45 
The average results on the entire group of 46 hogs are convincing in 
showing that hard hogs can be produced by the feeding of brewers' 
rice subsequent to rice polish. The average refractive index of the 
back fat was 1.4591 compared to 1.4594 for hogs of similar weight 
grown and fattened on corn and tankage. The average firmness of 
the carcasses was approximately the same for the two methods of 
feeding. The difference of three points in the refractive index is 
explained by the fact that hogs which have been fed rice polish or 
rice bran show lower refractive-index grade limits than corn-fed hogs. 
(Table 1.) The results show that gains amounting to approximately 
a pound a day during the softening period of 56 days and about 
2 pounds per day during the hardening period of equal length pro- 
duced 87 per cent hard or medium-hard hogs weighing close to 
240 pounds. 
FEEDING RESULTS FROM RICE POLISH WITH TANKAGE, FOLLOWED BY CORN AND 
BREWERS' RICE WITH TANKAGE 
Feeding results (Table 23) are available from eight experiments in 
which rice polish was fed with tankage and minerals, with and with- 
out additional supplements, and followed by corn and brewers' rice 
with similar supplements. In 2 experiments the hogs were fed by 
the Arkansas station, in 1 by the Coastal Plain station, in 4 by the 
Iberia Farm, and in 1 by the Mississippi station. One hundred and 
seventy-six pigs were used and all were self -fed rice polish, tankage, 
and mineral mixture, by the free-choice method, during the first 
period. In four experiments the pigs were fed on green-oat or rye 
pasture and in the other four in dry lot. Skim milk was also fed in 
one experiment on pasture and in one in dry lot. 
Table 23. — Results of feeding rice polish with supplements, followed by corn and 
brewers' rice with supplements, on pasture and in dry lot 
Item 
Self-fed, free choice, on 
green-oat or rye pasture 
Iberia, 2 ex- 
periments and 
Mississippi, 1 
experiment 
Iberia, 
1 ex- 
peri- 
ment 
Self-fed, free choice, in dry lot 
Arkansas, 2 ex- 
periments, and 
Coastal Plain, 
1 experiment 
Iberia, 1 
experiment 
Basal feed used during softening period . 
Rice polish 
Rice 
polish 
Rice polish 
Rice polish 
Number of pigs used 
Average initial weight pounds. 
Average final weight do... 
Average gain weight.... do... 
Average number of days fed 
Average daily gain pounds. 
Average feed consumed per 100 pounds gain: 
Rice polish pounds. 
Tankage... do... 
Skim milk do.-. 
Mineral mixture do... 
Total feed consumed per 100 pounds 
gain 
Total feed, grain basis (6 pounds 
milk = l pound grain) 
60 
75.08 
136. 40 
61.32 
54.53 
1.12 
349. 30 
9.46 
11 
70.91 
148. 91 
78 
56 
1.39 
284. 03 
27.97 
225. 52 
5.13 
65 
72.24 
117. 37 
45.13 
56 
.81 
380. 66 
43.58 
3.52 
387. 44 
387. 44 
542. 65 
354. 72 
427. 76 
427. 76 
40 
68.23 
124. 45 
56.22 
56 
1 
336. 68 
12.81 
305. 82 
8.45 
663. 76 
408. 91 
