240 ANNUAL REPORT OF THE Off. Doc. 



(3). Report to your Secretary violations of the law of which you 

 are cognizant. 



(4). In buying, study the figures giving the guaranteed composition. 

 The proportion of protein may tell you much. The different feeding 

 stuffs should contain protein as follows: 



Cottonseed meal, 42 per cent, or over. 



Linseed meal, 32 per cent, or over. 



Gluten meal, 35 per cent, or over. 



Gluten feed, 25 per cent, or over. 



Malt sprouts, 25 per cent, or over. 



Brewers' grains, 23 per cent, or over. 



Corn bran, 12 per cent, or over. 



Hominy feed, '. 10.5 per cent, or over. 



Corn meal, 9.5 per cent, or over. 



Oats, 11 per cent, or over. 



Corn and oats chop (pure),. .. .10.5 per cent, or over. 



Wheat bran, 15 per cent, or over. 



Wheat middlings, 15 per cent, or over. 



Mixed feeds may show a great variation in composition according 

 as they are compounded, but when one pretends to be pure com and 

 oat chop and has a low protein content, less than 10 per cent, for in- 

 stance, look out for it. 



(5). Regard must be had for the material accompanying the protein. 

 Two feeds carrying the same proportion of protein may have greatly 

 different values, as for instance, a mixture of oat hulls, hominy and 

 a little cottonseed meal as compared with pure hominy feed. The 

 latter is worth much the more because much more digestible, 



(6). Refuse to believe in mixtures for which unusual properties are 

 claimed. There are no more efficient nutrients than those grown in 

 your farm crops. Beware of ''gold bricks." 



(7). Inquire of your Experiment Station in regard to the new com- 

 mercial feeds. 



(8). Compare feeds of the same class on the basis of the digestible 

 matter they contain. This necessitates some study on your part. 



Do not compare protein feeds with carbohydrate feeds on this 

 basis. We do not know the relative money value of digestible pro- 

 tein and digestible starch. It simply remains for the farmer to get 

 protein and starch from the cheapest possible sources. 



DISCUSSION. 



Q. I would like to ask if Mr. Jordan finds adulteration in hominy 

 meal. 



A. Yes; there is a ground material advertised, an analysis of which 

 indicates that it comes from corn cobs. 



