SKIM-MILK. 139 



milk and one whole milk. They were fed 62 

 days. The one fed skim-milk consumed 19.3 

 lbs. per day and gained 78 lbs. in 62 days, a 

 daily gain of IJ lbs. The calf fed whole milk 

 drank 11.9 lbs. per day and gained 73 lbs. in 62 

 days, a daily gain of 1.17 lbs. 



Estimating the skim-milk at 25 cents per 100 

 lbs. the 78 lbs. of growth on this calf cost $3; 

 cost per pound, 8.84 cents. With the calf fed 

 whole milk, estimating it to be worth $1 per 

 100 lbs., the 73 lbs. of growth cost $7.42, or over 

 10 cents per pound. These calves were both 

 pure-bred Jerseys. There was but one day's 

 difference in their ages. The one fed skim-milk 

 was a male and the one fed whole milk a 

 female. 



In experiment No. 2 pure-bred Holstein- 

 Friesian male calves were used. These calves 

 were fed 61 days. The calf on skim-milk diet 

 was fed 23.5 lbs. per day and gained 1.77 lbs. 

 per day. The calf fed whole milk drank 17.6 

 lbs. daily and gained 1.67 lbs. per day. In this 

 experiment with the calf fed skim-milk the 

 growth cost 3^ cents per pound, estimating the 

 skim-milk at 25 cents per 100 lbs., and the calf 

 fed whole milk made growth at a cost of 10| 

 cents per pound, estimating the milk to be 

 worth $1 per 100 lbs. 



Two other experiments were made in which 

 skim-milk only was fed. Prof. Plumb says in 

 closing: 



