176 ILLINOIS STATE DAIRYMEN'S ASSOCIATION 



Every cow stable should have a system of ventilation to 

 keep the air fresh and pure and the cows comfortable 

 without exposing them to injurious drafts. If the odor in 

 the stable is disagreeable at any time, it indicates that the 

 ventilation is deficient. At least 500 cubic feet of air space 

 should be provided for each cow. Farmers who desire to 

 provide proper ventilation in cow stables can obtain infor- 

 mation on this point by applying to the Dairy Division of the 

 United States Department of Agriculture. — Farmers' Bulle- 

 tin, No. 602, U. S. Department of Agriculture. 



Building the Dairy Bam. 



The best barn is one that saves labor and keeps the 

 stock comfortable, well and clean. 



Wisconsin's reputation for good dairy cattle brings 

 many buyers for such stock from outside the state. These 

 buyers, in selecting healthy cattle, place much stress upon 

 the kind and condition of building in which the stock was 

 raised. A well planned barn adds more value than its cost 

 to the market price of the farm, and reflects added value to 

 the stock. The best barn is not always the most expensive 

 one. A good plan and the selection of materials on the 

 basis of local conditions save money. 



It may be that the old barn can be remodeled with 

 economy and satisfaction. Save as much of the old barn as 

 possible. Let increased efficiency and availability of ma- 

 terials be the basis of all changes. — Bulletin No. 369, Uni- 

 versity of Wisconsin Agricultural Experiment Station. 



The Purpose of a Ventilation System. 



A good ventilation system, if properly installed and 

 operated, will (1) supply without draft the abundance of 

 fresh air necessary to the health and comfort of cows; (2) 

 makes possible control of barn temperature; (3) preserve 

 the building and feed stuffs from mold and rot due to exces- 

 sive moisture and make spontaneous combustion less likely; 

 (4) provide a measure of disease prevention and control. — 

 Farmers' Bulletin No. 1393, U. S. Department of Agricul- 

 ture. 



