N. H. EXPERIMENT STATION. 



[Bulletin 195 



What Does the Chemical Analysis Mean? 



In a feed analysis the following determinations are usually 

 made: protein, fat, carbohydrates/ ash, moisture and crude 

 fiber. 



Protein is determined by finding the percentage of total ni- 

 trogen and multiplying this by the factor 6.25, since it has been 

 found that the average proteins contain 16 per cent nitrogen. 

 Wliile this includes small amounts of certain other compounds 

 which contain nitrogen, for all practical purposes it is suffi- 

 ciently accurate. Protein, then, is made up of the compounds 

 iu the feed which contain nitrogen. 



