5o FEEDING FARM ANIMALS 



as being either wide or narrow. If two or more are 

 combined in the proper proportions to furnish all 

 the digestible nutrients, with no excess or shortage 

 of any nutrient, but in just the quantity needed by 

 a certain class of animals fed for a distinct purpose, 

 the combination is then satisfactory, and does pro- 

 vide a balanced ration. 



BALANCING THE RATION IMPROVES IT 



The two larger pigs at the right have been fed corn and tankage, while 

 the two smaller ones at the left have been fed corn only. This shows why a 

 balanced ration is worth while. 



Feeding Standards. For many years investi- 

 gators have been conducting feeding tests to learn 

 the amount of digestible protein, carbohydrates and 

 fat best for farm animals under average conditions. 

 They have studied the results of various foods and 

 varying amounts in thousands of animals. The re- 

 sults are embodied in what are called feeding stand- 

 ards. These tell the proper amounts of the nutri- 



