APPLE BY-PRODUCTS AS STOCK FOODS. 
31 
hay per animal and a quantity of mixed concentrates, 42 depending 
on the yield of butterfat. The concentrates were fed at the rate of 
10 pounds per pound of butterfat produced. The milk was weighed 
at each milking, and for 2 or 3 days near the middle of each 10-day 
period samples were taken from each cow for fat testing. The but- 
terfat production results thus obtained were used in determining the 
quantity of concentrate mixture to be fed the following 10 days. A 
more accurate comparison of the relative milk production values of 
the two feeds might have been possible had the animals' weights 
been more closely controlled. A summary of the experimental data 
is given in Table 14. The apparent discrepancy between the figures 
for quantity of concentrates fed and those for butterfat multiplied 
by 10 is accounted for by the fact that the butterfat yield decreased 
consistently for both groups of cows, so that while the animals were 
receiving quantities of food based on a certain fat yield, they were 
actually producing less butterfat. 
Table 14. 
-Comparison of yield of milk from 6 cows fed on dried apple-pectin 
pulp with that from 6 cons fed on dried beet pulp. 1 
Feed consumed. 2 
Yield.* 
Mixed concen- 
trates. 
Alfalfa hay. 
Beet pulp 
(moistened). 
Pectin pulp 
(moistened). 
Milk. 
Butterfat. 
Changes 
in body 
weight. 3 
Total. 
Per 
pound 
of 
butter- 
fat. 
Total. 
Per 
pound 
of 
butter- 
fat. 
Total. 
Per 
pound 
of 
butter- 
fat. 
Total. 
Per 
pound 
of 
butter- 
fat. 
Total. 
Per 
pound 
of 
butter- 
fat. 
Lbs. 
1, 839. 2 
1,627.6 
Lbs. 
10.7 
10.6 
Lbs. 
1,800 
1,785 
Lbs. 
10.5 
11.7 
Lbs. 
7,200 
Lbs. 
41.9 
Lbs. 
6,' 759* 
Lbs. 
' 44.2' 
Lbs. 
4,976.5 
4,375.7 
Lbs. 
28.96 
28.60 
Pounds. P.ct. 
171.86 3.453 
152.93 3.495 
Lbs. 
+ 109 
— 67 
1 Feeding period, 30 days. 
'* These figures represent the total feed consumed and yields by the animals in both groups while receiv- 
ing the two pulps, respectively; hence they are the totals for 6 cows for 30 days. 
a Total. 
The results of this trial were less favorable to the pectin pulp than 
those in the preliminary test where corn silage was used. Its rela- 
tive palatability appeared to be lower, as three of the six cows re- 
fused part or all of it at one time or another during the experiment. 
At no time was the beet pulp refused by any of the cows. Even i i 
only the data for the three cows that ate the pectin pulp at all times 
be taken, the milk yield is favorable to the beet pulp, 2,678.8 pounds 
of milk being produced on the pectin pulp ration and 2,804.7 pounds 
on beet pulp. The data for all six animals show that when on apple- 
pectin pulp, the cows ate less succulence, produced less, and lost in 
weight, whereas while on beet pulp there was a gain in total weight. 43 
For each pound of butterfat produced more food was consumed 
while on the pectin pulp ration. 
42 The concentrate mixture was composed of corn meal, 100 pounds: mound oats. 100 
pounds; wheat bran, 100 pounds; linseed meal, 50 pounds; and cottonseed meal, 50 
pounds. 
43 At the beginning of the principal test against beel pulp, one cow of the first lviir 
started showed a remarkable increase in milk production for the 10-day transition period 
over the previous 10 days. This pair of ani nals had been receiving a ration in which 
corn silage constituted the succulence and the gain was made on changing to the pectin 
pulp. The other cow of this pair showed a much less pronounced decrease and just 
previously her concentrate allowance had been cut one-third. 
