Reduction of bird heat stress. M. Czarick (University of Georgia)

Dear Dr. Czarick

Thank you very much for your presentation. I have 2 questions for you.
1- In a region with hot summer and cold winter, which methods of ventilation will be correct. As we need minimum ventilation in cold weather and tunnel ventilation in summer.
2- In a region with hot and humid summer, what kind of ventilation could help us?

Best Regards
Ali

I totally agree, Mike! Sometimes I see people treating the water with no water analysis.

Another mistake people make is to build low houses with three-tier cage installation. The height of the building helps a lot to boost natural ventilation. Another mistake is to make the width of the house to accommodate 4 rows of cages instead of two or at worst three rows. Roofing materials is also a factor. Asbestos would hold heat in the day and throws them into the house during the colder period of the day which is basically in the night. Zinc roofing sheets would pick up the radiant energy and through them into the house immediately in the daytime thereby wrecking the havoc immediately. Light or white colored long span will reflect some and throw in some. The best is to use straw thatch on top of the roof during the heat periods. Though straw materials attract pest. Rather best is to use silvery roof reflectors as roof covers.

I forgot to mention in my earlier post that chicken don't sweat. As such, they do not lose heat from their skin except the minimal heat radiation from combs and wattles.They thereby resort to panting to release heat from the body, during heat stress which leads excess removal of carbon dioxide from the system. Carbonic acid is used to release significant amount of carbon dioxide. Depletion of carbonic acid raises blood PH. Which is called reactive heat stress alkalosis or metabolic alkalosis. Calcium metabolism is impaired under alkaline PH and so on.