Infectious bronchitis in 4 weeks old broiler
Respiratory symptoms in 10 weeks old pullet. Gasping.
Characteristic shell changes during an outbreak of IB.
An hen with a peculiar stance (penguin-like) and a pendulous abdomen.
Cystic dilatations with a watery content
Cystic oviduct with water-like fluid accumulation in commercial layer
Cystic oviduct in commercial layer
IB nephritis broiler chicken (4 weeks old - Var ll)
IB nephritis broiler chicken (4 weeks old).
IB nephritis broiler chicken (4 weeks old - Var ll strain)
IB nephritis broiler chicken (4 weeks old)
Trachea of 4 weeks old broiler: Caseous cast. Tracheitis.
Infectious bronchitis in young (2.5 weeks old) commercial egg layer pullets.
Infectious bronchitis in young (3 weeks old) commercial egg layer chicks.
Inoculation at 9-11 days old of chicken embryos via allantoic sac.
"Curling" of embryos with a wry neck and feet deformed and compressed over the head.
Retardation of growth.
Inoculation of a chick embryo with Infectious Bronchitis Virus (IBV) into the allantoic sac results in a classic pathological presentation predominantly characterized by dwarfing and curling. Subcutaneous edema and congestion.