350 CATTLE-BREEDING. 



tity of water upon quantity and quality of milk. 

 By inducing cows to drink more water the 

 quantity of milk yielded by them can be in- 

 creased in proportion up to many quarts per 

 day without perceptibly injuring its quality. 

 The amount of milk is proportional to the quan- 

 tity of water drunk. In experimenting upon 

 cows fed in stall with dry fodder that gave only 

 nine to twelve quarts of milk per day/ 7 it was 

 found "that when this dry food was moistened 

 with from eighteen to twenty-three quarts of 

 water daily, their yield was then from twelve 

 to fourteen quarts of milk per day. Besides 

 this water taken with the food, the cows were 

 allowed to drink the same as before, and their 

 thirst was excited by adding a little salt to the 

 fodder. The milk produced under this addi- 

 tional amount of water, on analysis, was pro- 

 nounced of good quality; and when tested for 

 butter was found satisfactory. A definite 

 amount of water could not be fixed upon for 

 each cow, since the appetite for drink differs 

 widely in different animals. He found by a 

 series of observations that the quantity of water 

 habitually drunk by 'each cow during twenty- 

 four hours was a criterion to judge of the quan- 

 tity of milk that she would yield per day. And 

 a cow that does not habitually drink as much 

 as twenty-seven quarts of water daily must be 

 a poor milker, giving only five and a half to 



