3°6 
Journal of Agricultural Research 
Vol. VII, No. 7 
DIGESTION EXPERIMENTS 
Experiment I.—The determination of digestibility was carried out 
with two sheep in the usual manner (12). The sheep were fed a ration 
consisting of 500 gm. of English hay, 150 gm. of gluten feed, 200 gm. of 
finely ground vegetable-ivory meal, and 10 gm. of salt with water ad 
libitum . Rations for the entire test were weighed out at the beginning 
and samples sent to the laboratory and immediately analyzed. The 
results are given in Table IV. 
Table IV .—Percentage composition of feeds tuffs used in Experiment I 
MOISTURE 
Constituent. 
Hay. 
Gluten feed. 
Vegetable- 
ivory meal. 
Moisture.. 
95 
88. 05 
10.07 ■ 
89-93 
12. 64 
87.36 
Dry matter.. 
Total. 
IOO. 00 
IOO. 00 
IOO. 00 
DRY MATTER 
Ash.. 
5. 81 
9 - 34 
2. 88 
3 1 * 7 o 
50-78 
1. 11 
26. 96 
3 - 94 
8. 70 
59 - 2 9 
i -37 
6. 02 
.67 
7. 02 
84. 90 
Protein. 
Fat.. 
Fiber. 
Nitrogen-free extract.. 
Total. 
IOO. 00 
IOO. 00 
IOO. 00 
The experiment lasted 14 days, 7 of which were preliminary; and 
during that time no disturbances in digestion were observed. The 
sheep ate the vegetable-ivory mixture readily. 
One-tenth of the daily manure excreted by each sheep was carefully 
dried and preserved. Eater these portions were composited and analyzed, 
the results being given in Tables V and VI. 
