SANITARY AND UNSANITARY BARNS 37 



hide and from barn air into milking pails 

 causes serious contamination of milk with dirt 

 and bacteria. 



Well constructed and sanitary barns are de- 

 sirable because they reduce stable dust. Cement 

 floors, iron stanchions, smooth and tight ceil- 

 ings and walls, abundant windows, ventilating 

 and drainage system, feed carriers, manure car- 

 riers, beds of cork brick, all these things are aids 

 to sanitation, but are more expensive than most 

 farmers can afford. The beautiful barns pro- 

 ducing certified milk are some of them cow 

 palaces, but after all the only thing such barns 

 can accomplish is to reduce the quantity of 

 stable dust. 



Stable dust can be reduced in any barn by 

 any farmer by extra care. Even the commonest 

 barn with a dirt floor and rough walls can be 

 kept free from excessive dust by the farmer who 

 knows how. 



But stable dust is of very small importance 

 compared with other sources of contamination 

 of milk. The barn itself is of small importance, 

 and stable dust is of small importance compared 

 with the damage to milk by direct droppings from 

 the cow's hide into the milking pail, or damages 



