Show ventilation FOR BARN ESSENTIAL it will promote health and comfort of dairy animals ventilation la Is necessary for the health benith and comfort of animals it will preserve tile the building and contents from mold and rot due to excessive moisture and will aid in the prevention and control of disease there are barns today where the construction Is such that there la Is ample movement of air through lea leaky ky wa walls its hay chutes silo c chutes and stairways such buildings in extreme weather however become too cool for dairy cattle to glye dye economical production for the best results we must dmit admit a fresh air remove stale air and con arol temperature and humidity A system for ventilation consists of openings or inlets to admit air open ings or out takes to remove air and some me means anns of creating a movement of air the factors having the greatest effect on neutral ventilation are tile the heat bent which Is supplied by the animals in a building since the heat beat to create an nil movement through a barn must be furnished by the animals in the barn it Is evident that the kind and size of animals and the construction of the barn must be carefully considered A cow or horse weighing 1000 to 1200 pounds will heat beat approximately cubic feet space in a well built barn only such space as an animal can heat should be provided for dairy barns the ceiling height should not be over six feet in the clear the king system of tatting taking foul air out of the barn near the door and admitting fresh air near the ceiling has proved very satisfactory and to Is the most w widely idely used definite rules for the king system of ventilation are L 1 the stable should bo be of tight warm construction 2 allow COO cubic feet of space for each 1000 pound animal or equivalent 3 intakes should be many and small 4 intakes should be located every 8 to 12 feet around the building 6 5 intakes enter at ceiling cel ling open at out outside de about 4 feet lower 6 0 intakes should be insulated 7 ont inkes takes few and large 8 out takes draw from 15 indies above floor 9 out takes equipped with heat door near ceiling cel ling 10 out takes insulated straight high and fitted at the top with a roof ventilator 11 allow one square foot of out take flue for four 1000 to 1200 pound cows or horses or equivalent in other live stock 12 total capacity of intakes should be ba equal to or slightly greater than out takes a it 13 al air r can be drawn to the out take a maximum of about 30 feet 14 one roof ventilator for each 35 feet in length of a barn 30 feet to 40 feet wide |