IO2 



FEEBlNG FARM ANIMALS 



that 10 pounds of hay and 15 pounds of grain are 

 often used in that proportion as a beef ration. Our 

 problem is to learn how nearly this combination of 

 the amounts given approaches the standard and if 

 any additional food may be given so as to improve 

 on the ration. By' consulting the table giving the 

 protein and energy values of feeding stuffs, we find 

 that in 100 pounds of clover hay there are 34.7 

 therms energy value, and in corn and cob meal 72.0 

 therms. Therefore we have : 



Therms 



In 100 pounds of clover hay 34.7 



In 150 pounds of corn and cob meal 108.0 



In 250 pounds of feed 142.7 



In 1 pound 565 



To supply 14 therms divide 14 by .565 to obtain 

 the number of pounds of this combination for the 

 daily energy requirements. 



Thus, 14 -f- .565 = 24.8 pounds, of which 1 % 5 , or 

 9.9 pounds, is to be clover hay and 1 %s, or 14.9 

 pounds, is to be corn and cob meal, or 10 and 15 pounds 

 each approximately. This quantity meets the energy 

 requirement, but is there enough or too much protein ? 

 This will be determined by proceeding as below : 



