Colorado Fodders. 
2T 
table XI. 
COEEEICIENTS OE DIGESTION EOR THE PROTEIDS DISSOLVED OUT OF 
alfalfa hay by The various solvents.'*' 
Fed. 
Orts 
Con¬ 
sumed. 
Voided. 
Di¬ 
gested. 
Coef. 
Proteids soluble in boiling 80 
per cent, alcohol. 
640.88 
46.47 
594.41 
108.82 
485.59 
81.69 
Proteids soluble in cold wa¬ 
fer . 
90.79 
26.05 
64.74 
42.60 
22.14 
34.20 
Proteids soluble in hot water 
and malt . 
134.85 
9.87 
124.98 
68.53 
56.45 
45.17 
Proteids soluble in 1 per ct. 
hydric chlorid . 
126.84 
1.18 
125.66 
50.47 
75.19 
59.84 
Proteids soluble in 1 per ct. 
sodic hydrate . 
937.28 
75.58 
851.70 
154.20 
697.50 
81.89 
Proteids soluble in chlorin, 
sodic hydrate and sulfur- 
rous acid . 
45.40 
5.92 
39.48 
50.01 (- 
—10.53) 
Proteids remaining in the 
cellulose . 
17.36 
1.28 
16.08 
13.43 
2.65 
16.48 
1817.05 
488.0'6 
1328.99 
72.92 
§6i. The coefficients of digestion found for the proteids by 
the usual method, and given on page 23, Bulletin 93, are for sheep 
No. 4, 73.68 per cent.; sheep No. 5, 73.58 per cent.; sheep No. 6, 
70.36 per cent.; the average is 72.54 per cent. The coefficient 
found by calculating it from the sum of the respective extracts of 
the hay, and dung is 72.92 per cent, actually in better agreement 
with the two higher coefficients found for sheep No. 4 and 5, than 
the result obtained for sheep No. 6. 
§62. This coefficient, 72.92, would be slightly changed if we 
made a correction for the amid nitrogen found, but this is nearly 
correct for the total nitrogen. This statement applies to all the 
coefficients for the proteids. 
THE CALORIFIC VALUE OF ALFALFA HAY. 
§63. The calorific value of the hay was determined by means 
of the bomb calorimeter. By hay, we mean the air-dried hay as 
fed to the sheep; it contained 7.75 per cent, moisture and 11.77 
cent. ash. Its calorific value was 4,050 calories,f and that of the 
dung was 4,300 calories. The total hay consumed by the three 
sheep was 12,364.8 grams. The air-dried feces weighed 4,630.5 
grams, which shows that the animals used 62.30 per cent, of the 
total heat value of the hay. I have assumed that the orts did not 
*I have used the term proteids in this place to sig-nify the product of 
the nitrogen multiplied by 6.25. This remark applies to all of the fodders. 
Everyone knows that this is conventional and does not mean that there is 
only one class of nitrogenous compounds present. 
fThe Calorie used throughout this Bulletin is the small calorie. 
