14 



to an acre of rape grazed twice. This is on the assump- 

 tion that it would require 5 pounds of an exclusive 

 grain ration to produce a, pound of growth. 



Grazing sorghum^ first experiment. 



Let us now return to the history of litter M, which 

 had grazed on rape until June 23, 1899. 



This litter of seven shoats was grazed on sorghum 

 from June 24 to September 2 , 1899, meantime receiving 

 daily a very small amount, about 1^ pounds per day 

 per shoat of a mixture of equal weights of cowpea meal 

 and corn meal. 



During this time the seven shoats made an aggregate 

 gain of 22.44 pounds and utilized 15,374 square feet of 

 drilled and cultivated sorghum, amid also grazed the 

 second growth on 8380 square feet, or about half of 

 this same plot. The grain meantime consumed was 

 812 pounds by the lot of seven shoats, or 3.6 pounds of 

 grain for each pound of increase in live weight. 



This is equal to- a gain of 635 pounds of live weight 

 per acre of sorghum, assisted by 2298 pounds of grain. 

 Assuming that if the grain had been fed alone 5 pounds 

 would have been required to produce one pound of 

 growth, we have left 195 pounds of growth attributable 

 to one acre of first growth sorghum and to about half 

 of the second growtli on the same. 



At 4 cents per pound 195 pounds of growth gives a 

 return of |7.80 per acre of sorghum. 



Doubtless the value of an acre of sorghum would 

 have been considerably greater if the second growth 

 on the entire area, instead of on half of it, had been 

 utilized. It was noticed that the shoats required per 

 week abouti twice as large an area of second growth 

 as of first growth sorghum. 



