262 DAIRY FARMING 



cement, two parts clean, coarse sand and four parts 

 gravel or crushed stone. Finish with one part cement and 

 two parts sand. 



All parts of the floor should slope toward the drain in 

 the center. Round out the corners and edges of the floor 

 with concrete to make them more easily cleanable. 



The ceiling should be about twelve feet high and built 

 of the best ceiling lumber. Keep the ceiling well painted. 



Enough windows must be provided to afford ample 

 light and to admit sunshine to all parts of the building. 



Provide ventilation in the milk and wash rooms by 

 running tight ventilating shafts from the ceiling through 

 the top of the roof. 



Sewerage. Effective sewerage must be provided at 

 the time the floor is laid. A bell trap should be placed 

 in the center of each room and carefully connected with 

 the sewer. Conduct the sewage far enough away to 

 keep its odors a safe distance from the dairy house. 



Screening. Where proper sanitation is expected it is 

 absolutely necessary to guard against flies, and this can 

 easily be done by screening all doors and windows. Flies 

 are a prolific source of milk contamination and must 

 therefore be rigidly excluded from the dairy. 



