THE COW PEA. 51 



relative value or ratio of these two. This subject is exten- 

 sively treated in "The Digestibility of American Feeding 

 Stuffs," published in Experiment Stations Bulletin No. 77 

 of the U. S. Agricultural Department: " Range of allowable 

 ratio probably greater than you give it; tendency of later 

 experiments in that direction." Hall. 



The economical and profitable growth and support of 

 animals require their food to contain one part of protein to 

 from five to seven parts of carbo-hydrates. Within this 

 range, the proper ratio must be determined by the ani- 

 mal fed and the object in feeding. The cow pea is dis- 

 tinctly a protein feed, as may be seen from the following 

 table of Prof. W. A. Henry, in his book " Feeds and 

 Feeding": 



FOOD CONSTITUENTS OF COW PEAS AND 

 . OTHER FEEDING STUFFS. 



ASH. CARBO- ETHER NUTRITIVE. 



PER CENT. PROTEIN. HYDRATES. EXTRACTS. RATIO. 



