RESULTS OF SOFT-PORK IXVESTIGATIOXS, II 
41 
Table 21. — Average weights, gains, gradings, and refract ice indexes of fats of 
15 hogs fed rice polish and supplements followed oy corn and supplements 
Item 
Coastal 
Plain, 1925 
Arkansas, 
1925 
Iberia, 
Arkansas, 
1926 
Number of hogs 
Initial weight pounds 
Check pigs: 
Grading » 
Refractive index of back fat 
Fat content of rice polish per cent 
Gain: 
Rice-polish period- 
Minimum pounds 
Maximum do__ 
Average do__ 
Corn period — 
Minimum do__ 
Maximum do__ 
Average do_. 
Ratio of gains: Rice polish to corn, 1 to 
Average daily gain: 
Rice-polish period pounds 
Corn period do__ 
Slaughter weight do__ 
Grading ' 
Average 
Distribution 
Refractive index at 40° C: 
Back fat 
Leaf fat 
27 S. 
28 
69.5 
MS 
33 
78 
55.6 
45 
118 
86.9 
1.55 
1.00 
1. 55 
201.0 
S 
1 MS 
1. 4602 
1.4593 
8 
81.4 
MS 
1. 4600 
12.6 
17 
85 
51.5 
61 
119 
94.3 
1.83 
0.93 
1.68 
211.9 
MS 
2 S, 3 MS 
3 MH 
1. 4601 
1. 4595 
20 
68.8 
MS 
1. 4592 
40 
63 
55.8 
65 
115 
88.5 
1.57 
1.00 
1.57 
196.5 
MS 
1 S, 12 MS 
6 MH, 1 H 
1. 4598 
1.4591 
73.9 
S 
1. 4612 
13.6 
19 
51 
31.9 
82 
126 
107.4 
3.34 
0.57 
1.91 
203.8 
MS 
1 S, 6 MS 
1H 
1. 4596 
1. 4592 
Item 
Mississippi, 
1924 
Iberia, 
1924 
General aver- 
age and 
summary 
Number of hogs 
Initial weight pounds.. 
Check pigs: 
Grading > 
Refractive index of back fat 
Fat content of rice polish per cent.. 
Gain: 
Rice-polish period- 
Minimum pounds.. 
Maximum do 
Average do 
Corn period — 
Minimum do 
Maximum do 
Average do 
Ratio of gains: Rice polish to corn, 1 to 
Average daily gain: 
Rice-polish period pounds.. 
Corn period do 
Slaughter weight do 
Grading: > 
Average 
Distribution 
Refractive index at 40° C: 
Back fat 
Leaf fat..; 
2M 
70.3 
S 
1. 4609 
14.0 
148 
109.3 
2.27 
0.86 
1.95 
221.0 
H 
H. 4H 
1. 4598 
1. 4595 
5 
75.8 
MS 
1. 4601 
12.4 
56 
75 
65.6 
90 
108 
95.6 
1.45 
1.18 
1.93 
230.2 
MS 
1.4603 
2 15 
386 
51.87 
2 45 
3 148 
92.70 
1.79 
0.93 
1.65 
204. 80 
H MS 
5 H 31 S, 22 MS 
11 MH, 11 H 
1. 4597 
1. 4592 
1. 4599 
1. 4592 
i The initial letters = S, soft; MS, medium soft; MH, medium hard; H, hard. 
2 Actual minimum. 
3 Actual maximum. 
The grading and refractive index of back fat of the check pigs 
which were killed as representative of each lot of hogs at the begin- 
ning of the experimental period show some noteworthy variations. 
The refractive index, which in this case may be more indicative of 
the condition of the fat than the grading, shows extremes of 1.4592 
and 1.4612, or a range of from hard to very soft. This difference 
was caused by the use of different rations previous to the experimen- 
