14 



The Bulletin. 



ADULTERANTS.* 



The following materials, when mixed with feeds without sufficient 

 labeling to indicate their presence are considered adulterants : corn 

 bran, rice hulls, ground corncobs, peanut hulls, peanut middlings, oat 

 hulls, mill sweepings, screenings, cotton-seed hulls, and similar products. 



ANALYSES OF FEED ADULTERANTS 



WHEAT BRAN. 



(Analyses on pages 24-29.) 



Fifty-seven samples of wheat bran were analyzed, of which 49, or 86 

 per cent, were official. The following tabulation will give at a glance 

 the results of the analyses: 



Guarantee 



Found 



Deficientt 



Range of deficiency. 



Range of excess. 



Average deficiency- 

 Average excess 



Percentage Composition 



Protein 



Fat 



13 .75 to 17 .13 



12 .50 to 16 .38 



21 or 43 .00 



0.07 to 3.76 



0.06 to 3.63 



3 .00 to 5 .35 

 2.66 to 6.12 

 11 or 22 

 0.06 to 1.34 

 0.01 to 1.95 



Fiber 



4.71 to 11.00 

 4 .86 to 10 .58 

 39 or 80 

 .05 to 3 .42 

 0.50 to 1.55 



It will thus be seen that the article sold as wheat bran varies greatly 

 in feeding value — as much as 30 per cent in protein and 100 per cent in 

 fat. This variation is not due, except in rare cases, to adulteration. 

 There is, however, no adequate variation in price to correspond with 

 greater or less feeding value. The price of wheat bran throughout the 

 State the past year was $1.60, $1.65, $1.70, and $1.75 per 100 lbs. The 

 same dealer, in the same town, on the same day, quoted bran : 



•Reprinted from Bulletin of November, 1912. 



tDeficient here, and throughout this bulletin, means below guarantee; and note that to be below 

 guarantee in the case of fiber is to be better than guarantee. 



