23 



age. Observations of trials with corn silage through a series of 

 years at this station point to the fact that it is often necessary, 

 where silage is of superior quality and exceptionally palatable, to 

 limit the amounts of this roughage fed to fattening cattle during 

 the latter part of the feeding period in order to induce the con- 

 sumption of large enough quantities of grain to insure satisfactory 

 results. 



SUMMARY. The only satisfactory method of judging the econ- 

 omy of rations is to consider together all the controlling factors 

 entering into the feeding operation. No single factor is a true 

 measure of the economy of a ration. The great number of factors 

 involved in cattle feeding makes it impossible, in a limited space, 

 to clearly discuss them in their numerous and complex combina- 

 tions. Therefore, the discussion of the trials- as a complete trans- 

 action is presented, with such variable factors as weight and cost 

 of cattle, cost of gains, selling price of cattle and profit or loss per 

 steer as they occurred during the trials. 



Table V shows a complete summary of the results. 



