Epidemiological and Histopathological study of Hepatic Hydatidosis in slaughter animal house in AL- Najaf AL- Ashraf Province

Abstract

 The study was carried out in Al-Najaf slaughterhouse to show the prevalence of hydatid cysts among the slaughtered animals during the period from 1/1/2011 to 31/12/2011 , the slaughtered animals were local breeds , both sex ( male & female ) , different ages and from different region in Al-Najaf province . the hydatid cysts was examined grossly by naked eye and palpation . The study was conducted on 114717  slaughtered animals ( 21799 cattle , 51332 sheep , 41586 goats ) . The morbidity of  hydatidosis was 0.93% in cattle , 0.62% in sheep and 0.61% in goats .

     The gross pathological changes of liver revealed variety necropsy findings represented by enlargement, discoloration to dark and red zones surrounding the hydatid cysts as responses to the inflammatory reaction. Cysts mostly protruded from the surface of the organ and sometimes embedded in the parenchyma. White wall covered the cysts has been observed .

            The histological changes of livers represented by infiltration of inflammatory cells such as neutrophils, monocytes and phagocytes. Hepatocytes appeared separated from each other and there was vaculation in liver tissue, which contain huge number of kupffer cells .