THE DAIRY BARN 



147 



ings should be provided with means for closing if the wind 

 pressure causes too rapid movement of the air. 



IS 5. Cost of Barns. The price of milk, climate, cost of 

 mm >er, and many other factors influence the cost of dairy 

 ban s. Where milk is high in price and where a correspond- 

 ing < quality is demanded, a very different barn will be required 

 fron. the kind needed 

 who.i milk goes to the 

 crea tnery. If valuable 

 pur< -bred stock is kept, 

 a so ne what more expen- 

 sive barn may be justified 

 thai would be needed for 

 ordi lary cows, because a 

 goou barn may help one 

 to soil the stock. Some 

 very good dairy barns 

 have, been built where * ARC AT CNO OF BARN 



FIG. 43. Cross section of a barn show- 

 ing the King system of ventilation. 



The 



air enters near the ceiling on the sides and 

 is drawn out through large flues opening 

 near the floor. 



lumber is moderate in 



price at a cost of $50 



per cow. Unless milk 



sells at a very high price, 



one should certainly hesitate to spend more than $100 per 



cow for the barn, including milk room, and silo, and storage 



place for the other dairy feeds. 



On the corn-belt farm, where few cows are kept and where 

 there is an abundance of straw, the cows may run in an open 

 shed. If there is a milking shed in which the cows are milked 

 and fed grain, very clean milk may be obtained. No system 

 is better for the health of the animals than running loose 

 in a good shed, but where dairying is made the primary 

 business a regular dairy barn is ordinarily desired. 



