Spray For Poultry Housing

Research showed that in conventionally built fan ventilated poultry houses, identical except for having or not having insulation in the roofs, has shown the following mortality rates for market broilers when outside average maximum temperature was only 91° F (32.8°C):

Under normal conditions, fully feathered birds actually produce excess heat, which their bodies must shed, and which results in warming their surroundings. For this reason, little supplementary heat is usually needed in poultry houses even in cold climates, the problem is keeping birds from over-heating, not in seeing that they do not get too cold. It is very important to us in the broiler business to help keep the heat of the sun out of the house during the hot season.

Birds feeling too hot will pant, drawing more air inside their bodies to absorb heat. They will also lift their wings to expose more body surface area to the air and will alter their blood circulation to pump more blood to surface air-cooling areas such as wattles and feet. All these responses lower the feed efficiency and performance of both the broilers and laying hens. If birds are unable to get rid of the excess heat, eventually they will die

Roof Metal sheets on houses may easily be heated to 150°F or 66°C or higher during the hot season. Research has shown that a sun-heated and uninsulated weathered galvanized roof will radiate heat into a poultry house at a rate of 30 to 35 BTU per hour per square foot. This is the reason why roof insulation is needed.

The air temperature in such a house will rise by the air absorbing the heat from the already radiantly heated birds. In the radiant heat gain situation the ventilation effects operate only after the birds have already absorbed this heat.