i8 



FOOD COST OF MILK AND BUTTER. 



DRV AND DIGESTIBLE MATTER REQUIRED TO PRODUCE MILK AND 



K UTTER. {Pounds). 



Character of Ration. 



Brewers' grains. 

 Wheat bran. . . . 



Dry matter required to 

 produce : 



o '^ 



p. 



6.93 



7.26 



19.01 



19.64 



Digestible matter required 

 to produce : 



The differences are in favor of the brewers' grain ration, but are 

 not especial!)' pronounced. 



APPROXIMATE FERTILIZER INGREDIENTS IN TOTAL RATIONS.* 



{Pounds). 

 Brewers" Grain Ration. 



108.34 lbs. nitrogen valued at $17.88 



2.70 



0.99 



63-74 " potash 



24-55 " phosphoric acid valued at. 



Total $21 57 



Wheat Bran Ration. 



98.47 lbs. nitrogen valued at $16.24 



69.79 " potash " 2.96 



33.80 " phosphoric acid valued at 1.36 



Total $20.56 



•Average figures taken for percentage of potash and phosplioric acid. 



