SPEEDS OF HORSES 



57 



Rations Actually Fed to Horses and Digestible Nutrients and 

 Energy in Rations Calculated to Basis of 1,000 Pounds Live Weight. 

 (Continued.) 



a This value represents total carbohydrates plus 2.25 times the fat. (Agr. Dep. F. B. 170). 

 METHOD OF CALCULATING RATIONS. 



The feeding value of any ration may be readily calculated and 

 compared with the standards. Suppose a horse at moderate work 

 and weighing 1,200 pounds is fed 11 pounds of oats and 10 pounds 

 of timothy hay daily. The Wolff-Lehmann feeding standard for 

 horses at moderate work calls for 2.0 pounds of protein and 26,700 

 calories per thousand pounds live weight. A horse weighing 1,200 

 pounds would therefore require 1.2 times as much, or 2.4 pounds 

 protein and 32,000 calories. Oats contain 9.39 pounds of digestible 

 protein and 122,100 calories per hundred pounds. Eleven pounds 

 would therefore furnish 1.03 pounds of protein (9.39x0.11=1.03), 

 and 13,431 calories (122,100x0.11=13,431). Timothy hay fur- 



