60 AGRICULTURAL EXPERIMENT STATION. [Jan. 



Second. The feeding effect of one and the same diet 

 changes with the advancing growth of the animal on trial. 



Third. The power of assimilating food and of convert- 

 ing it into live weight decreases with the progress in age. 



Fourth. It is not good economy to raise pigs for the 

 meat market to an exceptionally high weight. To go beyond 

 from 175 to 180 pounds is only advisable when exceptionally 

 high market prices for dressed pork can be secured. 



In addition to what has been said on this particular point 

 in previous communications, I insert here, in a tabular form, 

 the estimated cost of feed used for the production of one 

 pound of live weight during the succeeding stages of growth 

 of the entire lot of pigs which served in the eighth experi- 

 ment. 



Cost of Feed for the Production of One Pound of Live Weight during the 

 Different Feeding Periods. 



