225 



The mixture contains x 100=15. OS'/^^ protein. 



1410 



The percentage of fat or fiber may be calculated in a like manner 

 by substituting the fat or fiber figures for those of the protein. 



CONFORMITY TO THE GUARANTEES 



The chemical analyses were made by the methods of the Associa- 

 tion of Official Agricultural Chemists. Of the 636 samples analyzed, 

 9.3 per cent contained less than the guaranteed amount of protein; 

 5.5 per cent contained less than the guaranteed amount of fat, and 7.2 

 per cent contained crude fiber in excess of the guarantee. A compari- 

 son of these figures with those of previous years is shown in Table I. 



Resolution 16, p. 14 of the OflJicial Publication of the Association 

 of American Feed Control Officials, reads in part "that urea is to be 

 used only in such limited quantities as to insure the total amount 

 present shall not exceed ?>'/< of the (grain) ration." Seven brands 

 contained urea as one of the ingredients. None exceeded the 3 per 

 cent urea permitted under the resolution. 



All the 48 states have feedingstuff laws. All publish an inspec- 

 tion report. About one-half the states indicate by different type 

 those brands which fail by an arbitrary tolerance to conform to the 

 guarantee. There is no common agreement what this tolerance should 

 be. In this bulletin the analytical figures one-half per cent or more 

 below guarantee in protein, one-fourth per cent or more below guar- 

 antee in fat, and one per cent or more above guarantee in crude fiber 

 are printed in bold-face type. The object of the bold-face type is to 

 make it easier for the purchaser to see which brands do not come 

 within this tolerance. 



