118 



Feeds and Feeding. 



for protein, fat and nitrogen-free extract, respectively. Several 

 American Stations have also endeavored to ascertain the money 

 value of concentrates according to the nutrients they contain, with 

 the results presented in the table below: 



Valuations of nutrients in American concentrated feeding stuffs 

 various Experiment Stations. 



The data in the above table were secured in the following 

 manner: The market values of all the concentrated feeding stuifs 

 in the state were tabulated, together with the pounds of digestible 

 protein, carbohydrates and ether extract they contained. Then 

 by a mathematical process the supposed relative value of each of 

 the nutrients was determined, with results presented in the table. 

 In Connecticut, for example, it was found that taking all the 

 common concentrated feeding stuffs offered in the market at cur- 

 rent values, each pound of digestible protein in these feeds cost 

 on the average 1.6 cents, one pound of digestible fat 2.4 cents, 

 and a pound of digestible carbohydrates .96 cents. Hills, Boyce 

 and Jones, of the Vermont Station, calculating the commercial 

 values of concentrates for their state, found by the process usually 

 employed that digestible fat had a value of .19 cents, or that it 

 was worth less than nothing, an absurdity of course. Surprised 

 at this, they investigated the subject in a broad manner and came 

 to the conclusion that the method employed to determine these 

 values is inaccurate and without merit. At present it is impos- 

 sible to state the value of one feeding stuff in terms of another 

 from calculations based upon the nutrients contained in each. 



