July 22,1918 Composition and Digestibility of Sudan-Grass Hay 
181 
The composite samples of feces, together with those of hay and orts, 
were chemically examined according to the official methods. 
In Table VIII is given a summary of the hay and water consumed and 
the feces produced daily by each of the heifers. Only the net consumption 
of hay is given, and the feces production recorded opposite a daily con¬ 
sumption pf hay is the weight of feces produced in the 24-hour period 
following the day during which the recorded amount of hay was con¬ 
sumed. 
Table VIII. —Summary of weight of feed and feces 
Day. 
Hay consumed. 
Water consumed. 
Feces produced. 
Heifer 298. 
Heifer 301. 
Heifer 298. 
Heifer 301. 
Heifer 298. 
Heifer 301. 
3 . 
4 . 
5 . 
Total. 
Pounds. 
14. 2 
17. 0 
13.0 
7-9 
12.4 
Pounds. 
13*4 
16. 7 
11. 6 
10. 5 
14. 1 
Pounds. 
24 
39 
31 
28 
24 
Pounds. 
27 
29 
17 
27 
26 
Pounds. 
19. I 
21. 8 
24. 6 
21. 4 
23-9 
Pounds. 
14.9 
20. 9 
18. 4 
21. 8 
19. 8 
64- 5 
66. 3 
146 
126 
no. 8 
95 - 8 
The heifers had very similar capacities for hay consumption, the 
difference in their average daily consumption being only about one- 
third of a pound (Table IX). Their capacities for water consumption 
were also very much alike; the heifer which consumed the smaller amount 
of hay drank on the average 4 pounds more water per day than did the 
other heifer. The production of feces followed the water consumption 
very closely, and the heifer which consumed the smaller amount of hay 
and the greater quantity of water produced the greater weight of feces. 
Table IX .—Composition of hay 
Constituent. 
Hay 
offered. 
Hay 
refused. 
Hay 
consumed. 
Moisture. 
Per cent. 
I 3 * 19 
86.81 
5 - 97 
43-63 
28. 65 
I. 62 
6. 94 
Per cent. 
II. 64 
88. 36 
4. 10 
42. 85 
34 - 50 
1. 08 
s -»3 
Per cent. 
14. OI 
85-99 
6. 96 
44.04 
2 5 - 55 
1. 91 
7 - 52 
Dry matter. 
Protein. 
Nitrogen-free extract.. 
Crude fiber. 
Kther extract.. 
Ash. 
As was to be expected, the hay refused was a little more fibrous than 
the whole sample. The difference is so small, however, that the digestion 
coefficients found for the hay consumed will apply equally well to the 
whole sample. 
