FORTY-SECOND ANNUAL CONVENTION 



251 



Table 5 — Approximate digestible protein content of various grains and 



by-products. 



Average 5 



per 



Average 10 per 



Average 15 per 



Average 20 per 



cent (2.5 to 



7.4 



cent (7.5 to 12.4 



cent (12.5 to 17.4 



cent (17.5 to 22.4 



per cent). 





per cent). 



per cent). 



per cent). 



Corn meal 





Wheat, ground 



Wheat bran 



Gluten feed 



Corn-and-cob 





Oats, ground 



Wheat middlings 



Malt sprouts 



meal 





Barley, ground 



\Dried distillers' 



Dried brewers' 



Hominy feed 





Rye, ground 



grains (rye) 



grains 



Dried beet pulp 



Buckwheat, 





Dried distillers' 







ground 





grains (corn) 







Sorghum grains. 





Coconut meal. 







ground 





Peanut meal 

 with hulls 

 Cowpeas 



Average 25 



per 



Average 30 per 



Average 35 per 



Average 40 per 



cent (22.5 to 



27.4 



cent (27.5 to 32.4 



cent (32.5 to 37.4 



cent (37.5 to 42.4 



per cent). 





per cent). 



per cent). 



per cent). 



Buckwheat 





Gluten meal. 



Cottonseed meal. 



Peanut meal 



middlings 





Linseed meal 



(both processes 

 Soy beans. 





(hulled nuts) 



The per cent of protein in a grain mixture may be found as 

 follows : Take any number of parts of any number of feeds in 

 the table and for each part put down the per cent of the col- 

 umn in which it is found. Add these numbers and divide the 

 sum by the number of parts. Examples : 



1 part wheat bran 15 



1 part cottonseed meal - 35 



1 part gluten feed 20 



3) 70 



23.3 per cent protein 



