Watch and Learn
When we are experiencing fast onset hot weather we need to be more reactive than reactive in poultry housing. Birds usually show two stages of panting from slow open mouthed breathing to a heavy, labored pant. Keying on this is very important as energy expended on keeping cool by the birds is sacrificing production. output.
To counteract hot weather, provide the optimal environment for evaporative cooling and feed birds in cooler portions of the day. The heat of metabolism from feeding may exacerbate an already bad situation. You may want to map temps in the hottest portion of the house to pre-cool these areas before heat builds up in the house.