THE CALCULATION OF RATIONS. EIS 
EXAMPLE OF CALCULATING: A RATION BY USE OF TABLE 52. 
Kinds and Amounts of Feeding Stuffs Fed by a Bristol Milkman, 
and thetr Estimated Nutrients. 












FEEDING STUFF. DIGESTIBLE NUTRIENTS, 
5 Carb 
Kind. fe) Protein. Fat. Ore | FuelaVvalies 
& hydrates. 
<q 
Lbs. Lbs. Lbs. Lbs. Calories. 
ane eee (.070X5) | (.035X5) | (.608X5) | (1410X5) 
350 pee 3.040 7050 
Buffalo gluten feed, |s {| (.178%5) | (1005) (4.96X5) | (1675X5) 
H .890 .500 2.480 8375 
Cotton seed meal, - 214 | (.376X 2%) | (131X234) | (.178X 2%) | (1580214) 
-940 328 -444 3950 
es ne (.042X5) | (0165) | (.422X5) | (930X5) 
J .210 .080 2.110 4650 
Enciace, ; Ne (.008 X40) | (.006X 40) | (.112X40) | (25040) 
.320 .240 4.480 10,000 
Total,  - -| — 207 13 12.6 34,025 
] 
Smavescatoee re | iY ss ee a KS) 52.68 
2.7 

* Multiply the weight of digestible fat by two and a half, and add the product thus obtained 
to the weight of digestible carbohydrates and divide this sum by the weight of digestible 
protein. ‘The quotient thus found is called the nutritive ratio. 
Our knowledge of rations in general and for milch cows in par- 
ticular, and its limitation, is referred to at some length in pages 
g4—1o1 of the present Report. Different as the “standards” for 
feeding milch cows, given in page roo, are from each other, it is 
probably true that 75 per cent. or more of the feeders of dairy stock 
in America would find that their herds would give better returns 
if they should try to make the rations which they feed conform 
to either of the four rations there suggested. This would follow 
not more from the improvement in the ration fed, than from the 
increased attention to details in care and handling which would 
follow better attention to feeding. The study of the individual 
animal which would be apt to be the outcome of this increased 
attention would doubtless, in most instances, result in an attempt 
to vary the ration of that particular animal so as to conform 
more nearly to its needs. 
