GOO 



ANNUAL REPORT OF THE 



Off. Doc. 



Not ouly is the protein barely one-fourtli as abundant as in the 

 kernel and the fat but one-tenth as much, but the fiber is fourteen 

 times as great in amount; moreover, the nitrogen-free extract of the 

 cob, instead of being composed, like that of the grain, chiefly of 

 starch,, is largely made up of less valuable pentosans. 



The proportion of cob to kernel in well developed dent corn varies 

 little from 14 pounds in 70 pounds of ears, or one part of cob to four 

 of shelled corn. 



Figuring on this proportion and upon the basis of the average com- 

 position of dent kernel and of cob given above, the mean composition 

 of corn-and-cob meal should be: 



Per cent. 



Moisture, 10 . 6 



Ash, 1.5 



Protein 8.7 



Fiber, 7.8 



Nitrogen-free extract, 67.3 



Fat, 4.1 



100.00 



Six samples of this material were submitted for analysis, taken 

 from the following sources: 



Percentage Composition of Corn-and-Cob Chops. 



