2 iV. H. EXPERIMENT STATION [Bulletin 230 



DEFINITIONS OF FEEDS 



The Association of Feed Control Officials of the United 

 States has adopted definitions and standards for the various ma- 

 terials offered for sale as commercial feeds. These definitions 

 and standards were published in full in the 1924 feeding-stuffs 

 bulletin, copies of which are still available. Since the publication 

 of the 1924 bulletin the Association has made the following addi- 

 tions and changes. 



ANIMAL PRODUCTS 



Cracklings are the residue after partially extracting the fats 

 and oils from the animal tissues. If they bear a name descriptive 

 of their kind, composition or origin, they must correspond thereto. 



Digcstk'c Tankage is the residue from animal tissues, ex- 

 clusive of hoof and horn, specially prepared for feeding pur- 

 poses by tanking under live steam, drying under high heat, and 

 suitable grinding, and contains less than 10 per cent phosphoric 

 acid (P2O5) 



CORN PRODUCTS 



Corn Oil Cake consists of the corn germ from which part 

 of the oil has been pressed and is the product obtained in the wet 

 milling i)rocess of manufacture of corn starch, corn syrup and 

 other corn products. 



Corn Oil Meal is ground corn oil cake. 



Corn Germ Cake consists of corn germ with other parts of 

 the corn kernel from which part of the oil has been pressed, 

 and is the product obtained in the dry milling process of manu- 

 facture of corn meal, corn grits, hominy feed, and other corn 

 products. 



COTTONSEED PRODUCTS. 



Cottonseed Meal is a product of the cottonseed only, com- 

 posed principally of the kernel with such portion of the hull as 



