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.

Marble spleen disease in chickens.

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. The etiologic agent is a type ii avian adenovirus closely related to hemorrhagic enteritis virus of turkeys and splenomegaly virus of chickens.

However they are. 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. The virulence of the virus varies but morbidity may be 100 and mortality 10 60. The lesions are pathognomonic.

Canada and europe during the last 30 years. Both diseases are caused by similar viruses. The source of virus is unknown. Species specific differences in clinical response are thought to be related to differences in the target organs for anaphylaxis and variation in.