12 
BULLETIN 310, U. S. DEPARTMENT OF AGBICULTUBE. 
ton, and found that the average digestibility of the fat in the ration 
was 98.5 per cent. His investigation was carried out, however j 
under conditions very different from those herein reported, as he 
included in the basal ration large amounts of meat. 
A total of seven tests, each of three days' duration, was made with 
a diet containing a large quantity of mutton fat, and conditions paral- 
lel to those of the previous work were maintained throughout the 
experimental periods. The results are given below: 
Data of digestion experiments with mutton fat in a simple mixed diet. 
Weight. 
Water. 
Protein. 
Fat. 
Carbohy- 
drates. 
Ash. 
Experiment No. 93, subject R. L. S.: 
Blanc mange containing mutton fat. . . 
Grams. 
1, 581. 2 
467.1 
635.5 
49.2 
Grams. 
798.0 
39.7 
552.2 
Grams. 
26.7 
62.6 
5.1 
Grams. 
120.7 
5.1 
1.3 
Grams. 
628.7 
352.2 
73.7 
49.2 
Grams. 
7.1 
7 5 
Fruit . 
3 2 
2, 733. 
100.7 
1,389.9 
94.4 
24.4 
70.0 
127. 1 
34.2 
92.8 
1, 103. 8 
32.8 
1,071.0 
17 8 
9.2 
8 5 
74.1 
73.0 
97.0 
48 
Experiment No. 94, subject I. D. B.: 
Blanc mange containing mutton fat. . . 
1,895.6 
592.4 
1,397.0 
80.2 
956.7 
50.3 
1,214.0 
32.0 
79.4 
11.2 
144.6 
6.5 
2.8 
753.7 
446.7 
162.0 
80.2 
8.6 
9.5 
Fruit 
7.0 
3,965.2 
108.8 
2,221.0 
122. 6 
27.5 
95.1 
153.9 
29.8 
124.1 
1, 442. 6 
42.0 
1, 400. 6 
25 1 
9.4 
15.7 
Per cent utilized 
77.5 
80.6 
97.1 
62.5 
Experiment No. 95, subject W. D.: 
Blanc mange containing mutton fat.. . 
960.7 
262.0 
1,363.5 
32.3 
484.9 
22.3 
1, 184. 9 
16.2 
35.1 
10.9 
73.3 
2.9 
2.7 
382.0 
197.5 
158.2 
32.3 
4.3 
4.2 
Fruit 
6.8 
2,618.5 
79.6 
1,692.1 
62.2 
18.7 
43.5 
78.9 
21.7 
57.2 
770.0 
30.1 
739.9 
15.3 
9.0 
Amount utilized 
6.3 
Per cent utilized 
69.9 
72.4 
96.1 
41.2 
Experiment No. 96, subject E. M.: 
Blanc mange containing mutton fat . . . 
Wheat biscuit 
2,360.8 
366.4 
1, 482. 3 
82.2 
1, 191. 5 
31.1 
1,288.1 
39.9 
49.1 
11.9 
180.1 
4.0 
3.0 
938.7 
276.3 
171.9 
82.2 
10.6 
5.9 
Fruit 
7.4 
4,291.7 
132.6 
2, 510. 7 
100.9 
35.4 
65.5 
187.1 
33.7 
153.4 
1, 469. 1 
51.0 
1, 418. 1 
23.9 
12.5 
11.4 
Per cent utilized 
64.9 
82.0 
96.5 
47.7 
Experiment No. 131. subject D. G. G.: 
Blanc mange containing mutton fat . . . 
1, 508. 
765.0 
1, 042. 
122.0 
697.3 
65.0 
905.5 
29.2 
102.5 
8.3 
218.1 
8.4 
2.1 
556.9 
576.8 
120.9 
122.0 
6.5 
12.3 
Fruit 
5.2 
Total food consumed 
3, 437. 
122.6 
1,667.8 
140.0 
32.0 
108.0 
228.6 
26.9 
201.7 
1.376.6 
52.0 
1,324.6 
24.0 
Feces 
11.7 
Amount utilized 
12.3 
Per cent utilized 
77.1 
88.2 
96.2 
51.2 


