24 
The Colorado Experiment Station. 
TABLE XIX. 
THE CALORIEIC VALUE OE THE VARIOUS EXTRACTS OE THE EECES 
(alealea hay) 
One gram of the alcoholic extract gives. 573 9 calories 
One gram of the cold and hot water, etc., extract gives.4123 calories 
One gram of the boiling 1 per cent, hydric chlorid gives. 4061 calories 
One gram of the boiling 1 per cent, sodic hydrate gives. 2997 calories 
One gram of the chlorin, etc., extract gives. 5842 calories 
One gram of the residue, cellulose, gives. 4294 calories 
table XX. 
COEEEICIENTS OE DIGESTION EOR THE HEAT VALUES OE THE VARIOUS 
extracts OE alealea hay. 
Heat 
Heat 
Heat 
Units 
Units 
Units 
CoefR- 
Consumed Voided 
Appro. 
cient 
Alcoholic extract . 
. 15,852,166 
5,113,449 
10,738,717 
67.75 
Aqueous 
extract* . 
. 5,074,240 
1,599,724 
3,474,516 
68.51 
One per 
cent, hydric chlorid 
extract 5,447,940 
2,448,783 
2,999,157 
54.75 
One per 
cent, sodic hydrate 
extract 10,156,378 
1,938,059 
8,218,319 
80.92 
Chlorin, 
etc., extract.: 
. 6,045,840 
4,708,652 
1,337,188 
24.03 
Residue 
or cellulose . 
. 11,522,770 
5,570,208 
5,952,562 
51.66 
§65. The coefficients of digestibility of the heat values of the 
various extracts show the same general features exhibited by the 
preceding tables, showing , in particular, the high value of the por¬ 
tion soluble in 80 per cent, alcohol which furnishes the largest por¬ 
tion by weight of dry substance digested—over one-third of the 
total nitrogen digested and one-third of the total heat units appro¬ 
priated. The sodic hydrate extract furnished, in the case of al¬ 
falfa the largest amount of nitrogen, one-half more than the alco¬ 
holic extract, less dry matter than either the cellulose or the alco¬ 
holic extract and one-fifth less heat than the alcoholic extract. 
§66. The values of the extracts, measured by the heat fur¬ 
nished, stand as follows for alfalfa:—Alcoholic extract, ii millions 
heat units; sodic hydrate extract, 8 millions; the insoluble portion 
of the fodder, the cellulose, 6 millions of heat units. 
§67. This order does not hold good for the other fodders 
examined in this manner. The alcoholic extract and the cellulose 
constitute two of the three most important portions of the fodder, 
but the hydric chlorid extract stands above the sodic hydrate as a 
source of heat in the corn fodder. 
TIMOTHY HAY. 
§68. The timothy hay used was the best that we could obtain 
in the open market and was grown in the mountains. 
§69. Though the hay appeared to be of excellent quality, the 
sheep did not do well on it, one sheep gained one-half pound in five 
*The 'aqueous extract includes all that was dissolved out by cold water, 
24 hours digestion, boiling with water for one hour and subsequently treating 
with malt extract. 
