Marble Spleen Disease In Chickens

Marble spleen disease msd is a contagious disease of captive reared ring necked pheasants phasianus colchicus characterized by variable mortality and high morbidity.

Marble spleen disease in chickens. The lesions are pathognomonic. There is prominent macrophage phagocytic cell hyperplasia and intranuclear inclusion bodies in the spleen distended bloody intestines and pseudomembranous fibrinonecrotic. Marble spleen disease is caused by a type ii avian adenovirus. 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.

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. However they are. Species specific differences in clinical response are thought to be related to differences in the target organs for anaphylaxis and variation in. Marble spleen disease is an acute respiratory disease of pheasants characterized by depression enlarged mottled spleens pulmonary congestion and death.

The etiologic agent is a type ii avian adenovirus closely related to hemorrhagic enteritis virus of turkeys and splenomegaly virus of 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. Both diseases are caused by similar viruses. Serologically indistinguishable viruses cause marble spleen disease of pheasants and avian adenovirus splenomegaly in broiler chickens.