28 
BULLETIN 1166, U. S. DEPARTMENT OF AGRICULTURE. 
For a period of 30 days the animal, a pure-bred Holstein, re- 
ceived corn silage as the succulent portion of her balanced ration, 
which included grain and hay. The silage was then replaced by 
the apple pomace for 30 days, allowing a 10-day transition period 
for the change in diet. Allowance was made for another transi- 
tion period of 10 days at the end of the apple pomace period, 
when the corn silage ration was resumed. The corn silage was 
continued for the third period of 30 days. Thirty-six pounds of 
soaked pomace (9 pounds of dried pomace to 27 pounds of water) 
was fed per day and an attempt was made to supply corn silage in 
such quantities during the third period that the average for the 
two silage periods would furnish approximately the same quantity 
of dry matter as that given in the pomace during the second period. 
The quantity of grain fed was constant throughout the experiment, 
and that of the hay was practically so. Table 12 summarizes the 
data from the feeding trial. 
Table 12. — Comparison of yield of mill 
irith that from coir 
from cow fed en dried apple 
fed mi corn silage. 
pomace 
Feed consumed. 
Yield. 
Feeding period No. 1 
Corn 
silage. 
Apple 
pomace 
■(moist- 
ened). 
Grain. 
Hay. 
Milk. 
Butterfat. 
1 
Pounds. 
940 
900 
920 
Pounds. 
Pounds. 
252 
252 
252 
252 
Pounds. 
245.0 
240.0 
242.5 
240.0 
Pounds. 
558.2 
502.1 
530.1 
2 546.6 
Pounds. 
22.33 
20.00 
21.16 
s 21. 68 
Per cent. 
4.00 
3 
3.98 
3.99 
2 
1,0S0 
3.96 
1 Feeding period, 30 days. 
3 An increase of 3.11 per cent when the pomace was fed. 
3 An increase of 2.45 per cent when the pomace was fed. 
The cow received the same quantity of grain, 2^ pounds less 
hay, and 160 pounds more wet pomace than corn silage during 
the pomace period as compared with the silage periods. On the 
same basis she produced 16^ pounds (or 3.11 per cent) more milk 
and slightly more than one-half pound (or 2.45 per cent) more butter- 
fat. This is equivalent to an increase of slightly more than one- 
half pound of milk and one- fourth ounce more fat per day, during 
which time 5-J pounds more succulence, but presumably no more dry 
matter, was fed. 
The pomace seemed to have no effect on the proportion of fat in 
the milk. It was always eaten with relish and no bad effects on the 
animal's system were apparent. The fact that the cow produced 
slightly more milk when given pomace than when given corn silage 
shows that the feeding of dried apple pomace had no untoward 
effect on the milk flow of this animal. 
"While there was a gradual increase in the milk flow during the 
first 30-day period, the decrease during the second and third periods 
was exactly the same. 
Although the data obtained are perhaps not sufficiently extensive 
to warrant the drawing of definite conclusions, the indications are 
that no bad effects follow the feeding of dried apple pomace. It 
caused no decrease in the milk flow or in the yield of butterfat. 
