DIGESTIBILITY OF ALFALFA. 180k 
During this experiment, the animal eliminated 105.5 Ibs. 
urine containing 1.40 lbs. nitrogen. The nitrogen balance 
was therefore as follows: Income in food 1.87 lbs.; outgo in 
urine 1.40 Ibs.; and in feces .48 lbs.; implying a loss of .01 
Ibs.; nitrogen corresponding to .063 lbs. protein. The total 
heat of combustion of the urine as determined was 7444 
calories. 
DIGESTION EXPERIMENT No. 7. 
Kind of food.—Alfalfa hay, barley meal and mangels. 
Duration of trial.—Four days. 
Steer No. 181,.—Weight at beginning of experiment 905 
Ibs., at close 905 Ibs. 















TABLE XCII, 
Sam- Dry Pro- Grade Dene Heat of 
ple Foop CoNsuMED | Mat- | tein IDEN |Satiaces || ace. |) ZNSE Com- 
No. ter |(Nx6.25) ? ness bustion 
GXSE 
| Ibs. | Ibs. | Ibs. | Ibs. | Ibs. | Ibs. | Calories 
AL Alfalfa: hatyss:4sis-.- 55.Uu5 | 10.16 1.52 | 18.17 | 19.78 § 41 | 105,210 
42 Barley me allic-scssess 17.97 Peper k 48 85 3.77 56 35,680 
43 Wiha cele. ssc dseccesces Opa .84 ace 54 3.18 .66 9,840 
AGG Al es csceeisc sees 78.34 |13.31 PFN a lhe eral oy iets ar) 6.63 | 150.730 
44 NCCES Feaesaccccnteeaeekes 23.67 3.45 48'2)| LOALO 6.49 2.80 48,310 
Estimated feces from 5 2 Fe y 
food other than alfalfa} 3.65 .90 pela ate (eo H | as eee 81 | 6,451 
| 
Estimated feces - 
from*alfalfare- 2... 20.02 Pifayay sel! 9.37 5.27 1.99} 41,859 
Total amount di-| * 
mesitedhet si accssaeete: 54.67 9.86 1.30 9.46 | 30.24 3.83 | 102,420 
Estimated digestible Nees 
nutrieats in ovfalfa. ets) (0\s} TGl 81 8.80 | 14.51 3.42 | 63,351 
Per cent of total) avg 8 a a 
food digested........ | 69.80 | 74.10 | 61.32 | 48.37 | 82.33 | 57.77 67,95 
Estimated per cent of A | 
alfalfa Gipected cacares | 68.63 | 74.90 | 53.29 | 48.41 | 73.36 | 63.22 | 60,21 
Per cent of energy | 
available to body. 
LirMetOtale TO OM= sce.llleorssccecsallciecseciewsea| sos seensncel lasassvaseesllecessss cls es | Cee | 63.46 
IAT ret ere le eet beter neues | ee | 56.11* 
i} 



During this experiment, the animal eliminated 129.6 Ibs. 
urine containing 1.31 Ibs. nitrogen. The nitrogen balance 
was therefore as follows: Income in food 2.12 lbs.; outgo in 
* Calculated from digestible protein. 
