44 DEPARTMENT BULLETIN 149% U. S. DEPT. OF AGRICULTURE 
Table 22. — Average weights, -gains, gra dings, and refractive indexes of fats of 
|6 hogs fed rice polish and supplements followed by brewers' rice and 
supplements 
Item 
Arkansas, 
1925 
Arkansas, 
Mississippi, 
1924 
Iberia, 1924 
Number of hogs 
Initial weights pounds 
Check pigs: 
Grading 1 
Refractive index (back fat) \ 
Fat content of rice polish per cent-. 
Gain: 
Rice-polish period- 
Minimum pounds. 
Maximum do 
Average do 
Brewers' rice period — 
Minimum do 
Maximum do 
Average do— _ 
Ratio of gains: Rice polish to brewers* rice, 1 to 
Average daily gain: 
Rice-polish period pounds. 
Brewers' rice period do.— 
Slaughter weight do.— 
Grading: l 
Average 
Distribution 
Refractive index at 40° C. 
Back fat 
Leaf fat 
4S, 
83.9 
MS 
1. 4600 
12.6 
26 
60 
45.1 
62 
121 
91.4 
2.02 
0.80 
1.63 
206.3 
MS 
2MH 
1H 
1. 4598 
1. 4595 
IMS 
78.7 
S 
1. 4612 
13.6 
18 
55 
37.5 
117 
178 
143.8 
0.68 
2.57 
243.2 
MH 
2MH 
3H 
1. 4591 
1.4588 
4 
60.0 
S 
1. 4609 
14.0 
51 
84 
62.0 
118 
145 
128.8 
2.08 
1.11 
2.30 
243. 3 
H 
4H 
1. 4594 
1.4590 
5 
73.8 
MS 
1. 4601 
12.4 
51 
78 
65.2 
100 
140 
129.0 
2.00 
1.16 
2.30 
264.0 
H 
5H 
1. 4592 
1.4588 
Item 
Iberia, 
1926 
Roeria, 
1923 
General 
average and 
summary 
Number nf bo?s 
IS 
6 
46 
Initial weights 
- ..pounds. . 
66.7 
77.5 
72.48 
Check pigs: 
MS 
1. 4592 
H 
1.4585 
MS 
Refractive index (back fat) 
1.4600 
Fat content of rice polish . ___ 
per cent 
Gain: 
Rice-polish period — 
Minimum 
.. .pounds. . 
29 
72 
-' 18. 
Maximum 
do.... 
73 
91 
3 91.0 
Average 
do-.._ 
58.7 
85.8 
5S. 36 
Brewers' rice period- 
Minimum,. 
do—. 
50 
107 
-50 
Maximum. _. 
do.... 
130 
147 
3 178 
Average 
do.... 
101.9 
129.8 
114. 72 
1.85 
1.53 
1.97 
Average dailv gain: 
Rice-polish period 
do— 
0.9S 
1.45 
1.04 
Brewers' rice period. . 
do„_. 
1.82 
2.32 
2.05 
Slaughter weight 
do- 
212.7 
290.7 
234. 11 
Grading: > 
Average.. ... . _ __ 
H 
H 
H 
Distribution _ . 
1 MH, 17 H 
6H 
4S, 2 MS 
4 MH, 36 H 
Refractive index at 40° C: 
Back fat _ . . 
1. 4590 
1.4585 
1. 4586 
1.45S2 
1.4591 
Leaf fat 
1.4587 
i The initial letters =S, soft; Mt 
2 Actual minimum. 
2 Actual maximum. 
medium soft; MH, medium hard; H, hard. 
The softest lot was that of the Arkansas station in 1925. As in the 
lot for the following year, the gains on rice polish were relatively low. 
yet were sufficient to develop the maximum of softness. Although the 
gain on the hardening ration was twice that on the softening ration, 
the average grade of this lot was medium soft. Increasing total gains 
(softening plus hardening) and slaughter weights are associated with 
increasing firmness, with the possible exception of the Iberia. 1926, lot. 
