Dibutyl phthalate was investigated in the present study for histopathological studies in Oreochromis mossambicus. Fishes were exposed to 0.1% concentration of dibutyl phthalate and examined 96 hours after exposure. Histopathological changes like hypertrophy and hyperplasia, vacuolization in primary gill lamella; periportal inflammation; and vacuolization in renal tubular epithelia was observed in gill, liver and kidney respectively. The findings of the present study served as biomarkers for pollutant toxicity on fish health.
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