Colorado Fodders. 
35 
is 50-63, which is in good agreement with that obtained by taking 
the sum of the separate extracts. 
table XL. 
COEEEICIENTS OE DIGESTION EOR THE PROTEIDS IN THE VARIOUS 
EXTRACTS OE NATIVE HAY. 
Fed. 
Orts. 
Con¬ 
sumed. 
Voided. 
Di¬ 
gested. 
Coef. 
Proteids soluble in 80% al¬ 
cohol . 
230.69 
47.53 
183.16 
66.47 
116.69 
63.71 
Proteids soluble in cold wa¬ 
ter and hot water and 
malt . 
69.86 
18.96 
50.90 
35.83 
15.07 
29.61 
Proteids soluble in 1% hy- 
dric chlorid . 
97.55 
23.12 
74.43 
27.52 
46.91 
63.03 
Proteids soluble in 1% sodic 
hydrate . 
383.60 
59.48 
324.12 
129.82 
194.30 
58.58 
Proteids soluble in chlorin, 
29.00 
4.93 
24.07 
27.01 
—2.94 
--- 
Proteids remaining’ in the 
cellulose . 
10.55 
2.08 
8.47 
11.95 
—148 
821.25 
156.10 
665.15 
298.60 
366.55 
55.11 
§85. The average coefficients of digestion found 
for the 
pro- 
teids in native hay, using three sheep, was 62.33, Colorado Experi¬ 
ment Station Bulletin No. 93, page 32. 
HEAT VALUE OE NATIVE HAY. 
§86. The energy was found to be equal to 4,349 calories for 
the dry hay and that of the dried feces was found to be 4,579 
ories. The calorific value of the fodder consumed was 46,034,165 
calories, thatiof the feces 23,778,747 calories; accordingly the ani¬ 
mals appropriated 22,255,418 calories, or 48.34 per cent, of the 
total energy. 
§87. The heat values or energy of the different extracts were 
not determined because, as stated in the description of this hay, it 
is made up of a mixture of grasses, sedges, etc., which varies so 
that this sample cannot be taken as representative except in a gen¬ 
eral way. ' 
AMID NITROGEN. 
§88. The proteids corresponding to the amid nitrogen in na¬ 
tive hay amounted to 0.513 per cent., but we were unable to find any 
in the feces, consequently we infer that they were wholly digestible. 
The better way to put this is that the quantity of amid nitrogen is 
so small that, as a fodder constituent, it is wholly negligible. 
METHOXYL group in NATIVE HAY. 
§89. This group is present in the hay to the extent of 1.795 
per cent., and in the feces to the extent of 2.764 per cent. The hay 
