328 PRINCIPLES OF ANIMAL NUTRITION. 
COARSE FODDERS ALONE. 
Digested Carbohydrates. 
ree ; Energy of 
a Crude Fiber, Maroney: | Oe 
: Extract, 
Grms. 
A Meadow hay I............... 1262 2713 2113.7 
Il Meer re ees 1765 2610 3137.2 
Vv “ OO Bisawsetie: 2atar bak 1572 2315 2268.5 
VI e fe Bea ahate sane aint 1642 2420 2480.6 
XX a Me Me a8 } ae deemed a 1560 2999 2646.1 
I ef BE oN Di ceh cre deh thecal ae, Soak 1266 2348 2092.3 
B - “and oat straw.... 1702 2357 2331.2 
Ill Clover, “ “ Oe ease 1676 2226 2670.1 
IV me S ee Wey eedeidhs 1565 2145 2491.3 
COARSE FODDER ADDED TO BASAL RATION. 
Difference in 
Carbohydrates Digested. 
Methane, 
: . ethane, 
Animal. | Period. Kes. Nitrogen- Cals. 
rms. Putcnst, 
Grms. 
F. 1 Meadow hay V....... 546 836 689.9 
G 2 af a eer 538 886 907.4 
H 2 ef ae Eee 703 1129 727.2 
H 7 ee EON sas csi 739 1236 898 .0: 
J 2 re 6 Vise csc, 683 1213 984.8 
F 2 Oat straw II.......... 694 721 679.2 
G 1 a pce 0 Oe eee 595 684 923.4 
H 1 Wheat straw I........ 821 524 1213.0 
J 1 of ramet) meres ee 829 616 1281.0 
of the results given on pp. 304 and 306 for the digested crude fiber 
and nitrogen-free extract of coarse fodders, viz., 4.226 Cals. per 
gram. 
As a whole, the figures given on p. 329 show a tendency 
toward an increased production of methane with an increase in 
the proportion of crude fiber, but considerable variations are 
found in individual cases. It is evident, therefore, from these 
results, as well as from those already cited in connection with the 
experiments upon starch and upon molasses, that a variety of 
factors influence the extent of this fermentation. 
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