CALF FEEDING IN ALABAMA AND MISSISSIPPI. 
25 
lion of his cattle and the available feeds, he can determine easily 
which feeds it will be most profitable to use, if he is given the data 
showing the amount of feed required to make 100 pounds of gain 
and the effects of such feeds on the quality of the carcass and knows 
the selling price of the animal. 
Table 13. — Quantity and cost of feed required 
(Nor. 13, 1914, to Apr. 5, 1915, 
to make 100 
14S days). 
pounds 
of gain 
Lot 
No. 
Ration. 
Feed to 
make 100 
pounds 
of gain. 
Cost of 
100 
pounds 
gain. 
Pounds. 
214 
346 
774 
207 
172 
86 
309 
690 
191 
112 
225 
331 
753 
217 
1 
1 Cottonseed hulls 
1 
I Corn silage 
> $6. 34 
) 
[Cottonseed meal, two-thirds 
? 
■{Cottonseed hulls. 
I 6.34 
(Alfalfa hay 
(Cottonseed meal , one-third 
1 
Corn-and-cob meal, two-thirds 
3 
J- 7.40 
Corn silage. 
1 
There is not a great variation in the amount of roughage required 
to make 100 pounds of gain on the calves of the various lots. Each 
lot received the same roughage. The calves of lots 1, 2, and 3 re- 
quired 1,327, 1,190, and 1,303 pounds of roughage, respectively, to 
make 100 pounds of gain in live weight. The calves of lot 1, which 
consumed a small amount of concentrate per day, ate more rough- 
age than either of the other lots and likewise they made a greater 
gain in weight than the calves of lot 3. The calves of lots 1 and 3 
required about 100 pounds more roughage to make 100 pounds of 
gain than the calves of lot 2. 
Since all the calves received the same kind of roughage and re- 
quired about the same amount of roughage to make 100 pounds of 
gain, a direct comparison can be made of the concentrates. 
When cottonseed meal was the sole concentrate the calves (lot 1) 
required 214 pounds to make 100 pounds of gain. The calves of 
lot 2 required 172 pounds of cottonseed meal and 86 pounds of corn- 
and-cob meal to make the same amount of gain, whereas the calves 
of lot 3 required 112 pounds of cottonseed meal and 225 pounds of 
corn-and-cob meal. 
In this test, when one-third of the cottonseed meal was replaced 
by an equal amount of corn-and-cob meal each pound of cottonseed 
meal proved to be equal to 2.05 pounds of corn-and-cob meal, and 
when two-thirds of the ration was made up of corn-and-cob meal 
each 1 pound of cottonseed meal proved the equivalent of 2.21 
pounds of corn-and-cob meal. This result has been in keeping with 
16709°— 18— Bull. 631 1 
