THE POLK SYSTEM 31 



at a level in the bin. This does not leave any part exposed to the air 

 long enough to render it unsuitable for feed. The practice of dig- 

 ging into ensilage and allowing it to remain exposed to the air for 

 a day is bad practice. It deteriorates more rapidly from much ex- 

 posure when the weather is warm. From one and one-half to two 

 inches should be fed each day. Silage should not be fed in 

 the room where the milking is done, nor should it be fed 

 just before milking time. No more should be given than the 

 cattle will eat up clean, because what is left around carelessly will 

 fill the air with acid odor that is readily taken up by milk. The 

 complaint, that milk will smell if silage is fed, is due entirely to 

 careless and unsanitary handling, and never to an intrinsic fault of 

 ensilage. 



''They are not built of piece*, and they 

 cannot go to piece*. ' ' 



