FOOD NUTRIENTS 



49 



Coefficient of Digestibility. In the composition 

 of feeding stuffs, both the digested and unabsorbed 

 materials are included. The absorbed matter only 

 is of importance as food. The data obtained through 

 the digestion trials make known the percentage of 

 each nutrient digested. Such figures express the 

 digestion coefficient for each constituent of the food 

 consumed. In the table following are given the 

 figures representing the coefficients of digestibility 

 for each constituent of each feeding stuff previously 

 given. 



DIGESTION COEFFICIENTS OF SOME COMMON FEEDING 



STUFFS 



A marked variation is shown in this table. None 

 of the constituents are equally well digested. In 

 few instances are more than three-fourths of any 

 one substance absorbed into the system. With cot- 

 tonseed hulls but 6 per cent of the protein is 

 digested, but a large amount of the fat 79 per cent 

 is absorbed. 



