386 



IP*. 



Lot VII, grain and prairie hay 



The twenty head of lambs in these lots were given 

 the same quantity of grain as other lots and all the prair- 

 ie hay they wanted. The average grain ration for the 

 two experiments was 1.51 pounds of grain and 1.11 

 pounds of hay, per head daily. 



1914 Experiment 



Pounds 



Average weight at beginning 72 



Average weight at close 95 



Average gain per head daily, 87 days 23 



Valuing grain at one cent a pound and 

 prairie hay at six dollars a ton, cost of 

 producing 100 pounds of gain $7.45 



1915 Experiment 



Average weight at beginning 78 



Average weight at close 88 



Average gain per head daily, 60 days 16 



Valuing grain at one cent a pound and 

 prairie hay at six dollars a ton, cost of 

 producing 100 pounds of gain $10.47 



