33 



Tahlk 2. — Rations actnalhj fed to horses and digestible nutrieids and energtj in ratipus 

 calculated to basis of 1,000 pounds live weight — Continued. 



"This value represents total carbohydrates plus 2.25 times the fat. 



As will be seen, the average values for the protein and energ}^ in 

 the rations of the horses performing light work are considerably less 

 than similar values for horses performing moderate work. The data 

 for the former group is much more limited than for the latter, but the 

 relation is in accord with the commonly accepted theories. The farm 

 mules consumed a ration furnishing less protein and practically the 

 same amount of energy as horses performing similar work, though the 

 tests with mules are too few for general deductions. The rations of 

 the truck and draft horses performing severe muscular work furnished 

 less protein and energy on an average than the rations of the horses 

 25352— No. 170—03 3 



