254 SCIENTIFIC FEEDING OF ANIMALS 



These ten animals were analysed 18-24 hours after 

 the last food was given, and the percentage com- 

 position is shown below : 



According to these figures the increase of body 

 substance during fattening had the following com- 

 position : 



Nitrogenous 



Mineral 



Dry 



Average 7.5 



66-6 



75-6 



24-4 



In considering the above figures it must not be 

 forgotten that they deal for the most part with 

 either young animals or those which have scarcely 

 completed their growth. Still, it is clearly shown 

 here that the increase of body substance on fattening 

 is composed at least of two-thirds of fat, a quarter 

 of water, and only to a very small extent of nitro- 



