Marble Spleen Disease In Chickens

Serologically indistinguishable viruses cause marble spleen disease of pheasants and avian adenovirus splenomegaly in broiler chickens.

Marble spleen disease in chickens.

The type ii adenoviruses include marble spleen disease virus of pheasants hemorrhagic enteritis virus of turkeys and splenomegaly virus of chickens which are morphologically and serologically indistinguishable. The lesions are pathognomonic. Marble spleen disease is caused by a type ii avian adenovirus. Marble spleen disease msd is a contagious disease of captive reared ring necked pheasants phasianus colchicus characterized by variable mortality and high morbidity.

A viral disease of turkeys similar to pheasant marble spleen disease caused by type ii adenovirus distinct from classical fowl adenovirus and occurring in most turkey producing areas. Canada and europe during the last 30 years. The etiologic agent is a type ii avian adenovirus closely related to hemorrhagic enteritis virus of turkeys and splenomegaly virus of chickens. The polypeptides of serologically related viruses of hemorrhagic enteritis he in turkeys marble spleen disease msd in pheasants and splenomegaly in chickens smc were separated by sodium.

Species specific differences in clinical response are thought to be related to differences in the target organs for anaphylaxis and variation in. However they are. Both diseases are caused by similar viruses. There is prominent macrophage phagocytic cell hyperplasia and intranuclear inclusion bodies in the spleen distended bloody intestines and pseudomembranous fibrinonecrotic.