BARNS FOR WISCONSIN DAIRY FARMS 



VENTILATION NECESSARY TO ANIMAL HEALTH 



Barn ventilation is necessary to regulate temperature, to 

 remove the moisture and bad air and to provide fresh air. 

 When human beings live in poorly ventilated rooms their 

 efficiency is reduced and they are easily attacked by disease. 

 The effect on animals may be expected to be the same. 

 Poor ventilation in stables is easily detected by an accum- 



FIG. 4. LETTING FRESH AIR IN AND FOUL AIR OUT 



The arrows show how the air is brought into the barn through the inlets and the 

 foul air drawn out at the. outlets. 



mulation of moisture on the walls and ceiling during warm 

 weather, and by frost in cold weather. In Wisconsin, where 

 it is necessary to keep animals in the barn during the winter, 

 it is absolutely essential to have a ventilating system. 



The King system of ventilation, devised by the late F. H. 

 King, for years connected with this Station, has come to be 

 generally adopted for barn ventilation. It has been widely 

 used in all climates and has proven as satisfactory as can be 

 expected from a partially automatic system. No ventilating 

 system yet devised is entirely automatic so even the King 

 system will need some attention. In the upper part of the 



