21 



Neither of these brands, however, are equal in feeding vahie to the meal 

 derived from the nut alone, which will contain from 40 to 50 per cent protein. 



Gluten Meal and Feed. — But one sample of gluten meal was col- 

 lected and it fully met its guarantee. Several brands of gluten feed did not 

 maintain their guarantees, which should be lowered to correspond more 

 closely with the actual composition of the product. 



Brewers' Grains. — Dried brewers' grains are occasionally found on the 

 market in spite of the more limited output compared with past years and the 

 fact that manufacturers of mixed feeds absorb the greater part of those 

 manufactured. The samples collected showed a tendency to run somewhat 

 lower in protein and higher in fiber than those collected in previous years. 



Yeast and Vinegar Grains are by-products in the manufacture of 

 yeast or malt vinegar. They are similar to brewers' grains in appearance 

 and composition, although their feeding value is somewhat less. 



Wheat Products. — Wheat middlings fall into three groups, — red 

 dog, flour middlings and standard middlings, — depending upon the amount 

 of flour which they contain. The Bureau of Chemistry of the United States 

 Department of Agriculture has recently made seizures of finely ground 

 wheat bran which has been sold as shorts or middlings. It is not believed 

 that any of the middlings collected in Massachusetts during the past season 

 were of this character. 



Wheat mixed feed is theoretically a mixture of the mill run bran and 

 middlings obtained in the manufacture of wheat flour. As a matter of fact 

 wheat mixed feed may be either mill run or a blended mixture of bran and 

 middlings in varying proportions. The brands showing the largest amount 

 of middlings are to be preferred. 



Wheat Bran. — The samples of wheat bran collected were of the usual 

 quality. While they varied to some extent in chemical composition, the 

 chief visible dilTerence, aside from color and degree of fineness, was in the 

 amount of screenings which they contained. Bran containing no screenings 

 or only slight traces is to be preferred to that containing larger amounts. 



Wheat and Rye Mixtures. — The scarcity of wheat by-products 

 under war conditions brought into the market a number of brands of feeds 

 consisting of mixtures of wheat bran or middlings and rye feed or rye mid- 

 dlings. They are practically equal in feeding value to the products for which 

 they were intended as substitutes. 



Dairy Feeds (more than 15 per cent protein). — These feeds were in- 

 tended and in most instances can be used satisfactorily as a complete grain 

 ration for dairy animals. The chief objection to their use is their high cost. 



