198 AN AGRICULTURAL WAR PROBLEM 



production generally not only of fat, but of growth, 

 milk, or work. 



Table IV gives side by side the maintenance 

 and production starch equivalents of the foods 

 which have been on the market since the war 

 began. For comparison a few coarse fodders have 

 been included. It will be noticed that for coarse 

 fodders the maintenance starch equivalents greatly 

 exceed the production starch equivalents. Such 

 fodders, hay, straw and the like should therefore 

 be used for maintenance, that is to say for main- 

 taining the temperature and vital functions. If an 

 animal is required to produce anything, fat, meat, 

 growth, milk or work, its diet should be increased 

 by addition of some suitable concentrated food of 

 which the greater part of the digestible nutrients 

 are available for production. 



The object of the monthly notes was to show 

 the farmer how to buy and use unaccustomed foods. 

 It has been explained how the food unit method of 

 comparing values helped him to buy foods. It 

 must now be explained how Table IV has helped 

 him in using foods. This is perhaps best done 

 by an example. A standard ration for fattening 

 bullocks largely used by farmers is : 



Two bushels of swede turnips, weighing about 

 84 lb., 10 Ib. of straw, and 4 Ib. of a mixture of 

 linseed and cotton cakes, rising to 8 lb. as fatten- 

 ing proceeds. 



During last winter linseed and cotton cakes 



