Ration Experiments with Swine, 1906-1908. 7 
TABLE 15. (See Table F, in Appendix) 
DIGESTIBLE NUTRIENTS REQUIRED FOR 100 LBS. GAIN, ALL PENS 
PEN NO. 
TOTAL; 
GAIN 
(Lbs.) 
POUNDS OP DIGESTIBLE NUTRIENTS 
REQUIRED FOR 100 LBS. GAIN 
NUTRITIVE 
RATIO 
Protein 
Carbo-Hydrates 
Ether Extract 
I. 
1066 
49.51 
377.49 
9.01 
7.8 
11. 
1145 
49.25 
366.41 
22.18 
7.9 
Ill. 
1303 
42.64 
319.42 
13.42 
7.81 
IV. 
1153 
43.19 
328.10 
8.08 
8.05 
V. 
1112 
62.41 
252.43 
5.86 
4.27 
VI. 
1168 
46.40 
273.63 
12.65 
6.55 
VII. 
1299 
52.19 
281.60 
12.76 
5.98 
VIII. 
1417 
41.78 
259.84 
21.99 
6.40 
IX. 
940 
63.09 
690.21 
8.98 
11.28 
X. 
863 
69.29 
741.13 
24.36 
11.54 
1907-1908 EXPERIMENT 
Six lots with eight head in each lot were fed during this ex¬ 
periment. They were fed during the same season of the year and 
were the same class of hogs and of about the same weight as those 
described in the previous experiment. The experiment lasted fif¬ 
teen weeks—two weeks longer than the previous winter’s experi¬ 
ment. The pigs were of uniform breeding, age, and condition. 
The most promising rations, as shown by the previous win¬ 
ter’s feeding, were tried again and selected tankage was tried with 
various grains. 
TABLE I. 
FEED FOR Gx\IN AND COST OF GAIN 
(Eight pigs in each pen) 
Pen 
RATION 
AV. 
GAIN 
PER 
HEAD, 
15 
WEEKS. 
LBS. 
POUNDS op feed for 
100 POUNDS GAIN 
‘cost 
OF 100 
LBS. 
STAND¬ 
ING OF 
LOTS 
No. 
Grain 
Tankage 
Hay 
GAIN 
1 . 
Barley three parts, corn three 
parts, alfalfa hay at pleasure. 
116 
496 
56 
$5.10 
4 
2 # 
Barley three parts, corn three 
parts, tankage one part. 
171 
338 
56 
.. 
$4.50 
1 
3. 
Barley six parts, tankage one 
part . 
158 
367 
61 
$4.89 
3 
4. 
Corn six parts, tankage one part 
164 
353 
59 
• • 
$4.71 
2 — 
5. 
Durum wheat six parts, tankage 
one part . 
i 161 
360 
60 
$6.60 
6 
6. 
Durum wheat three parts, corn 
three parts, tankage one part. 
173 
334 
56 
$5.30 
5 
* Note—Prices of feed figured as follows: 
Corn and barley at one cent per pound. 
Wheat at one and one-half cent per pound. 
Tankage at $40.00 per ton, (two cents per lb.). 
Alfalfa at $5.00 per ton. 
