316 
TABLE No. IV. 



' Per cent. of 
S2a.| Percent.of | Percent.of |total albumin- 
iG = 8 digested undigested | 048 dig See 
2 3 s x albuminoids. | albuminoids. digestion—co- 
58 82 efficient. 
ou) 
1 2 1 2 1 2 
Peale) ioeck.: ose cess ee 24.3812 | 21.812 | 21.312 2.500 8.000 89.71 87.66 
Linseedimeégi <5. S32 8 feet 24.500 | 31.032 | 380.750 3.468 3.750 89.94 89.11 
Crished oat8 4.2. 42.2. PLE oSe 2 11.875 9.728 9.748 2.152 2.127 81.79 82.00 
Tay tere neeeree ces we Sous smeas 12.187 6.110 6.110 6.077 6.077 49,23 49.23 
BOdGeMnCOlMueere nsec. wae see ee 7.812 5.000 4.844 | 2.812 2.968 64.00 63.00 
StAVenure lune eee:. 2s eee ess 21.062 | 15.144 | 15.762 5.918 5.300 71.89 74.83 
For digestion, a ration was prepared from samples of the same 
substances and in the same proportions as constituted the ration in 
period II of the digestion experiments previously performed at this 
station, the results of which were given in the report for 1884. 
The following table gives the co-efficients of digestibility obtained 
for the ration, also as calculated for each constituent of it : 
TABLE No. V. 
be a5 ae 
Sa lad a2 | 2aS lads 
Bas (She .| Sa | Sus (Ske . 
Foun [SSSR tod | +86 |gses 
S86 g/S8Ex| ows 2 8 SEER 
SAZSSSEA| Sa | SSS SSE oe 
Z Ay Ay = Pay 
RSBION tc etc aac ee Scan es Bole a me ee ee SER 7.984 5.766 2.168 42.63 
Knstiage inorationte:: 222 eae oe eee 10 7.312 5.369 1.943 73.56 
Corntmeéalint ration." oa.) oe ee A ee 26 | 10.875 9.774 1.101 89.87 
Wiheat: brav iin ration: 22 citree sf See oe os 11 | 15.875 | 14.77 1.101 93.06 
The digestion co-efficients obtained by the Pepsin method, are 
higher than those found with animals. Many reasons may be as- 
signed for this variation, particularly with animals where there is 
greater liability to error and so many almost uncontrollable influences 
—the individuality of the animal, nervous influences, environments, 
temperature and the necessary compounding of a ration instead of a 
single feed,— enter in to vitiate the results. The errors incident to 
such experiments are entirely eliminated in the Pepsin method and 
uniformity secured for each test. 
Further, the digestion co-efficients for ensilage, corn meal, and 
wheat bran, compounded in a ration and digested, were higher than 
were obtained where each was digested separately. 
The following table gives this difference. 
Per cent. digested Per cent, di- 
in ration. gested sepa- 
(Caleulated) rately. 
Birsilaice SU a Sau) es eae DOs 61.35 
Cofh. meg] it ST BITe OE.) DORE Dg 89.87 86.15 
Witeat bran ty: 2 QU ety a IE aS 93.06 83.26 

Neer eee ease 
