1893.] PUBLIC DOCUMENT — No. 33. 75 



containing food constituents can be l)ou<j;lit in the form of dif- 

 ferent feed stutfs equally well adapted under existing cir- 

 cumstances. A change in the marhet cost of one and the 

 same commercial feed stuif affects the cost of the nitrogen- 

 containing food constituent in particular as its supply is 

 more limited than that of the non-nitrogenous food constit- 

 uents which our home-raised coarse fodder articles contain 

 as a rule in abundance, and which therefore need not to l)e 

 secured from outside resources for cash. 



The subsequent tabular statement assumes a constant cost 

 of digestible non-nitrogenous food constituents, — sugar, 

 starch, fat, etc., — and shows thereby the variations in the 

 cost of digestible nitrogen-containing food constituents, in 

 case of some prominent concentrated commercial feed stulfs 

 in our local market. 



The majority of analyses stated are made of fodder articles 

 which have been used either during the past year in connec- 

 tion with some of our feeding experiments, or have been 

 raised upon the grounds of the station. Some articles sent 

 on by outside parties are added, on account of the special 

 interest they may present to others. 



