Heat 



Value 



of Food 



Calories. 



20,000 



Live weij,'lu, 



lrM_B-''''-'"r- 



Starch 

 Equiva- 

 lent. 



It>. 900 



1000 1 100 1200 1300 1400 1500 1600 1700 1800 



Fig. 23.— Diagram showing the Energy required from the Food 

 BY Oxen of Different Weights. 



[Fac£ fage 198. 



