469 



Table XI shows that the change in rations increased the rate of 

 gain . 7 pound per head daily, in Lot 4 ; .78 pound in Lot 5 ; and . 74 

 pound over that secured from the preceding six months feeding in 

 Lot 6. The cost of gains was decreased 50 cents in Lot 4, 90 cents in 

 Lot 5, and 65 cents per hundred pounds in Lot 6. The necessary 

 increase in value per hundred pounds in order to justify the change 

 in rations and continue the feeding period one month longer was 13 

 cents in Lot 4, 12 cents in Lot 5, and 17 cents in Lot 6, while the ac- 

 tual improvement was 95 cents per hundred in Lots 4 and 5, and 85 

 cents in Lot 6. There was a general increase in cattle values of 75 

 cents per hundred pounds which was in no way due to the change in 

 rations. 



A similar test was conducted the following year with four lots 

 of cattle after five months feeding which was reported in bulletin 

 No. 129. Lot i had been fed on shelled corn, cotton-seed meal, 

 clover hay and corn silage, Lot 4 on shelled corn and clover hay, 

 Lot 5 on shelled corn, cotton-seed meal and clover hay and Lot 6 

 on shelled corn, clover hay and corn silage. The only change made 

 in these rations was to add cotton-seed meal to the rations used in 

 Lots 4 and 6. 



