Si- 

 203 

 .N38 

 1929 



Bulletin 



OF THE 



National Research 

 Council 



NUMBER 67 



THE MINIMUM PROTEIN REQUIREMENTS 

 OF CATTLE 



Report of Committee on 

 Animal Nutrition 



H. H. Mitchell 



N8I3 



Published by The National Reseaech Council 



OF 



The National Academy of Sciences 

 Washington, D. C. 



1929 



