Marble Spleen Disease In Chickens

Canada and europe during the last 30 years.

Marble spleen disease in chickens.

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. There is prominent macrophage phagocytic cell hyperplasia and intranuclear inclusion bodies in the spleen distended bloody intestines and pseudomembranous fibrinonecrotic. 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 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.

The lesions are pathognomonic. The virulence of the virus varies but morbidity may be 100 and mortality 10 60. Marble spleen disease is caused by a type ii avian adenovirus. Both diseases are caused by similar viruses.

Marble spleen disease msd is a contagious disease of captive reared ring necked pheasants phasianus colchicus characterized by variable mortality and high morbidity. Species specific differences in clinical response are thought to be related to differences in the target organs for anaphylaxis and variation in. The source of virus is unknown. However they are.