13 



cake, gluten feed, and so on; fodder crops, green or cured; and diifer- 

 ent roots, tubers, and green vegetables. In quite recent times cane 

 molasses, beet molasses, and other beet-sugar by-products, have 

 assumed more or less importance in this connection. The composition 

 of a number of these different feeding stuffs may be seen b}^ reference 

 to the table below, which shows the average composition as determined 

 by anah^sis, and when possible the digestible nutrients furnished for 

 horses by each 100 pounds of the feeding stuffs, the latter data having 

 been calculated, as explained elsewhere (p. 40), by the aid of figures 

 obtained in digestion experiments with horses. In a number of cases 

 such calculations have not been made, for the reason that experiments 

 showing the digestibility of feeding stuffs had not been found, nor were 

 results of experiments made with similar feeding stuffs available. The 

 comparatively large number of feeding stuff's of which the digesti- 

 bilit^Mias not been determined indicates one of the lines of work which 

 might be profitably followed. 



Table 1. — Average composition of a number of feeding stuffs. 



1 Digestibility calculated from values obtained with green alfalfa. 



