MANUAL OF OA'rTLE-FEEDING. 



249 



Carbon , . . 

 Hydrogen. 

 Oxygen. . , 



Pure 

 cellulose. 



44.4 

 6.2 



In tliese experiments tlie true cellulose in fodder and 

 excrements was determined by a method proposed by F. 

 Sclmlze, and from the data tlms obtained the absolute 

 amounts of cellulose digested in each experiment were cal- 

 culated. The results were practically identical, as the fol- 

 lowing table shows, with the amount of crude fibre 

 digested, thus furnishing another proof that the latter con- 

 sisted of cellulose. 



No. of Experiment. 



1. 

 2. 

 4. 

 5. 

 6. 

 7. 

 8. 



• • o s 



Grade fibre 



digeufced. 



Lbs. 



Cellulose 

 Lbfi. 



2.01 



2 12 



1.91 



2.16 



3.92 



3.87 



4.63 



4.47 



4 81 



4 55 



4 37 



4.02 



4 38 



4 13 



Pifferenoe. 

 Libs. 



+ 0.11 

 +0.25 

 -0.05 

 -0.16 

 -0.26 

 -0.35 

 -0.25 



By no means the whole of the cellulose of coarse fodder 

 is digested, but its percentage digestibility is consider- 

 ably greater than that of the '^ crude fibre." 



Nitrogen-free Extract. — While a part of the crude 

 fibre is always digested, especially by ruminants, a part of 

 the so-called nitrogen-free extract, on the other hand, is 



