438 Journal of Agricultural Research, v 0 i. xiv, no. *> 
eating 17 to 35 per cent of their initial body weight when fed at the rate 
of 1 per cent or less per day, while hens withstood 600 to 700 per cent 
when fed at the rate of 1.25 to 1.6 per cent of body weight daily. 
Table III.— Effect of monotonous dry diets containing 30 per cent of concentrates on 
the growth of rabbits 
Period and rabbits No. 
Feed. 
Average weight. 
Change. 
Duration and results. 
Initial. 
Final. 
Period i : 
Gm. 
Gm. 
Gm. 
14, 16. 
Short-cooked cot¬ 
tonseed meal. 
I, 408 
I, 180 
—228 
Discontinued after 9 
days. Both ate lit¬ 
tle at end. No. 14 
became sick and 
died on 15th day. 
9 , io, II. 
1,289 
995 
— 284 
Died in 16, 19, and 
39 days. No. 9 
gained at first. 
29, 27.... 
Long-cooked cot¬ 
tonseed meal 3. 
L254 
L °95 
— I 59 
Discontinued after 
15 days. Off feed. 
23. 
Long-cooked cot¬ 
tonseed meal 2. 
1.873 
L 5°5 
-368 
Do. 
37. 38 . 
978 
1,038 
“ 50 
Discontinued after 
16 days. One died, 
the other improv¬ 
ed on this diet 
plus ferric ammo¬ 
nium citrate. 
39 . 40 , 41. 
Period : & 
E t h e r-extracted 
cottonseed ker¬ 
nels. 0 
982 
b 337 
+ 3 SS 
Discontinued after 
23 days. In good 
health. 
16,13,23,27,29.. 
Soybean meal. 
1,298 
l > 599 
+3 01 
Discontinued after 
19 days. All in 
good health. 
0 After 1 month on this diet the rabbits seemed rather tired of it, but had continued to gain and showed 
no sign of sickness. 
b Period 2: the rabbits which were off feed on the cottonseed mixtures were changed to a similar mix¬ 
ture containing soybean meal. 
EXPERIMENTS WITH POULTRY 
In order to ascertain whether excessive amounts of cottonseed meal 
had any pronounced effect on fowls and also to study the reputed effect 
of the meal on the pigmentation of the yolk, several short experiments 
were conducted. The fact that the birds were alive and laying to some 
extent at the end of 170 days indicates the slight extent to which hens 
are affected by cottonseed meal. The meal used was made from kernels 
cooked for two hours under the same conditions those used in the long- 
cooked meals of the rat, rabbit, and pig experiments. Later, in one diet 
a short-cooked (28 minutes) meal was used. The composition of the 
diets is given in Table IV. 
