464 Report op the First Assistant of the 



In table XIII are given the data for two feeding periods in the 

 second of which beets took the place in the ration that alfalfa fod- 

 der had in the first, enough change in the grain being made to keep 

 the nutritive ratio from becoming unnsually wide. In this trial 

 seven cows were used, which averaged in age about 5.5 years and 

 had been in milk about 5.8 months. 



From October 16th to 31st alfalfa fodder was fed morning and 

 noon and mixed timothy hay at night. The mixed grain, No. 43, 

 consisted of six parts corn meal, five parts wheat bran and one part 

 each of wheat middlings, linseed meal O. P., cottonseed meal and 

 gluten feed. The grain represented 44.6 per cent, of the cost of 

 the ration and the alfalfa 32.0 per cent. The grain supplied 32.1 

 per cent, of the digestible nutrients and the alfalfa 46.8 per cent. 



From November 1st to November 15th mixed timothy hay was 

 fed at night, beets morning and noon and a mixed grain, No. 44, 

 composed of five parts wheat bran, two parts corn meal, two parts 

 gluten meal and one part each of ground oats, wheat middlings, 

 linseed meal O. P. and cottonseed meah The grain represented 

 40.1 per cent, of the cost of the ration and the beets 39.5 per cent. 

 The grain supplied 34.6 per cent, of the total digestible nutrients 

 and the beets 42.2 per cent. 



The change to beets made a more expensive ration and the effi- 

 ciency was not increased. There was a slight average loss in weight 

 during both periods. For the first period the greatest daily average 

 ■milk yield was 32.6 pounds and the smallest 17.1 pounds. The 

 highest average percentage of fat was 5.60 and the lowest 2.70. 

 For the second period the extremes in daily average milk yield were 

 30.9 pounds and 15.6 pounds, and in average percentage of fat 6.00 

 and 2.60. 



