180f ALFALFA. 
gestion coefficients of the ration. By taking the digestion 
coefficients of these feeding stuffs other than. alfalfa hay as 
determined by other experiments under similar conditions 
we can estimate the digestion coefficients of the alfalfa alone 
when fedin aration. The digestion coefhcients of corn used 
were taken from Jordan’s ‘‘The Feeding of Animals’’ and are 
as follows: Dry matter, 89.4 per cent; crude protein, 67.9 
per cent; ether extract (fat), 92.1 per cent; crude fiber, 58. 
per cent; nitrogen free-extract, 94.6 per cent. Likewise the 
digestion coefficients of barley meal used are: Dry matter, 
86. per cent; crude protein, 70. per cent; ether extract, 89. 
per cent; crude fiber, 50. per cent; nitrogen-free-extract, 92. 
per cent. For the mangels: Dry matter, 78.5 per cent; crude 
protein, 74.7 per cent; ether extract, 50. per cent; crude fiber, 
4.2.8 per cent; nitrogen-free-extract, 96. per cent. 
In calculating the calories of the feces estimated as re- 
sulting from foods other than alfalfa, the following factors 
were used: Protein, 5.65; fat, 9.4; and carbohydrates, 4.15 
Calories per gram. 
The details of these digestion trials are given in the fol- 
lowing tables: 
DIGESTION EXPERIMENT NO. 1. 
Kind of food.—Alfalfa hay. 
Duration of trial.—Five days. 
Steer No. 181.—Weight at beginning of experiment 795 
pounds; at close, 805 pounds. 
TABLE LXXXVI. 







Sam- Dry Pro- Crude pea Heat of 
ple Mat- | tein Fat Fi- ear Ash | Combus- 
No. ter |(Nx6 25} ber Be |i | tion 
| ex’t | | 
Ibs. Ibs. Ibs. Ibs. lbs. Ibs. | Calories 
1 niwAl fail faleseens ieee 79.70 | 13 69 2.04 | 27.29 | 29.89 6.79 | 153.320 
GianGi7, | MLDPE CCES eres cascek= see 25.86 3.20 .86 | 11.40 Tots: 3.06| 50.370 
| 
| 
Digestedhis...-e rss 53.84 | 10.49 1.8 | 15.89 | 22.56 3.73 | 1102950 
Pr. Ct. Digested...| 68.60 | 76.59 | 57.84 | 58.23 | 75.48 | 54.89 67.15 
Pr. Ct. of Energy | 62 37 
available to body | ap 
| 



During this experiment, the animal eliminated 132.5 
Ibs. urine containing 1.5 lbs. nitrogen. The nitrogen bal- 
ance was therefore as follows: Incomein food 2.19 Jbs.; 
