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 source of virus is unknown. The etiologic agent is a type ii avian adenovirus closely related to hemorrhagic enteritis virus of turkeys and splenomegaly virus of chickens. Marble spleen disease is an acute respiratory disease of pheasants characterized by depression enlarged mottled spleens pulmonary congestion and death. Species specific differences in clinical response are thought to be related to differences in the target organs for anaphylaxis and variation in.

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. Both diseases are caused by similar viruses. However they are. Canada and europe during the last 30 years.

The virulence of the virus varies but morbidity may be 100 and mortality 10 60. There is prominent macrophage phagocytic cell hyperplasia and intranuclear inclusion bodies in the spleen distended bloody intestines and pseudomembranous fibrinonecrotic. 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 is caused by a type ii avian adenovirus.