1801 ALFALFA. 
urine 1.31 Ibs.; and in feces .44 lbs.; implying a gain of .37 
lbs. nitrogen corresponding to 2.31 lbs. protein. The total 
heat of combustion of the urine as determined was 6767 
calories. 
DIGESTION EXPERIMENT No. 8. 
Kind of food.—Alfalfa hay, barley meal and mangels. 
Duration of trial—Four days. 
Steer No. 184.—Weight at beginning of experiment 910 lbs. 
at close 910 lbs. 
TABLE XCIII. 


Nitro- 
Sam- Dry Pro- Heat of 
ple | Foop ConsuMED | Mat-| tein | Fat Gide 2. | Ash | Com- 
No. ter |(Nx6.25) ext bustion 







lbs. lbs. lbs. lbs lbs. lbs Calories 
















41 | Alfalfa hay............ 53.34| 9.85] 1.47|17.60|19.17| 5.24] 104,320 
42 Barleysmealiescrcc+ 17.97 223i 48 fis) U lS 76 7¢ 56 35,680 
43 INGA eLSscescneacestssase 5.32 R84 12 54 Saks -66 9,840 
Motalleciescecsccecens 78.63 | 13.00 220% i 8.99 | 36.12 6.46 | 149,840 
45 TaN acoasonaoansoconoaned 23.11 Seplol: .75 9.59 6.84 2.82 47,280 
Estimated feces from 
food other thanalfalfa} 3.65 .90 milst 67/3} || Lee S81 6,451 
Estimated feces 
from alfalfa........... 19.46 Parl 64 8.86 aay) 2.01 40,829 
Total amount di- 
BOSCO. coccscrcscnecss Dene 9.89 1-32 9.40 | 29.28 3.64 |] 102,560 
Estimated digestible f 
nutrients in alfalfa..| 33.88 7.64 83 8.74 | 13.55 Sees 63,491 
Per cent of total 
food digested........ 69.84 | 76.07 | 63.77 | 49.50 | 81.06 | 56.34 68.45 
Estimated per cent of 
alfalfa digested ........ 63.51 | 77.56 | 56.46 | 49.64 | 70.68 | 61,64 60.87 
Per cent of energy 
available to body. 









During this experiment, the animal eliminated 135.5 lbs. 
urine containing 1.29 lbs. nitrogen. The nitrogen balance 
was therefore as follows: Income in food 2.07 lbs.; outgo in 
urine 1.29 lbs.; and in feces .50 Ibs.; implying a gain of .28 
Ibs. nitrogen corresponding to 1.75 lbs. protein. The total 
heat of combustion of the urine as determined was 6302 
calories. 
* Calculated from digestible protein. 
