Principles of Feeding 67 
First Tria, Ration ror 1000-Pcounp Horse at MoprerateE Work 
e DiGcEstTIBLE NUTRIENTS 
Foop RY- NoutTRITIVE- 
Matter Baie Carbohy- ag Ratio 
drates 
14 lb timothy - «| 12.125 | 0.392 5.936 | 0.182 
10 lb. oats 2S BS 8.800 1.010 5.250 0.370 
2lb.bran. . . . . 1.770 | 0.242 0.742 0.056 
First trialration . . 22.726 1.644 11.928 0.608 1:8.0 
Standard . . . . .| 24.000 | 2.000 11.000 0.600 1:6.2 
This trial ration falls considerably below the standard in dry- 
matter and is too wide. We must therefore add a food rich in 
protein. We will try one pound of linseed meal, old-process : — 
Seconp Triau Ration For 1000-Pounp Horse at Moprerate Work 
DicEsTiBLeE NUTRIENTS 
Dry- NotTRITIvE- 
Foop M R 
ae Protein ag a Fat ie 
Ration as above. . .| 22.726 1.644 11.928 0.608 
1Ib. linseed. 2 0.902 0.302 0.320 0.069 
Second trial ration . .j| 23.628 1.946 12.248 0.677 1:7.0 
Standard . . . . .; 24.000 | 2.000 11.000 0.600 1:6.2 
The second trial ration is still slightly too low in dry-matter 
and protein, and somewhat too wide in the ratio. From these 
trial rations we learn the method of calculating ratios. 
124. Armsby’s method.—In this method it is necessary to 
know the digestible protein and the energy value for each food. 
The energy value is expressed in therms which is the quantity of 
heat required to raise the temperature of 1000 kilograms (2,204.6 
