Sept, a, 1918 
Comparative Toxicity of Cottonseed Products 
437 
Table II .—Effects of various diets on the growth of rabbits —Continued 
4 
$ 
Average weight. 
Percentage # food 
eaten is of initial 
weight. 
Diet No. 
*6 
! 
% 
Food. 
Initial. 
1 
Change. 
Duration and result. 
409 
3 
“Buco” cottonseed 
Gm. 
i, 5*5 
Gin. 
I, 648 
Gm . 
+133 
35 
Discontinued after 37 
433 
2 
feed. 
Long-cooked cotton- 
i> 333 
h 175 
1 
w 
w 
00 
days; 2 died in 40 
and 44 days; 1 not 
affected and bore 5 
young. 
Off feed in one week; 
3 
seed meal, No. 3.a 
Long-cooked cotton- 
11637 
h S °7 
-130 
19 
died in 26 days. 
One died on the 19th 
3 
seed meal, No. 2. 6 
Ether-extracted cot- 
1.707 
1, 868 
+ l6l 
27 
day, 1 on the 22d 
day, 1 slightly off- 
feed in 27 days. 
Discontinued after 27 
tonseed kernels. & 
days. In good 
health. 
a With dry alfalfa for roughage. & With fresh vetch for roughage. 
With such a range of gradations and with the animals being dis¬ 
tinctly affected in three to four weeks by even thoroughly cooked meals 
the results do not appear to us to be due to any lack of dietary essen¬ 
tials, especially in view of the very liberal feeding of fresh green food 
daily (collards, pea vines, vetch, clover, etc.). 
Although there was never the slightest evidence that the molasses 
mixed with the cottonseed products for feeding had any bad effect, it 
was thought advisable to feed the meal in a different type of diet. Ac¬ 
cordingly the animals were restricted to a monotonous dry diet con- 
taininf 40 per cent of alfalfa meal for roughage, 20 per cent of corn meal, 
10 per cent of ground oats, and 30 per cent of the cottonseed product 
or protein concentrate to be compared (Table III). It was found that 
the same relations held true of cottonseed meal, except that the animals 
were thrown off their feed considerably quicker than on the regular 
experimental diet. The rabbits were not made sick by the ether-ex¬ 
tracted kernels nor by soybean meal, but were quickly affected by the 
cottonseed-meal diets. The soybean meal was fed after the animals 
had been made sick on cottonseed-meal diets, and on this diet they 
regained normal appetite and weight. The long-cooked meal and the 
short-cooked meal were the same products as used in the rat, hen, and 
pig diets. 
The great sensitiveness of the rabbit to cottonseed meal may be made 
clear by comparing the upper limit of toleration of the meal with the 
weight of meal which hens of similar weight withstood without being 
seriously affected. On various meals the rabbits sickened or died after 
