VARIOUS FACTORY BY-PRODUCTS 



185 



The most striking part of the data shown in the table is the 

 high protein, fat, and ash contents of the corn germ. This con- 

 tains 65 per cent of the total fat in the kernel, 16 per cent of the 

 protein, and about 60 per cent of the ash (70 per cent of the phos- 

 phoric-acid content). The hulls (skin) contain very nearly one-half 

 of the total fiber, and the starchy part about 90 per cent of the total 

 nitrogen-free extract of the kernel. 



The only by-products of corn or hominy mills used for feeding 

 farm animals are corn bran and hominy meal. Both of these are 

 obtained by similar manufacturing processes as those given under 

 wheat feeds. The corn bran does not 

 differ greatly from wheat bran in 

 chemical composition; it is lower in 

 ash and protein, and somewhat higher 

 in carbohydrates and fiber, however; 

 its digestibility is slighly higher than 

 that of wheat bran, except for the 

 protein it contains, which is con- 

 siderably lower, viz., 54 per cent, 

 against 77 per cent for wheat bran. 

 The two feeds may, in general, be con- 

 sidered of similar feeding value, in 

 so far as it is possible to compare the 

 feeding values of two feeds of as 

 different nutritive ratios (corn bran, 

 1 : 10.6 ; wheat bran, 1:4). 



Hominy meal, feed or chop, consists of the bran, germ, and soft 

 floury portion of the corn kernel which are separated in the manu- 

 facture of hominy or brewer's grits. 6 It forms a very valuable, pal- 

 atable, fattening feed, of a similar composition to Indian corn, the 

 main difference being that it is higher in fat and lower in nitrogen- 

 free extract than is Indian corn, and also somewhat higher in fiber, 

 as will be seen from the following average analyses: 



Chemical Composition and Digestibility of Hominy Meal, in Per Cent 



FIG. 36. Section of corn kernel. 

 ("Productive Farming," Davis.) 



8 A similar feed manufactured from Southern " grits " is sold in the 

 South as " Corn Hearts." 



