Volume : 2, Issue : 12, December - 2013

Histopathological Alterations occurred Due to Chromium Intoxication in the Tissues of an Indian Common Carp, Labeo rohita (Ham.)

M. Praveena, K. Jayantha Rao

Abstract :

Chromium is one of the heavy metals present in the Tannery effluent. Chromium is known to cause various health effects. The present investigation was carried out to study the effect of Chromium on histological alterations in the kidney of a fresh water fish Labeo rohita. The fishes were exposed to sub–lethal concentration (1/10th of LC50/96 hrs) of chromium for 7days and 30 days respectively. Histological changes like Necrosis in Glomerulus, Moderate Necrosis in Bowman’s capsule, Necrosis in Collecting Tubule, Degenerative changes in Glomerulus and Necrosis in Haemopoietic tissue were observed in the fishes exposed to chromium in both acute and chronic periods. All these changes were more pronounced in 30 days chromium exposed fish, Labeo rohita.