Pathological Investigation of Liver Fluke Infection of Slaughtered Black Bengal Goat in a Selected Area of Bangladesh

This study was conducted in Sylhet district of Bangladesh to investigate the pathological effect of liver fluke in Black Bengal goats of different age groups, sex and in seasons. In this study, livers of male and female goats were collected randomly from slaughter house during a period of 1 (one) year (November, 2007 to October, 2008). A total of 325 Black Bengal goat livers were examined, of which 70 livers were found infected with Fasciola gigantica. The common histopathological changes found in this study were the migratory tract with lymphocytic infiltration, atrophy, necrosis and fatty changes in the liver. The study revealed that age of the animal has significant effect on Fascioliasis in goats. Significantly (P<0.01) highest infection rate was found in 2-2.5 years old animals (50%). The sex of the animal was also found as important determinants for Fascioliasis. In this study out of 219 male goat livers 30 (13.70%) were infected with Fasciola. On the other hand, out of 106 female goat livers, 40 (37.73%) were found positive with Fascioliasis. The data of origin of animals also collected which was not statistically significant.