16 
BULLETIN" 631, U. S. DEPARTMENT OF AGRICULTURE. 
ity. When the test began, the 46 calves averaged 371 pounds in 
weight. During the summer months the calves had run with their 
dams upon a reasonably good pasture. These calves, during the pas- 
ture season, became infested with cattle ticks, as the cattle grazed in 
a very large wooded pasture of 20,000 acres and it was a difficult 
matter to find all of them at each dipping period. The ticks doubt- 
less interferred with the development of the calves. The calves that 
were used in the previous year's work were raised in a pasture that 
was almost, if not quite, free of ticks, and they were considerably 
heavier than the calves used in the present test. 
Table 7. — Weights, total gains, and average daily gains (Nov. 29, 1912, to 
Mar. 3, 1913). 
Lot 
No. 
Number 
of calves. 
Ration. 
Average 
initial 
weight 
of calves. 
Average 
final 
weight 
of calves. 
Average 
total 
gain per 
calf. 
Average 
daily 
gain per 
calf. 
/Cottonseed meal 
\Cottonseed hulls 
(Cottonseed meal, two-thirds 
Corn chop, one-third 
Cottonseed hulls 
Corn silage 
[Cottonseed meal 
4 Cottonseed hulls 
(Corn silage 
Pounds. 
)• 365 
393 
357 
Pounds. 
505 
508 
Pounds. 
140 
115 
497 
140 
Pounds. 
1.49 
1.49 
It is interesting to note the effect upon the daily gains of calves 
when one-third of the ration of cottonseed meal is replaced by corn 
chop. Each calf in lot 3 ate, on the average, 2.63 pounds of cotton- 
seed meal each day. Each calf in lot 2 consumed 1.76 pounds of 
cottonseed meal plus 0.88 pound of corn chop each day ; that is, each 
pound of corn chop replaced one pound of cottonseed meal. When 
this was done the last column in Table 7 shows that the daily gains 
were reduced materially. That is, one pound of corn was not equal 
to one pound of cottonseed meal as a fattening ration for calves. In 
lot 3, where cottonseed meal, cottonseed hulls, and corn silage were 
fed, the calves gained at the rate of 1.49 pounds daily. In lot 2, 
where a part of the cottonseed meal was replaced by corn chop (one 
pound of corn chop replacing one pound of cottonseed meal), the 
average daily gains dropped to only 1.23 pounds. The calves in lot 
1, where only cottonseed meal and cottonseed hulls were fed, gained 
at the rate of 1.49 pounds daily, or exactly the same as the daily 
gains recorded in lot 3. 
QUANTITY AND COST OF FEED REQUIRED TO MAKE 100 POUNDS 
OF GAIN. 
In the following statement cottonseed meal is valued at $26 a ton, 
cottonseed hulls at $7 a ton, corn silage at $3 a ton, and corn at 70 
cents a bushel. These prices represent fairly accurately the average 
