BULLETIN 613, U. S. DEPARTMENT OE AGRICULTURE. 
milk was substituted in the diet of an 11-months-old baby for normal 
goat's milk without any detectable difference either in the appetite 
or physical condition of the baby." 
The literature consulted gave no information as to the presence or 
absence in goat's milk and butter of the fat-soluble vitamin con- 
tained in v cow's butter. In view of the use of goat's milk for in- 
fant feeding, information on this point would be of especial im- 
portance, since goat's milk is in many parts of the world the com- 
mon household milk supply. 
A supply of goat's butter sufficient for the purpose of these ex- 
periments was obtained from the Dairy Division of the Bureau of 
Animal Industry. The butter was of a very pale-yellow color, 
without pronounced odor or flavor, and by those not informed of 
its nature it was taken for light-colored dairy butter. Since only a 
limited supply was available, no te,sts were made regarding its use in 
cookery, and the entire sample was incorporated in the usual corn- 
starch blancmange. 
Four experiments were conducted to determine the digestibility of 
goat's butter and the data which resulted are recorded in the follow- 
ing tables : 
Data of digestion experiments with goafs- 
milJc butter in 
a simple mixed diet. 
Weight 
of foods. 
Constituents of foods. 
Experiments, subjects, and diet. 
Water. 
Protein. 
Fat. 
Carbohy- 
drate. 
Ash. 
Experiment No. 645, subject A. F. 
Blancmange containing goat's milk butter. 
Wheat biscuit*. 
Grams. 
2,086.0 
245.0 
829.0 
152.0 
Grams. 
1,176.4 
22.0 
720.4 
Grams. 
54.8 
26.0 
6.6 
Grams. 
144.1 
3.7 
1.7 
Grams. 
699.0 
189.4 
96.2 
152.0 
Grams. 
11.7 
3.9 
Fruit 
4.1 
3,312.0 
76.0 
1,918.8 
87.4 
24.8 
62.6 
149.5 
11.3 
138.2 
1,136.6 
31.9 
1,104.7 
19 7 
8 
Amount utilized 
11.7 
Per cent utilized 
71.6 
92.4 
97.2 
59. 4 
Experiment No. 646, subject P. K.: 
Blancmange containing goat's milk butter. 
Wheat biscuit 
oooo 
o ** o ci 
1,020.3 
22.3 
436.3 
47.4 
26.3 
4.0 
125.0 
3.7 
1.0 
606.2 
191.7 
58.2 
191.0 
10.1 
4.0 
Fruit 
2.5 
Sugar 
Total food consumed 
2, 750. 
51.0 
1,478.9 
77.7 
18.0 
59.7 
129.7 
8.1 
121. 6 
1,047.1 
20.2 
1,026.9 
16.6 
Feces 
4.7 
Amount utilized 
11.9 
Per cent utilized 
76.8 
93.8 
9S. 1 
71.7 
Experiment No. 647, subject J. C. M. : 
Blancmange containing goat's milk butter. 
Wheat biscuit 
1,775.0 
316.0 
384.0 
175.0 
1,001.1 
28.4 
333.7 
46.6 
33.5 
3.1 
122. 6 
' 4.7 
.8 
594.8 
244.3 
44.5 
175.0 
9.9 
5.1 
Fruit 
1 9 
Sugar 
Total food consumed 
2, 650. 
70.0 
1,303.2 
83.2 
23.0 
60.2 
128. 1 
1 8.6 
119.5 
1,058.6 
32.4 
1,026.2 
16.9 
Feces 
6.0 
Amount utilized 
10.9 
Per cent utilized 
72.4 
93.3 
96.9 
CL5 
