DAIRYING 



37 



B 



' ''' '''''' 



Plate 21. Barn Ventilation. The best method of ventilating an 

 ordinary stable. The intake flues are constructed in the side wall. 

 The ventilator flues, CE, will take up space occupied by two cows, but 

 they will be found more efficient than a single flue. They should have 

 their lower openings at or near the floor level and rise two or three 

 feet above the ridge of the roof, or any adjoining roof. These flues 

 may be constructed of very light galvanized iron and have caps placed 

 over them. From Bulletin 164, Wis. Agr. Expt. Sta. 



bodies of the animals which aids in making the ventilating system 

 work; it also helps to keep the cows warm in cold weather. On 

 the other hand, too many animals in a given space pollute the air 

 and make the stable unhealthy as well as hard to keep clean. All 

 these things should be taken into consideration when calculating 

 the space per cow in the stable. 



