208 Report oF tHE First ASSISTANT OF THE 
In table V are shown the results obtained during August, 1892, 
in feeding alfalfa forage and oat and-pea forage. Ten cows were 
used in this trial, of 3.5 years average age August 1, at which 
time they had been in milk on the average about four months. 
The same hay and grain were fed throughout the trial — alfalfa 
forage was fed during the first part and oat and pea forage during 
the latter part. From August 1 to 13, inclusive, alfalfa 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 represented 48.1 per cent. of the cost of the ration and 
supplied 30.2 per cent. of the digestible nutrients. The forage 
represented 34.2 per cent. of the cost of the ration and supplied 
53.3 per cent. of the digestible nutrients. 
From August 14 to August 31, oat-and-pea forage was fed 
morning and noon, hay at night, and the same mixed grain as 
before. The grain represented 49.3 per cent. of the cost of the 
ration and the forage 32.9 per cent. The grain supplied 33.0 per 
cent. of the digestible nutrients and the forage 49.4 per cent. 
There was an average loss of weight during the whole month of 
16 pounds. 
In changing from alfalfa to oat-and-pea forage the nutritive 
ratio of the rat on was made wider. There was a slight diminu- 
tion in the amount of total digestible nutrients and in the fat, and 
considerable in the amount of protein. The fuel value of’ the 
ration was somewhat less. The cost of the ration was practically 
the same for both periods. In the second period there was con- 
siderable falling off in the milk yield, and in the amount of 
the milk constituents, although there was a slight improvement 
in the quality of the milk. The cost of milk and solids was 
increased. 
The highest daily average milk yield for the first period was 
28.8 pounds and the lowest 14.81 pounds. The highest average 
percentage of fat was 4.80 and the lowest 2.70. For the second 
period the extremes in daily average yield were 27.48 pounds 
and 13.63 pounds, and in percentage of fat 5.10 and 2.48. 
The following table shows the composition of each food 
used : 

