154 STORRS AGRICULTURAL EXPERIMENT STATION. 
the first test was 15.9 pounds, and in the second test was 16.8 
pounds; and the average yield of butter was .84 pounds in the 
first test and .96 in the second. The first ration cost 16.8 
cents and the second ration 18.4 cents. The average cost of 
producing 100 pounds of milk was $1.06 in the first test and 
$1.09 in the second, while the cost of a pound of butter was 20 
cents in the first test and 19.2 cents in the second. From 
these figures it will be seen that while the average cost of the 
rations was 1.6 cents higher in the second test, the cost of pro- 
ducing 100 pounds of milk was slightly higher, and the cost of 
producing 1 pound of butter was slightly lower in the second 
test than in the first. 
Flerd S. Tests Nos. 56 and 58.—This was a small herd used 
in producing cream for a codperative creamery. ‘The herd 
was well stabled in a new barn and was driven a short distance 
each day to get water in a yard connected with another barn. 
Nine cows were included in each of these tests, the same ones 
in both tests. Seven of the cows were grade Jerseys, one a __ 
grade Holstein and one a grade Ayrshire. The average esti- 
mated weight of the cows in the herd was 725 pounds. Two 
of the cows had aborted during the summer and fall of 1899 
and one had calved prematurely, by about one month, shortly 
before the first test; but all of the animals seemed to be in a 
fair state of health at the time the test was begun, and there 
were no irregularities in the experiment. 
The coarse fodder used consisted of early cut hay of mixed 
grasses and corn stover, which were eaten with practically no 
waste. The grain feeds were wheat bran, Buffalo gluten feed, 
cream gluten meal and corn and cob meal. 
The first test began February 12, 1900, and continued 
twelve days. The daily ration for each cow in this test con- 
sisted of about 15 pounds of hay and 7 to 8 pounds of corn 
stover with about 5 pounds of mixed grain feeds. This ration 
supplied about 1.5 pounds of digestible protein per day, and. 
had a nutritive ratio of 1:9.1. 
The second test began March 12, 1900, and continued twelve 
days. In this test the amount of coarse fodders used was 
reduced, but the amount of grain feeds was increased. ‘The 
average basal ration for each cow consisted of about 10 pounds 
