98 



Feeds and Feeding. 



always regarded as "dry" forage. Of the nutrients in 100 

 pounds of stover, 3.8 pounds are protein, while the same weight 

 of oat straw contains 4 pounds. Were it not for the large amount 

 of water in corn stover, it would exceed straw in protein. Of 

 crude fiber, the least valuable constituent of fodders, the stover 

 contains 19. 7 pounds, or only about one-half as much as oat straw. 

 In nitrogen-free extract straw again leads, containing 42.4 pounds 

 against 31.5 in stover. The table shows that the concentrates 

 usually contain a higher proportion of protein than the coarse 

 fodders, red clover and other legumes excepted. Corn is low in 

 crude fiber, while oats are relatively high because of the husk 

 which surrounds the oat kernel. The cereals, especially corn, are 

 rich in nitrogen-free extract, which is principally starch. Corn 

 and oats each contain five pounds of ether extract, and linseed 

 meal eight pounds, practically all oil. 



130. Digestion coefficients. Elsewhere it is shown how the 

 animal physiologist through feeding trials and analytical work 

 ascertains what percentage of the several nutrients in a feeding 

 stuff is digested by farm animals. Table II of the Appendix sum- 

 marizes the results of digestion trials with the leading feeds. 

 Example Table B, here given, shows the average digestion coef- 

 ficients for the feeding stuffs given in Table A. 



Example Table B, showing the average coefficients of digestibility for 

 the feeding stuffs presented in Table A. 



