COMPARATIVE VALUE OF FOODS. 



107 



DIGESTIBLE MATTER IN 1000 LBS. OF VARIOUS FOODS. 



The figures in this table will be found useful in 

 arranging the rations for farm animals ; the figures can, 

 however, only approximate to the truth, as with different 

 qualities of the same food, and different animals, some- 

 what different quantities of matter will be digested. The 

 figures given for carrots, mangels, swedes and turnips 

 are rather too high, as they have been assumed to be 

 entirely digested. 



1. Capacity of different Foods for producing Heat 

 and Work. The only basis on which the nutritive value 

 of foods of different composition can be compared is in 

 respect to their capacity for producing heat. The pro- 



