384 



FEEDS AND FEEDING 



It is extra food given after the maintenance ration 

 has been served that gives the products for which the 

 animal is kept. The profits in feeding come only from 

 feeding a ration in addition to the maintenance ration. 



FULL RATION 



RATION FOR 

 MAINTENANCE 



RATION FOR 

 PRODUCT 



THREE-FOURTHS RATION 



HALF RATION 



RATION FOR 



MAINTENANCE 



NOTHING FOR PRODUCT 



From the above diagrams it is observed that a full 

 ration will give the maximum product and, if the ration 

 above the maintenance costs less than the product 

 produced, the maximum profit. If three fourths of a 

 full ration is fed, the product is cut in half, and if 

 one-half ration is fed, there is nothing left for the 

 product or profit. Liberal feeding is the only profit- 

 able feeding. 



It may be that the cow, for instance, fed on half of 

 a full ration may produce some milk, but she must do 



