ii8 



PROFITABLE POULTRY PRODUCTION 



systems of feeding will be worked out. So far the 

 chemical composition of feeds and the analogies 

 between poultry feeding and animal feeding are the 

 only guides for working out balanced rations for 

 poultry. 



In the table given below Prof. James Dryden, 

 of Oregon, shows the composition of feeds com- 

 monly given to poultry: 



*New Process. 



NUTRITIVE RATIO 



What is called the nutritive ratio is the proportion 

 existing between the content of protein and that of 

 fat and heat-producing constituents. To produce 

 eggs, what is called a narrow nutritive ratio should 



