444 
Journal of Agricultural Research 
Vol. XIV, No. 10 
(5) The object of feeding cottonseed kernels (diet 5) was for com¬ 
parison with what might be expected of cottonseed meal in view of its 
protein and ash content. This diet is practically identical with the 
diets of lots 1 and 2, except for the toxic factor, which is greatly dimin¬ 
ished but probably not entirely removed by extraction with ether. 
We may also call attention to the fact that this diet contained, on a 
basis of nitrogen content, the equivalent of approximately 35 per cent of 
cottonseed meal. 
Seven lots of three pigs each were fed in pens bedded with wood 
shavings. The pigs were Berkshires about 6 months old. 
The composition of the diets is given in Table VIII. 
The salt mixture supplied to lot 6 consisted of 350 gm. of calcium 
lactate (dry basis), 100 gm. of sodium chlorid, and 30 gm. of ferric 
ammonium citrate to each 100 pounds (45.35 kilos) of feed. 
The pigs were fed on diminished rations at first. The amounts fed 
were gradually increased until the pigs received all they would eat readily 
twice daily in the form of slop. The animals were supplied with city 
tap water. 
On the sixth day of the experiment it was necessary to cut down the 
ration of the pigs in lots 1 and 2. And from this time on, these pigs 
showed increasing dislike for their feed. Frequently at this time pigs 
in lot 2 (short-cooked meal) were observed by the feeder to vomit after 
eating. Finally, lots 1 and 2 were consuming only 5 pounds of feed per 
day as compared with 8 to 10 pounds for the other lots. This behavior 
was naturally reflected in the weight records. The animals in the other 
cottonseed-meal lots maintained excellent appetittes and showed good 
gains for a much longer period. 
Table IX gives the data on The feeds consumed by the various lots. 
Table IX .—Feed consumption (in pounds) by swine fed cottonseed products 
Period. 
Cotton¬ 
seed meal 1 
long- 
cooked 
(loti). 
Cotton¬ 
seed meal 2 
short- 
cooked 
(lot 2). 
Soybean 
meal 
(lot 3)- 
Peanut 
meal 
(lot 4). 
Ether- 
extracted 
cottonseed 
kernels 
(lots). 
Long-cooked 
cottonseed meal, 
supplemented. 
Lot 6 . 
Lot 7. 
1-20 days. 
136- S° 
135 * 50 
148. 00 
148. OO 
148. 00 
148. OO 
148. 00 
21-40 days. 
149 - S° 
116. 50 
214. OO 
212. OO 
168. 50 
208. 50 
205. 50 
41-56 days. 
78. 00 
76.50 
157 - 50 
x 57 * So 
I 39 * 5 ° 
148. 50 
141. 00 
41-60 days. 
201. 50 
201. 50 
178. so 
178. OO 
167. 00 
61-83 days. 
276. 00 
276. 00 
228. OO 
103. 90 
4. 00 
Total feed. 
0364. 00 
a 328. 50 
b 839 - 5 ° 
837 - So 
723 . OO 
638. 90 
S 2 4 - S° 
Total protein 
. 
concentrates.. 
9 1 * 30 
82. 10 
209. 90 
209. 40 
l80. 80 
191. 70 
178. 20 
Average per pig. 
Average food per 
30 * 30 
27.40 
69. 90 
69. SO 
60. 30 
63.90 
5 2 - 5 ° 
day for first 56 
days. 
6- 39 
S- 80 
9 * 3 i 
9, 28 
8. 51 
9-37 
8. 83 
a Amount offered. < Lots i and 2 frequently left much of their food. 
& The smallest pig in the soybean lot was slaughtered on the seventieth day, following an acddent by 
which its backbone was broken at the eleventh dorsal vertebra. For convenience, it is assumed that in 
lot 3 three pigs were continued at the same rate to the end of experiment. 
