THE NUTRITION OF THE HORSE. 



255 



These rations contained the following pounds of digestible nutrients 

 and therms of net energy : — 



In so far as weights and digestible nutrients were concerned, the horses 

 appeared to have received sufficient food for the work they were doing. 

 The therms fed fell below the standard theoretically required, which leads 

 one to question whether this standard is not too high. The horses still 

 appeared rather restless and hungry, although they performed their daily 

 task in a more satisfactory way. Beginning July 16 the ration was modi- 

 fied by reducing the amount of alfalfa fed daily to each horse to 10 pounds, 

 and adding 6 pounds of timothy mixture to Tom's ration and 5 pounds to 

 Joe's ration, the grain remaining as in the ration preceding. The object 

 of the change was to attempt to reduce the restless action manifested by 

 the horses, which in a measure was successful, and their weights were 

 maintained. 



Weights. 



Tom. 



Joe. 



July 16, 



July 23, 

 July 30, 

 August 6, 

 August 13, . 

 August 20, . 

 August 27, . 

 September 3, 



Beginning September 4, hay was substituted for the entire amount of 

 alfalfa, the grain ration remaining constant. The calculated digestible 

 nutrients and weights of the horses follow: — 



