140 FARM ARITHMETIC. 



467. When fed to 320-pound hogs ? 



468. How much profit on every hundred pounds of 

 gain when feeding 42-cent corn to 78-pound hogs, the 

 selling price of hogs being 6 cents per pound live weight. 



469. In feeding 42-cent corn to 320-pound hogs ? 



470. How much profit is made on 100 pounds gain by 

 feeding 56-cent corn to 78-pound hogs, the increase being 

 worth 5 1^ cents per pound live weight ? 



471. In feeding 56-cent corn to 320-pound hogs what 

 is the profit on 100 pounds gain ? 



472. Suppose corn is worth 56 cents per bushel and 

 hogs 6 cents per pound live weight. What is the profit or 

 loss in producing 100 pounds of increase by feeding the 

 78-pound hog? 



473. By feeding the 320-pound hog? 



474. The amount of grain required to add a total of 

 3,000 pounds to the weight of hogs of 320-pound weight 

 would add what weight to hogs of the 78-pound class ? 



Important truth. Hogs return to their owner the 

 greatest relative profit if sold at an age of from six to 

 nine months. They then weigh between 150 and 200 

 pounds. Hogs weighing from 300 to 400 pounds are 

 usually sold at a loss. Only when feed is cheap and 

 prices high can heavy hogs be produced at a profit. Feed- 

 ing beyond the point at which the cost of production 

 equals the selling price always entails an actual loss. 



Poultry. Poultry raising is not a specialized indus- 

 try in the United States. Except in a comparatively 

 few instances it is a side issue of the general farming 

 activities. Nevertheless, it is one of the most important 



