148 INSPECTION OF FKEDIKG-STUFFS. 



for calves, the old process is by all means the better, because 

 of its higher oil content. 



Gluten meal and gluten feed are both residues of corn 

 left in the manufacture of corn starch and glucose. The 

 important difference between them is the amount of hulls 

 or bran. In gluten meal, the hulls are absent, while in 

 gluten feed they are present, either in a coarse ov fine 

 ground condition. This material causes a marked differ- 

 ence in the bulk of the two feeding-stuffs and in the per- 

 centage of protein. The manufacturers of these products 

 have persistently overrated them in their statements of pro- 

 tein. The meals Avill average about 33 per cent, and the 

 feeds about 25 per cent., respectively, instead of 38 and 27, 

 as often claimed in the past. Warner's Gluten Feed has 

 persistently fallen below 25 per cent, since our inspection 

 began. 



Distillers ' grains are a waste product in the manufacture 

 of whisky and alcohol and are usually from corn. As much 

 of the starch as possible has been converted into alcohol, 

 leaving the hulls, germs and gluten of the kernels, together 

 with more or less starch. Their composition is very similar 

 to the gluten products in protein ; but is much higher in 

 fat. and varies with the thoroughness with Avhich the alco- 

 holic fermentation has been carried out. About 33 per 

 cent, of protein and 11 per cent, of fat should be guaran- 

 teed for these materials. One brand has guaranteed 36 per 

 cent., but has never equalled it in our experience. 



Hominy feeds are from corn and differ from corn meal 

 in having more protein, fat and fiber than the latter. They 

 are uniformly good. The corn and oat feeds are evidently 

 made up from inferior oats and by-products of the cereal 

 mills, since they practically always contain more fiber than 

 the whole grains ever show. Oat feeds are in most cases 

 nothing but oat hulls, more or less finely ground, as is 

 shown by their percentages of fiber. The samples collected 

 were equal to the guarantees; but fine-ground oat fodder 

 would be equally valuable. 



