April, 19] 2] FEEDING-STUFFS Q 



or other roughage which can be grown on any New Hamp- 

 shire farm. While we have singled out one particular 

 feed here in this discussion a number of others would 

 have served our purpose equally as well. 



A chemical analysis of a feed shows the amount of 

 crude protein, crude fat and crude fibre, but a chemical 

 analysis does not differentiate between the sources from 

 which these constituents come. All of the feeding-stuffs 

 carry these in greater or less ciuantities. The chemical 

 analysis tells only in what quantities. 



The amount of crude fibre indicates to the careful buyer 

 something of the nature of the feeding-stuff. Ground oats 

 carry on the average about nine per cent, crude fibre. 

 Ground corn carries about two per cent. It is at once 

 evident from these data that a mixture of equal parts of 

 corn and oats should not carry more than six per cent, 

 crude fibre and under no conditions more than nine per 

 cent, otherwise the feed would become suspicious. Ground 

 corn and cob carries about six per cent, fibre. Ground 

 oats mixed with corn and cobs could not carry over nine 

 per cent, fibre. 



The Pennsylvania law prohibits the use of rice hulls, 

 peanut hulls, weed seeds, and also ground corn cobs ex-- 

 cept in exelusivel.y corn feed. Oat hulls, flax plant refuse, 

 elevator chaff, cottonseed hulls, ground corn stalks, 

 ground corn cobs, in exclusively corn feeds may be used 

 providing that the crude fibre in such feeds does not ex- 

 ceed nine per cent. 



Gluten meal is a high-grade product and belongs to the 

 same class as cottonseed meal as a source of protein. 

 Brewers' grains carry a high amount of crude fibre but 

 these also carry a high percentage of protein and con- 

 stitute a high-grade feed. From this it is evident that 

 a feed should not be condemned because of a high amount 

 of crude fibre unless the source of the fibre is known to 

 be present as an adulterant. The crude fibre in brewers' 



