Marble Spleen Disease

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.

Marble spleen disease.

Pheasants that have contracted this virus exhibit depression enlarged mottled spleens and lung congestion. Have you found the page useful. Msd means marble spleen disease. Both diseases are caused by similar viruses.

Marble spleen disease msd is a contagious disease of captive reared ring neckedpheasants phasianus colchicus characterized by variable mortality and highmorbidity. The type ii adenoviruses include marble spleen disease virus of. Marble spleen disease msd is a contagious disease of confinement raised pheasants. Marble spleen disease is an acute respiratory disease of pheasants.

Stoĭkov d nikiforov i. Both diseases are caused by similar viruses. The etiologic agent is a type ii avian adenovirus closely related tohemorrhagic enteritis virus of turkeys and splenomegaly virus of chickens. Marble spleen disease is caused by a type ii avian adenovirus.

Serologically indistinguishable viruses cause marble spleen disease of pheasants and avian adenovirus splenomegaly in broiler chickens. Infection leads to death. Species specific differences in clinical response are thought to be related to differences in the target organs for anaphylaxis and variation in viral pathotype. 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.

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. Marble spleen disease is an acute respiratory disease of pheasants characterized by depression enlarged mottled spleens pulmonary congestion and death. 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 disease was found to run a peracute course with a 100 per centlethal effect. Grossly the lungs are heavily. Described are the clinical and epizootiological aspects and the morphologicallesions in pheasants affected with the marble spleen disease at its firstoutbreaks. Msd is an acronym for marble spleen disease.

Marble spleen disease in pheasants marble spleen disease typically affects pheasants three to eight months of age. Msd is a shorter form of marble spleen disease. 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.