July, 1936] INSPECTION OF FEEDING STtJFFS ' 



NUMBER OF SAMPLES FAILING TO COMPLY 



WriH THE LAW 



One hundred fifty nine of the 384 brands analyzed 

 failed to comply with the law in every respect, vio- 

 lating it on 202 counts. Nearly all of these viola- 

 tions, however, are negligible if measured in terms 

 of the cost to the purchaser. 



Eleven brands were found deficient more than one 

 per cent in the most valuable constituent, protein. 

 These deficiencies were 3.12, 2.94, 2.82, 2.22, 2.15, 

 1.87, 1.69, 1.38, 1.14, 1.10 and 1.08 per cent. Nine 

 brands were deficient more than one-half per cent but 

 less than one per cent. Eleven brands were deficient 

 less .than one-half per cent. The 31 brands found de- 

 ficient in protein is equivalent to 8.1 per cent of 

 the brands analyzed. 



Fifty-three brands or 13.8 per cent were deficient 

 in fat; 21 of these were deficient less than one- 

 fourth per cent. The greatest deficiency in fat was 

 1.34 per cent . 



Forty-seven brands contained an excessive amount 

 of crude fibre. Sixty-nine 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. Two 

 brands were offered for sale without a carbohydrates 

 guarantee . 



In the tabulation of the analytical data, de- 

 ficiencies of one-half per cent or more of protein 

 and of one-fourth per cent or more of fat are 

 underlined . 



In Table II is sho'ATi a summary of deficiency 

 figures over an eleven year period. 



