14 



FEEDING VALUE OF CEREALS. 



experiment station in cooperation with the Bureau of Animal Indus- 

 try of the Department of Agriculture. In Kellner's work, however, 

 the values are expressed in different terms. It has been found a 

 that the production values hi Calories for the various nutrients cor- 

 respond to the production of a definite weight of body tissue, chiefly 



fat. The figures so obtained are as follows : 







TABLE VII. Production value of nutrients of foods. 



If one of these nutrients be selected as a standard and its value, 

 stated in Calories or hi pounds flesh gained, bs regarded as unity, the 

 total production value may also be expressed in terms of this unit. 

 Starch is the nutrient that has been taken as unity in this case, and 

 its value of 1,071 Calories per pound, or 24.8 pounds of fat gained 

 per hundred pounds, is the unit of measurement. The value of each 

 nutrient in pounds of starch is calculated, and from this the total 

 value of the food in pounds of starch, equivalent to 100 pounds of the 

 food, is obtained. This is termed the starch value (or ' 'Starkewert ") . 



There are, then, three terms in which the production value of a 

 food may be expressed: (1) Calories per 100 pounds; (2) pounds of 

 flesh gained per 100 pounds; (3) starch value per 100 pounds. These 

 three methods of expresssion are illustrated and shown compara- 

 tively in Table VIII, giving ths digestible nutrisnts and the indi- 

 vidual and total production values in terms of each unit described. 



TABLE VIII. Production value of various foods expressed according to three methods. 

 [Pounds per hundred pounds of dry matter.] 



'Kellner, loc. cit., pp. 153, 379. 



