88 FEEDING FARM ANIMALS 



of digestible protein, 38 per cent digestible carbo- 

 hydrates and fiber, the total crude fiber being 25 

 per cent; and 1.5 per cent fat. The process is as 

 follows : 



Starch value of 100 pounds = (5.4 X -94) + (38 

 (25 X 0.58) + (1.5 X 1.9) = 30-9 pounds. 



The protein is multiplied by .94, the starch equiv- 

 alent for protein; the carbohydrates and fiber are 

 reduced in accordance with the reduction factor as 

 assigned for the per cent of the total crude fiber; 

 the fat is multiplied by 1.9, the starch equivalent 

 for fat in clover hay. When these changes are made 

 the starch value of 100 pounds of clover hay is found 

 to be 30.9 pounds. 



In case a green fodder is used the process is very 

 similar. Take green alfalfa as an example, the 

 digestible nutrients contained in it being as follows : 

 Digestible protein, 2 per cent; digestible carbohy- 

 drates and fiber, 9 per cent; total crude fiber, 7 per 

 cent ; digestible fat, 0.5 per cent. 

 Starch value of 100 pounds = (2 X -94) + (9 (7 

 X 0.36) + (0.5 X i-9) =9-3 I pounds. 



Starch Values for All Classes of Stock. While 

 Kellner obtained his results from fattening oxen, it 

 is believed the starch values will apply equally well 

 to all classes of animals and for all kinds of produc- 

 tive purposes, provided, of course, enough protein is 

 furnished to meet the body requirements for this 

 food nutrient. A reasonable amount of fat is also 

 necessary if the full starch value of any combination 

 of feeding stuffs is to be secured. 



Feeding Standards on Basis of Starch Values. In 



