THE INSPECTION OF FEEDING- STUFFS 17 



From the table of common feeding stuffs it will be seen that 

 the foods which are richest in protein are those residues of 

 seeds or grains from which either oil or carboh\'drates have 

 been removed. F'or example, cottonseed meal is the meat of 

 the cotton seed from which the oil has been extracted, and 

 gluten feed is the remnant of the corn kernel after starch has 

 been removed. Such foods have little fiber and a moderate 

 proportion of soluble carbohydrates. They may or may not 

 be richer in oil than common fodders. 



The home-grown fodders, consisting of whole plants, are, 

 as a rule, high in fiber, and low in protein and fat with a 

 moderate proportion of soluble carbohydrates. The grains 

 contain much more carbohydrates, with a little more protein 

 and fat than the fodders. Corn meal and oat feed are infe- 

 rior to the whole grains in composition, because the best 

 grades of corn and oats are sold unground. 



In the by-products from wheat, viz., bran and middlings, 

 we have the portions of the grain which are richest in protein 

 and fat, but for human foods they are made unsuitable by 

 the larger proportion of fiber accompanying the other con- 

 stituents. 



Although winter bran usually sells for a higher price than 

 spring, it will be noted that its composition is a little inferior 

 in both protein and fat. This is borne out by numerous analy- 

 ses.* Digestion experiments show practically no difference f 

 in the rate of digestibility of the varieties, and consequently 

 there is no reason why one should purchase winter bran in 

 preference to spring bran. 



Wheat middlings vary considerably in composition and value. 

 In general, so far as recorded analyses can show, brown mid- 

 dlings have more fiber and less soluble carbohydrates than the 

 average, while flour middlings contain more of the latter and 

 less of the former. The protein content will average about 

 alike for the two grades. Mixed feed is made up from both 

 bran and middlings, and consequently has a composition vary- 

 ing between those of the other two. 



In purchasing feeding stuffs one should carefully consider 



* Pa. Expt. Sta. Bull. 48. N. J. Expt. Sta. Bull. 160. 



t Digestibility of American Feeding Stuffs. — Jordan and Hall. 



