244 



THE FEEDING EXPEKIMENTS 



The diagrams, Figs. 46 and 47, show, from some of these 

 results obtained with pigs, the amount of dry organic matter 

 required to produce 100 Ib. of increase, and also the proportion 

 of it which can be reckoned as nitrogenous matter. 



It will be seen from these diagrams that, speaking broadly, 

 neither the amount of dry food- stuff required for maintenance 



Ib. 



400 



300 



200- 



(00 



V 



Ratio 

 - 8= I 



6: I 



2: I 



4. 



C^s^sj Nitrogenous [Non-nitrogenous Ratio of non-nitrogenous 



FXXSSSNJ Substance | [Substance, to nitrogenous matter in food. 



FIG. 47. Nitrogenous and Non-nitrogenous Matter in Food required to produce 

 100 Ib. Live-weight Increase. Pigs. 



1. Bean and Lentil Meal, ad lib. 



2. Maize Meal, limited. Bean and Lentil Meal, ad lib. 



3. Bean and Lentil Meal, limited. Maize Meal, ad lib. 



4. Bran, limited. Maize Meal, ad Kb. 



5. Barley Meal, ad lib. 



6. Maize Meal, ad lib. 



per 100 Ib. live weight of the animal nor the amount required 

 to produce 100 Ib. increase in the live weight varied very widely, 

 whatever the character of the foods consumed. The amount 

 of nitrogenous substance did, however, show a very wide range 

 of variation, hence whatever was consumed above a certain 

 minimum could have been replaced without loss by purely non- 



