96 



EXPERIMENT STATION. 



[Jan. 



Total and Average Daily Yield of Milk (Pounds). 



First period: both herds, standard grain ration. 



Herds. 



Total Herd 

 Yield. 



Average 

 Daily Yield. 



Herd I., 

 Herd II., 



2,332.5 

 2,405.3 



22.2 

 22.9 



Second period: Herd I., standard ration; Herd II., cottonseed meal ration. 



Herd I., 

 Herd II., 



3,856.3 

 3,898.1 



21.9 

 22.2 



111 the first period Herd II. produced 3.1 per cent, more milk 

 tlniii Herd I., and in the second period 1 per cent. more. It 

 would appear, therefore, that the amount of protein fed in the 

 first jjeriod was ample, and that the increase given to Herd 

 II, in the second period was not needed and did not increase 

 the milk flow. In the first period Herd I. gained 6 pounds in 

 live weight, and Herd II., 83 pounds. In the second period 

 Herd I. lost 87 pounds, and Herd. II., 73 pounds. 



Average Composition of the Herd Milk {Per Cent.). 



First period; both herds, standard grain ration. 



The analyses for the first period represent the average of 3 

 separate samples, each covering a period of five days; those for 

 the second period represent the average of 5 separate samples, 

 each covering a period of five days. Each five-day composite 

 represented the average composition of the herd milk for one 

 week. The separate analysis of each cow's milk was not made. 



