بررسي كشتارگاهي و آسيب شناسي آدنوماتوزريوي گوسفند

Sheep pulmonary adenomatosis: A study on prevalence and pathological findings

Sheep pulmonary adenomatosis (Jaagsiekte) is a chronic, progressive pneumonia, with the development of typical ademomatous ingrowths of the alveolar walls. Jaasiekte is caused by a retrovirus with RNA genome. The adenomatous ingrowths of alveolar epithelium encroach gradually upon alveolar air space so that anoxic anoxia occurs. There is no inflammation and no toxemia. This research was carried out on 1000 slaughtered sheep for determining the prevalence of pulmonary adenomatosis in Chahar-Mahal va Bakhtiary. Results indicated that, 47 cases had some gross lesions that similar to adenomatosis, but only 30 cases were positive at the level of light microscopic examination. Thus the prevalence was estimated approximately 3 percent in Chahar- Mahal va Bakhtiary.