eng Enviro Research Publishers Current Agriculture Research Journal 2347-4688 2321-9971 2018-08-25 6 2 213 217 4289 article Shivani Sharma 1 Department of Zoology and Applied Aquaculture, Barkatullah University, Bhopal (M.P), India. The present study examined the histopathological effect of lead nitrate on the testis of fish (Channa striatus). Fishes having average length 20-25 cm and weight 50-60 g were distributed into four groups. The fishes of group I were kept as control, while II, III and IV were exposed to sub lethal concentrations (8, 18 and 28 mg/l) of lead nitrate for 30, 60 and 90 days. Examined sections revealed that the testis of C. striatus had damaged wall of seminiferous tubules, disorganization of seminiferous tubules, clustering of seminiferous tubules, deshaped and damaged seminiferous tubules, indistinguishable leydig’s cells, reduction in the number of leydig’s cells, necrosis, vacuolization, centralization of spermatozoa and reduction in the number of spermatozoa. The result of the present study clearly indicates that testicular histopathological alterations depend on duration of exposure and concentration of lead nitrate in the testis of Channa striatus. http://www.agriculturejournal.org/volume6number2/histopathological-alteration-due-to-the-effect-of-lead-nitrate-on-the-testis-of-freshwater-fish-channa-striatus-bloch-1793/ Channa Striatus; Histopathology; Lead Nitrate; Testis