
New Yorx AGcricutturRAL Experiment STATION. 1438 
ef During the entire period of three years these animals averaged, 
: while in milk, a monthly consumption of 2,435 pounds of water, 
of which 775 pounds, or 31.8 per cent., was in their food, and 
1,660 pounds, or 68.2 per cent., was drunk. 
f ‘These same animals, during the intervais between successive 
- periods of lactation, averaged a monthly consumption of 1,586 
pounds of water, or but 65.1 per cent. of the amount they con- — 
F sumed while in lactation, and of this amount 547 pounds, or 34.5 
“per cent, was in their food and 1,039 pounds, or 65.5 per cent, was 
- drunk. | 
2 _ di will be observed that the difference of >49 pounds between 
_ the total water consumed during lactation and when not in 
-miJk is largely accounted for in the averaye monthly yield of 
4 milk of 529 pounds; also that upon an average for the entire 
herd, there was 4.6 pounds of ae consamed for each pound 
e of milk produced. 




















Relation of Food to Milk. 
’ The following table presents the average results obtained at 
q this station for nearly three years with all the animals under 
q experiment, and only ‘for those months when they were in full 
or nearly full flow of milk. 
ft may be studied with great interest by those who dsire t9 
learn what constituents of food favor che increase in the quantity 
and quality of the milk product. 
: It will be seen that there was present in the food consumed an 
“aggregate of 8,277 pounds of crude fat aud the fat yielded in 
the milk was 7,145 pounds, or, if we allow 17.4 per cent. for the 
r verage impurity in the crude fat the food contained 95.67 per 
| ‘ce mt. of the fat found in the milk, and if the later periods of 
lactation were included, when the food remains nearly constant. 
b ut the milk yield falls off, it will be found that the food contains 
’ ery appreciably more fat than that recovered in the milk, and 
