New York Agricultural Experiment Station. 401) 



In table XIV are recorded the data of a feeding trial during May 

 and June, including four periods of feeding. Seven cows were 

 used in this trial of 5.1 years average age. They had been in milk 

 on the average about 4.7 months at the beginning. In the second 

 period alfalfa fodder took the place of the corn silage and clover 

 hay of the first, some change also being made in the grain. In the 

 third period hay was again fed in place of some of the green alfalfa, 

 and in the fourth period corn silage replaced the hay and part of 

 the alfalfa of the ration for the third period. By the first change 

 in the ration the nutritive ratio was made narrower. By the 

 second change the nutritive ratio was not much affected ; but the 

 third change was from a " narrower " to a much " wider " ration, 

 with considerable increase in the total food owing to the greater 

 palatability of the corn silage over the clover hay. 



From May 1st to 15th corn silage was fed morning and noon and 

 clover hay at night. The mixed grain No. 48 consisted of four 

 parts wheat bran, two parts linseed meal O. P., two parts cotton- 

 seed meal, and one part each of corn meal and wheat middlings. 

 The grain represented 43 per cent, of the cost of the ration and the 

 silage 38.3 per cent. The grain supplied 29.8 per cent, of the 

 digestible nutrients and the silage 51.1 per cent. 



From May 16th to 31st alfalfa fodder was fed three times daily, 

 The mixed grain, No. 49, consisted of four parts wheat bran, three 

 parts corn meal, and one part each of wheat middlings, linseed meal 

 O. P. and cottonseed meal. The grain represented 49.0 per cent, 

 of the cost of the ration and the alfalfa 51.0 per cent. The grain 

 supplied 36.1 per cent, of the total digestible nutrients and the 

 alfalfa 63.9 per cent. 



From June 1st to 15th alfalfa fodder was fed morning and noon 

 clover hay at night and the same grain mixture that was used in the 

 preceding period. The grain represented 45.2 per cent, of the cost 

 of the ration and the alfalfa 35.1 per cent. The grain supplied 

 36.3 per cent, of the total digestible nutrients and the green fodder 

 47.T per cent. 



From June 16th to 30th corn silage was fed morning and night 

 and alfalfa fodder at noon. No change was made in the grain. The 

 grain represented 41.7 per cent, of the cost of the ration and the 

 silage and green fodder 58.3 per cent. The grain supplied 26.7 per 

 cent, and the silage and green fodder 73.3 per cent, of the total 

 digestible nutrients. 



