112 EtEMBNTARY TREATISE ON STOCK FEEDS AND FEEDING 



added which are inferior. These inferior materials are called 

 adulterants. As a general rule adulterants are added to feeds 

 that command high prices and so are disposed of for more than 

 they would bring if sold unmixed. 



Composition of Febd Adulterants 



Name of adulterant 



Composition in per cent. 



Fat 



(ether 



extract) 



Nitrogen 

 free ex- 

 tract 



Fiber 



Ground corn cobs .... 



Corn bran 



Oat hulls 



Flax bran^ 



Wheat screenings 



Cotton seed hulls 



Rice hulls 



Peanut hulls ... 



Flax feed (screenings) 



Buckwheat hulls 



Weed seeds'* 



54.90 



62.20 

 52.10 



65.10 

 32,91 

 26.86 

 14.36 

 41.91 

 38.21 



53.90 



30.10 

 12.70 

 29.70 

 41.86 

 4.90 



45. 10 

 41.89 

 66.12 

 14.60 

 45.30 

 11.60 



10.70 

 9.00 

 7.30 



11.60 

 11.06 



8.97 

 10.76 



8. 18 

 10.01 

 10.00 



1.40 

 1.30 

 6.70 



2.90 



2.77 



18.29 



3.44 

 7.89 

 1.98 

 4.20 



These materials are generally ground very fine so that they 

 are not easily detected by a physical examination. Sweepings, 

 elevator dust, brushings, grain screenings and other wastes are 

 used to some extent in our feeds, but there is such variation in 

 the composition of these materials that the analyses are not given 

 in the table. Corn pith, corn stalks, straws, corn husks, etc., 

 are sometimes used. Weed seeds are objectionable because they 

 sometimes injure the palatability of the feed to which they are 

 added, and they are a source of disseminating objectionable 

 weeds when they are added to a feed unground. Unground 

 weed seeds often pass through the animal undigested. Some 

 states do not permit the use of adulterants as previously ex- 

 plained. 



Suggestion: Require the students to secure a copy of the 

 State Feed Stuff Law and if your state has no law have them 

 obtain the law from some other state. The students should read 

 it thoroughly and write a criticism of it. 



1 Bui. 141, Kentucky Bxp. Station. 

 ^ Bui. 131, Indiana Kxp. Station. 



