 per cent. 

 The grain supplied 39 . 7 per cent, of the nutritive substance, and 

 the beets 41.1 per cent. 



From December 1st to 13th, inclusive, beets and hay were fed as 

 in the preceding period. The grain mixture (No. 29) was com- 

 posed of five parts wheat bran, four parts linseed meal O. P. and 

 one part each of ground oats, wheat middlings, and cottonseed meal- 

 The grain represented 45.6 per cent, of the cost of the ration and 

 the beets 38.9 percent. The grain supplied 37.0 per cent, of the 

 total nutritive substance and the beets 44.0 per cent. 



From December 14th to 31st hay and grain were fed as during 

 the first part of the month, the hay in somewhat smaller amount 

 and corn silage was fed morning and noon. The grain represented 

 52.7 per cent, of the cost of the ration and the silage 32.6 per cent. 

 The grain supplied 38.9 per cent, of the total nutritive substance 

 and the silage supplied 45.0 per cent. 



During the month of November there was an average loss of 7 

 pounds in weight and during December an average gain of 48 pounds- 

 27 



