A healthy chicken typically breathes through its closed beak. If a chicken is breathing with its beak open, it may be sick or experiencing stress, such as from heat or anxiety. Respiratory illnesses ...

Officials are monitoring infectious laryngotracheitis in poultry that hasn’t increased in number of cases but appears to be expanding geographically in Pennsylvania.

Two vaccines aim to help poultry producers combat highly contagious respiratory disease affecting turkeys, broilers and layer flocks.