DIGESTIBILITY OF MISCELLANEOUS ANIMAL FATS. 9 
Data of digestion experiments with hard-palate fat in a simple mixed diet. 
Weight 
of foods. 
Constituents of foods. 
Experiments, subjects, and diet. 
Water. 
Protein. 
Fat. 
Carbohy- 
drate. 
Ash 
Experiment No. 574, subject A. J. H.: 
Blancmange containing hard-palate fat 
Grams. 
1,329.0 
87.0 
305.0 
65.0 
Grams. 
522.8 
7.8 
265.1 
Grams. 
24.1 
9.2 
2.4 
Grams. 
201.7 
1.3 
0.6 
Grams. 
569.1 
67.3 
35.4 
65.0 
Grams. 
11.3 
1.4 
Fruit 
1.5 
1, 786. 
75.0 
795.7 
35.7 
25.7 
10.0 
203.6 
22.8 
180.8 
736.8 
18.8 
718.0 
14.2 
7.7 
6.5 
Per cent utilized 
28.0 
88.8 
97.4 1 45.8 
Experiment No. 575, subject P. K.: 
Blancmange containing hard-palate fat 
Wheat biscuit 
1,924.0 
357.0 
861.0 
69.0 
756. 9 
32.1 
748.2 
34.8 
37.8 
6.9 
292.1 
5.4 
1.7 
823.9 
276.0 
99.9 
69.0 
16.3 
5.7 
Fruit 
4.3 
Total food consumed 
3,211.0 
82.0 
1,537.2 
79.5 
26.0 
53.5 
299.2 
27.2 
272.0 
1, 268. 8 
20.2 
1,248.6 
26.3 
8.6 
17.7 
67.3 
90.9 
98.4 
67.3 
Experiment No. 576, subject C. J. W.: 
Wheat biscuit 
1,949.0 
341.0 
1,011.0 
81.0 
766.7 
30.7 
878.6 
35.3 
36.1 
8.1 
295.9 
5.1 
2.0 
834.5 
263.6 
117.3 
81.0 
16.6 
5.5 
Fruit 
5.0 
Sugar 
Total food consumed 
3,382.0 
110.0 
1,676.0 
79.5 
33.9 
45.6 
303.0 
25.2 
277.8 
1, 296. 4 
37.1 
1,259.3 
27.1 
Feces 
13.8 
Amount utilized 
13.3 
Per cent utilized 
57.4 
91.7 
97.1 
49. 1 
Average food consumed per subject per day 
931.0 
445.5 
21.6 
89.5 
366.9 
7.5 
Summary of digestion experiments with hard-palate fat in a simple mixed diet. 
Subject. 
Digestibility of entire ration. 
Esti- 
mated di- 
Experiment No. 
Protein. 
Fat. 
Carbohy- 
drate. 
Ash. 
gestibil- 
ity of 
hard-pal- 
ate fat 
alone. 
574 
A J. H 
Per cent. 
28.0 
67.3 
57.4 
Per cent. 
88.8 
90.9 
91.7 
Per cent. 
97.4 
98.4 
97.1 
Per cent. 
45.8 
67.3 
49.1 
Per cent. 
92.4 
575 
P K 
93 5 
576 
C. J. W 
95 2 
Average 
50.9 
90.5 
97.6 
54.1 
93.7 
It will be noted on referring to the above tables that the subjects 
ate on an average 22 grams of protein, 90 grams of fat, and 367 grams 
of carbohydrate daily, which had a fuel value of 2,366 calories. The 
protein, fat, and carbohydrate supplied by the total diet were 50.9 
per cent, 90.5 per cent, and 97.6 per cent digested, respectively. When 
corrections are made for the metabolic products and undigested fat 
resulting from the basal ration occurring in the feces the value, 90.5 
95191°— 19— Bull. 613 2 
