RELATIVE VALUES OF FEEDING STUFFS 



607 



swine for crude fiber, added straw pulp, young grass and wheat 

 chaff to basal rations. Their average results were as follows : 



TABLE 172. DIGESTIBILITY BY SHEEP AND BY SWINE 



The amount of straw pulp added to the basal ration was com- 

 paratively small, so that the results on this material are sub- 

 ject to relatively large errors (161), but the conclusion seems 

 indicated that pure cellulose, freed from encrusting matter, can 

 be readily digested by swine, and this conclusion is fully sup- 

 ported by the later determinations of Fingerling, Kohler and 

 Reinhardt. 1 For the crude fiber of ordinary feeding stuffs, 

 on the contrary, the digestive power of the swine was decid- 

 edly inferior to that of the sheep. 



A general idea of the relative digestive power of swine and 

 ruminants may also be gained by a comparison of the average 

 results obtained for the two species on feeding stuffs of the same 

 name although not of identical composition, as shown by com- 

 pilations like those by Kellner 2 and by Henry and Morrison. 3 



The recorded results do not indicate that there is any material 

 difference between swine and ruminants as regards their di- 

 gestive power for concentrates. As in the case of the horse, 

 there seems to be a tendency toward a lower percentage diges- 

 tibility of ether extract by swine, due most likely to the presence 



1 Landw. Vers. Stat., 84 (1914), 149. 



2 Ernahrung landw. Nutztiere, 6th Ed., p. 45. 

 1 Feeds and Feeding, isth Ed., pp. 647-652. 



