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Show VENTILATION OF DAIRY BARN Better Health of Animals Is Assured by Supply oi Fresh Air King System Described. More of us every year are building burns wilh ventilating flues or putting put-ting lines Irit.u stables already built. I'Vesh ulr means belter lii'ullli In herds. The system described by F. II. King, (he Wisconsin authority on ventilation, ventila-tion, never has been outclassed. It la I he na I urn I way. In Illustration, the movement of the air is shown by arrows. The pure air monies In above the animals and the foul air is taken out through the out-lake out-lake shafts which have their openings down near the Moor and extend up through the roof or to the cupola. Some builders run the shafts straight up through I he; roof, others run them up to the roof and then over to the eupolu, and souk- join the lower shafts :tt the ceiling and then use but one main shaft to the roof at each end as shown here. The galvanized metal shaft is preferred pre-ferred by most dairymen who have used this sort of ventilating system. ' ' a . . j .Air Pressure Is Shown at D. D. Fore-ing Fore-ing Air in at B. B., and Out by Sue--tion at Top of Shaft A. . A general rule seems to be well tried out that -thirty square inches of out-take out-take and intake area, are about right for each grown animal housed in the stable. This being true, there would be needed two shafts, each 10 by 15 for a herd of -ten cows. The intake openings should be of the same area. A damper in the ceiling at C can "be opened if the temperature of the stable grows too warm. There can be no regular circulation unless there are :s many and as large intakes as out- : takes. Also, the intakes should let the air In at the ceiling, or above the level of the lower openings in the outtakea or foul-air shafts. |