Marble spleen disease in pheasants in Korea

Two pheasants maintained in outdoor closed pen died within several days aft er having a history of depression. On necropsy, the spleens from both pheas ants were enlarged about 3 times of their normal size and appeared mottled in color varying white to red. Histopathologically, there were diffuse seve re follicular necrosis in the spleen and congestion and edema in the lung. Intranuclear basophilic inclusion bodies, which are strongly positive to gr oup II avian adenovirus with immunohistochemistry, were noted in the spleen .