360 



CORN 



ration. Smith* had this to say in regard to supplemental feeds with 

 corn for cattle on grass : "During a summer period of 30 weeks five 

 two-year-old Angus steers were fed an average of 17.8 pounds of 

 shelled corn each per day, making an average daily gain of 1.63 

 pounds. Another lot of five steers of the same kind were each fed 

 17.8 pounds of grain per day, consisting of 90 per cent shelled corn and 

 10 per cent of oil meal. These steers made an average gain of 2.02 

 pounds per day during the same time. The pasture was alike in both 

 lots. Those fed corn and oil meal required but 8.8 pounds of grain 

 for one pound of increase in weight, while those fed corn alone re- 

 quired 10.9 pounds. With pasture worth $3 per acre, corn worth at 

 that time 33 cents per bushel, and oil meal $25 per ton, each 100 

 pounds of gain on corn alone cost 13 per cent more than on corn and 

 oil meal. In this experiment, if the oil meal had cost $44 per ton, 

 instead of $25, nothing would have been saved by feeding it." 



CATTLE IN AN IOWA PEED LOT 



A Steer requires something hke 6 pounds of digestible carbonaceous 

 food to I of protein. Here again, corn alone or corn and corn fod- 

 der or timothy hay, are entirely too low in protein. One-third of the 

 value of the digestible constituents is lost from lack of balancing with 

 some concentrate high in protein or some roughage similarly consti- 

 tuted. At Nebraska alfalfa and corn gave 14 per cent larger gains 

 than prairie hay and corn, and 10 per cent more than prairie hay, 

 corn, and oil meal.** In tests at the Iowa Station corn and wheat 

 straw produced gains for $10.71 per 100 pounds; corn and grass for 



^Profitable Stock Feeding by H, R. Smith. Page 167. 

 **Iowa Bulletin No. 66. 



