• 18 
BULLETIN 1097. U 
DEPARTMENT OE AGRICrLTLBE. 
made to increase the feeding to £•0 pounds, but the cows refused to 
consume that quantity at a feed. It was noted that even when 5 
pounds were fed in nearly all cases the milk had a detectable feed 
flavor and odor, and when the quantity was increased to 15 pounds 
the feed flavor and odor became very objectionable. 
Table 9. — Effect of feeding 5 to 15 pounds of sweet-clover silage once daily 
one hour before milking. 
Result of sampling. 
Number of examinations 
Off flavor 
No off flavor.. 
Off odor 
No off odor 
Milk from cows fed 
silage. 
Milk from 
cows not 
fed silage. 
Before After 
aeration, aeration. 
30 
. 30 
?0 
28 
~2 
20 
10 

29 
1 
21 
9 

CO 
EFFECT OE AERATION. 
T\ hen the milk from the cows fed up to and including 15 pounds 
before milking was aerated, the intensity of the feed flavor and odor 
was diminished, as shown in the table. In the opinion of the judges 
sufficient of the feed flavor and odor had been removed during aera- 
tion to render the milk palatable. 
This experiment shows that even as little as 5 pounds of sweet- 
clover silage, when fed before milking, produced a feed flavor; 10 
pounds produced a decided feed flavor and odor, and 15 pounds so 
increased the intensity as to render the milk, if unaerated. objection- 
able to the average consumer. It is also shown that aeration so re- 
duced the flavor and odor present, when 5 pounds were fed. as to 
cause it largely to disappear. TThen 10 pounds were fed and the milk 
aerated, the sweet-clover silage flavor and odor persisted. When 15 
pounds were fed and the milk aerated, while the flavor and odor was 
somewhat stronger, a decided reduction in the degree had taken 
place. In the case of this silage, the odor, after aeration, seemed 
more tenacious than the flavor. 
In this experiment, as in others, check results were obtained with 
alternate cows not fed silage. There was a total lac£ of feed flavor 
and odor in the milk from these cows. 
2. FEEDING SWEET-CLOVER SILAGE AFTER MILKING. 
The next experiment was carried on to ascertain the quantity of 
sweet-clover silage that could be fed after milking and the methods 
of handling necessary to overcome the objectionable effects. 
