n8 



Analysis of Feeding Materials [189-191 



Analysis of the Crude Fibre 



189. The crude fibre is treated in exactly the same manner 

 as the crude fibre of hay, estimations being made of nitrogen 

 and ash. 



Analysis of the Dry Matter 



190. Estimate the ash and nitrogen exactly as in a sample 

 of hay. 



191. Calculation. — This is much the same as the calcu- 

 lation of grass analysis, only more complicated. First calcu- 

 late from the weight of different substances the following 

 percentages : 



Percentage of moisture . 

 „ pressed pulp 



,, crude fibre 



„ woody fibre 



„ nitrogen . 



„ ash 



„ nitrogen . 



„ ash 



„ albuminoid nitrogen 



„ ash 



„ glucose . 



,, cane sugar 



Multiply the percentages of nitrogen in crude fibre and 

 juice by 6*25 to obtain insoluble and soluble albuminoids. 



Reduce the percentages of crude and woody fibre to parts 

 per hundred of the original sample, thus : 



Percentage of crude fibre x percentage of pulp 



100 



= percentage of crude fibre in the sample. 



in the sample ; 

 in the pressed pulp ; 

 in the dry matter ; 

 in the crude fibre ; 



in the juice. 



