EFFECT OF SILAGE OX FLAVOR AXD ODOR OF MII.K. 
IS 
Table 10. — Effect of feeding ~> to 1~> pounds of sweet-clover sttagt own daily 
one hour after milking. 
Result of sampling. 
Milk from cows fed 
silage. 
Milk from 
Before 
aeration. 
After 
aeration. 
Number of examinations 
30 
30 
30 
Off flavor 
28 
2 
20 
10 
2 
No off flavor 
28 

Off odor 
29 
1 
21 
9 
2 
No off odor 
28 
The results with unaerated milk show that when sweet-clover silage 
was fed after milking in quantities from 5 to 15 pounds, a feed flavor 
and odor were imparted to the milk. In explanation of this table it 
may be said that in 2 cases there were no feed flavors and in 1 case 
no feed odor when 5 pounds were fed. When this quantity was in- 
creased to 10 pounds, the notations were, " slight silage," and " slight 
feed*'; when 15 pounds were fed the samples were marked " feed." 
" strong feed." and " clover silage." Wink the feeding of sweet- 
clover silage is a desirable practice from an economic standpoint, the 
above results show that even when fed under ideal conditions it af- 
fected the flavor and odor of the milk produced. 15 pound-, fed after 
milking, tainting the milk sufficiently to be noted by the average 
consumer. 
EFFECT OF AERATION . 
Aeration, however, produced a marked change in the degree of the 
flavors present. By sprinkling the grain ration on the sweet-clover 
silage, each cow consumed up to 15 pounds of silage at a feeding. 
When this milk was aerated, in the opinion of the judges, the feed 
flavor was sufficiently diminished to be unobjectionable to the av- 
erage consumer. These results show that sweet-clover silage should 
be fed only after milking, and the milk should be carefully aerated 
while still warm. When this is done, up to 15 pounds at each feed- 
ing may be fed per cow without permanently injuring the commer- 
cial value of the product. 
EXPERIMENTS WITH SOY-BEAN SILAGE. 
Another protein roughage, soy beans, is also sometimes ensiled. 
When put in the silo alone soy beans make rank-smelling silage. The 
effect of this feed on the flavor and odor of milk is shown in the fol- 
lowing experiments. 
