New Yors« AcsicutturaL Experiment Sration. Q47 
In table XIII are given the data obtained in a feeding trial 
from September 1! to October 15, 1894. Seven cows were 
used which had been in milk on the average 4.l months. 
The average age September 1 was 5.6 years. There was 
a change to corn forage from alfalfa and oat-and pea: for- 
age and with the results from the two _ periods those 
obtained in a third, when only hay and grain were fed, 
are given for comparison. From September 1 to 15, inclusive, 
alfalfa forage was fed in the morning, oat-and-pea forage at noon 
and night, and a mixed grain (No. 40), composed of four parts 
wheat bran, one part ground oats, eight parts corn meal, one part 
wheat middlings and one part “ King” gluten meal. The grain 
represented 45.% per cent. of the cost of the ration, the forage 
representing 54.2 per cent. The grain supplied 22.9 per cent. of 
the total digestible nutrients, the forage supplying 77.1 per cent. 
From September 16 to 30, inclusive, corn forage was ted three 
times daily. The mixed grain fed (No. 42) was composed of five 
parts wheat bran, one part linseed meal, O. P., one part “ King ” 
gluten meal and one part cotton-seed meal. The grain repre- 
sented 47.3 per cent. of the cost of the ration, the forage repre- 
senting 52.7 per cent.; and the grain supplied 20.9 per cent. of 
the_total digestible nutrients, the forage supplying 79.1 per cent. 
From October 1 to 15, timothy hay was fed three times daily, 
and the same mixed grain fed as during the preceding period. 
_ The grain represented 41.6 per cent. of the cost of the ration and 
supplied 31.5%per cent. of the total digestible nutrients. 
F In changing to the corn forage of the second period the nutri- 
tive ratio of the ration was made a little wider. There was some- 
‘what less protein in the ration but almost the same amount of fat 
‘and of total nutrients, and there was not much difference in the 
fuel value; the cost of the ration was a little higher. There 
_ was but very little falling off in the milk yield and the per cent. 
a of fat in the milk was slightly higher. The cost of milk was 
_ somewhat higher and also the cost of fat. In the third period, 
although more grain was fed, not enough hay was taken to pre- 
_ vent a falling off in the total dry matter consumed. [Besides a 
_ decrease in the amount of protein—enough to make the ratio 
_ wider — there wasa decrease in the amount of other constituents, 
_ and the fuel value of the ration was less. The cost of the ration 

