August, 1935] INSPECTION OF FEEDING STUFFS 5 



NUMBER OF SAMPLES FAILING TO COMPLY 



WITH THE LAW 



One hundred fifty-two of the 354 brands analyzed failed 

 to comply with the law in every respect, violating it on 187 

 counts. Nearly all of these violations, however, are neglig- 

 ible if measured in terms of the cost to the purchaser. 



Only five brands were found deficient more than one 

 per cent in the most valuable constituent, protein. The 

 greatest protein deficiency was 3.22 per cent. Five brands 

 were deficient more than one-half per cent but less than one 

 per cent. Nine brands were deficient less than one-half per 

 cent. The 1 9 brands found deficient in protein is equivalent 

 to 5.4 per cent of the brands analyzed. 



Forty-five brands or 12.7 per cent were deficient in fatj 

 15 of these were deficient less than one-fourth per cent. 

 The greatest deficiency in fat was 1.29 per cent. 



Thirty-five brands contained an excessive amount of crude 

 fibre. Seventy brands were deficient in carbohydrates. In 

 the analysis of a feeding stuff the percentage of carbohydrates 

 is usually determined indirectly. It is found by subtracting 

 the sum of the percentages of protein, fat, moisture and ash 

 from 100. It is obvious that an excess of protein and fat 

 over the manufacturer's guarantee decreases the percentage 

 of carbohydrates found. Many of this year's carbohydrates 

 deficiencies are due to the protein or fat or both exceeding 

 the guarantee. Nineteen brands were offered for sale with- 

 out a carbohydrates guarantee. Some states do not require 

 the carbohydrates guarantee. It is probable many of the 19 

 brands found oft'ered for sale without the carbohydrates 

 guarantee were not shipped into the state by the manufacturer 

 but represent only small lots shipped in by jobbers in neigh- 

 boring states. 



In the tabulation of the analytical data deficiencies of one- 

 half per cent or more of protein and of one-fourth per cent 

 or more of fat are shown in bold-faced type. 



In Table II is shown a summary of deficiency figures over 

 a ten year period. 



