Marble Spleen Disease

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.

Marble spleen disease.

It has been a significant cause of mortality in many areas of the united states canada and europe during the last 30 years. Mortality rate reached 5 6 per cent the male birds being affectedmuch more rarely than the female ones up to 1 8 per cent. Both diseases are caused by similar viruses. These can vary from bleeding gums petechiae bruises that occur spontaneously and easily on the skin prolonged menstrual periods and heavy on the female.

The source of virus is unknown but there is easy lateral spread within flocks the virus surviving in frozen faeces for months and weeks in litter. Have you found the page useful. The type ii adenoviruses include marble spleen disease virus of. Both diseases are caused by similar viruses.

Marble spleen disease msd is a contagious disease of confinement raised pheasants. Both diseases are caused by similar viruses. Marble spleen disease is an acute respiratory disease of pheasants characterized by depression enlarged mottled spleens pulmonary congestion and death. Infection typically occurs when birds ingest the virus which is often introduced to a flock through contaminated clothing or equipment.

The disease was found to run a peracute course with a 100 per centlethal effect. Msd is an acronym for marble spleen disease. The etiologic agent is a type ii avian adenovirus closely related tohemorrhagic enteritis virus of turkeys and splenomegaly virus of chickens. Stoĭkov d nikiforov i.

Marble spleen disease msd is also another viral disease of adult gamebirds that causes sudden death and is caused by a siadenovirus formerly group ii adenovirus. Described are the clinical and epizootiological aspects and the morphologicallesions in pheasants affected with the marble spleen disease at its firstoutbreaks. Msd means marble spleen disease. Marble spleen disease msd is a contagious disease of captive reared ring neckedpheasants phasianus colchicus characterized by variable mortality and highmorbidity.

The virulence of the virus varies but morbidity may be 100 and mortality 10 60. Msd is a shorter form of marble spleen disease. Marble spleen disease is an acute respiratory disease of pheasants. Serologically indistinguishable viruses cause marble spleen disease of pheasants and avian adenovirus splenomegaly in broiler chickens.

Grossly the lungs are heavily. Marble spleen disease is caused by a type ii avian adenovirus. Pheasants that have contracted this virus exhibit depression enlarged mottled spleens and lung congestion.