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New Yorx AGRICULTURAL ExPERIMENT STATION. 915 
From September 1 to 15, oat-and-pea forage was fed morning 
and noon, hay at night, and a mixed grain, No. 27, consisting of 
five parts wheat bran, two parts ground oats, three parts corn meal 
and two parts linseed meal, N. P. The grain cost 49.2 per cent. 
of the cost of the ration and supplied 32.8 per cent. of the diges- 
tible nutrients. The forage represented 33.2 per cent. of the cost 
of the ration, and supplied 49.7 per cent. of the digestible 
nutrients. 
From September 16 to 30, inclusive, alfalfa forage was fed 
morning and noon, and hay at night. The same mixed grain 
was fed as during the preceding period. The cost of the grain 
was 52.7 per cent. of the cost of the ration, and 37.7 per cent. of 
the digestible nutrients were supplied by the grain. The forage 
represented 28.0 per cent. of the cost of the ration, and supplied 
_ 41.9 per cent. of the digestible nutrients. 
From October 1 to 15, corn silage was fed morning and 
noon, and hay at night. A mixed grain, No. 28, was fed, con- 
sisting of five parts wheat bran, three parts ground oats, two 
parts linseed meal, O. P., and two parts of cottonseed meal. The 
grain represented -49.8 per cent. of the cost of the ration, and 
supplied 30.1 per cent. of the total digestible nutrients. The 
silage represented 33.1 per cent. of the cost of the ration, and 
supplied 51.2 per cent. of the total digestible nutrients. There 
was an average gain in live weight of 17 pounds during the 
whole of September, and an average gain from October 1 to 15, 
of about 16 pounds. 
In changing from oat and-pea forage to alfalfa forage the 
nutritive ratio of the ration was made much narrower. There 
was less fat in the second ration and more protein; the total 
digestible nutrients were less and the fuel value was lower. There 
was a decrease in the total cost of the food, but the milk yield 
remained about. the same. The per cent. of fat in the milk was 
less. The cost of production was lower for milk and for total 
solids. The cost of fat produced was almost exactly the same. In 
changing from alfalfa forage to corn silage, although there was 
also some change in the grain, the nutritive ratio was made much 
wider, a change of from 1:5.1 to 1:8.3. There was an increase of 
4 _ total organic matter, total digestible nutrients and fat, but the 

protein was much less. There was considerable increase in the cost 
