DRIED APPLE POMACE FOR FARM STOCK. 



137 



deficient in lime, in which constituent the beet pulp is relatively rich, 

 but contains a fair amount of phosphoric acid and potash. 



In calorific value the dried apple pomace compared very favorably 

 with corn meal, sugar and corn starch. Probably the calorific value of 

 the pomace is enhanced by the presence of nearly 5 per cent of waxy 

 material. 



Digestibility of Dried Apple Pomace. 



In addition to composition, the rate of digestibility is found to throw 

 considerable light upon the nutritive value of a foodstuff, hence eight 

 trials with four different sheep were made, of which seven trials proved 

 to be satisfactory. Four tests were made with the dry, coarse, or un- 

 ground, pomace; in two cases the pomace was fed with hay, and in two 

 cases with hay and gluten feed, as the basal ration. Three tests were 

 made \vith the finely ground pomace in which it was fed with hay and 

 gluten feed. The dry, coarse pomace was the product just as it came 

 from the presses; the fine-ground pomace had been passed through an 

 ordinarj^ grist mill and was almost in the form of a powder. 



The results showed that the sheep were able to digest on an average 

 68.5 per cent of the total dry matter in the apple pomace, the fiber and 

 nitrogen-free extract bemg quite well utilized, the fat to a much less 

 degree,! while the protein was apparently not digested at all. We say 

 apparently because this peculiarity of indigestibility of protein is often met 

 with in feeds of quite low protein content, and is due to the excretion of 

 nitrogenous material in the form of digestive juices and intestinal wastes. 

 The probability is that the pomace protein, although small in amount, 

 is fairly well utilized. 



The trials were not sufficient in number to indicate positively any dif- 

 ference in digestibility between the coarse and the finely ground pomace, 

 and it is doubtful from a nutritive standpoint whether any advantage 

 would be gained in grinding it fine. Compared with other feeds of a simi- 

 lar tj'pe, the pomace is shown to be not quite as digestible as dried beet 

 pulp, and much less so than corn meal. 



' The fat or other extract is largely in the form of waxy matter and has little nutritive value. 



