MAKITAL OF £3ATTLE-F3EEB]3ra. 



275 



Some of the examples contaiaed in the following para- 

 graphs will, perhaps, make the method of calcnlation 

 clearer, while they at the same time serve to elucidate 

 some of the practical questions that arise. 



These questions concern chiefly the influence of eoMc^a- 

 trated fodders on the digestibility of coarse fodder, Mxd to 

 them we shall devote most of our attention, since it is im- 

 possible, within the limits of this work, to noti^ the 

 numerous experiments on the digestibility of the various 

 concentrated fodders. For the results of the latter the 

 reader is referred to the Appendix. 



Effect of ALBUMrN-oiDs, — E. Schulze & Marcker,* in 

 Weende, have made expeiiments on the effect of a prepara- 

 tion of wheat-gluten containing ^S per cent, of albuminoids 

 on the digestibility of meadow-hay. They experimented 

 on sheep, and obtained the following results for tlie per- 

 centage digestibility of the hay, on the assumption that 

 the gluten was wholly digested : 



Hay alone 



Hay and 119.4 grms. gluten.. 

 Difference. , , . 



Protein. 



57 



53 



^4 



Cmcle 

 Fibre. 



57 

 58 



Fat and 

 f ree extract 



66 

 67 



+ 1 



Total 



matter. 



63 



+ 1 



A second experiment, with a larger amount of gluten, 

 gave, on the same assumption, the following results : 



Hay alone 



Hay and 202 3 grms. gluten 



Difference, 



Protein. 



55 



49 

 ^6 



Crude 

 Fibre. 



55 



J31 



-+-6 



Fat and ni 



tiagen free 



extract. 



67 



Organic 



matter. 



61 

 60 



* Jour, fur Landwirtliscliaft, 1871, p. 68. 



