The Asian Journal of Animal Science

Anamika ¹, Ranjana ², A. P. Mishra ²

Affiliations
1 P.G. Department of Zoology, Babasaheb Bhimrao Ambedkar, Bihar University, MUZAFFARPUR (BIHAR), IN
2 P.G. Department of Zoology, Babasaheb Bhimrao Ambedkar, Bihar University, MUZAFFARPUR (BIHAR), IN

Abstract

The present study is aimed to assess the histopathological impact of lethal (0.3 ppm) and sub lethal (0.06 ppm) concentrations of profenofos in the ovary of an air breathing fresh water teleost Channa gachua. Reduced size of mature oocytes, vacuolation in cytoplasm, damaged ovarian follicles, increase in inter-follicular space, breaking of ovarian wall, occurrence of necrosis, damaged structure of ovarian follicles, formation of fragmented ova and atretic oocytes and extrusion of karyoplasms was observed in mature oocytes.

Keywords

Profenofos, Histopathology, Channa gachua, Ovary.

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Mukesh Kumar Rai ¹, A. P. Mishra ¹

Affiliations
1 P.G. Department of Zoology, B.R. Ambedkar Bihar University, Muzaffarpur (Bihar), IN

Abstract

Channa gachua (family channidae) is an air breathing fish which live in oxygen depleted muddy water. The gill of fish is main site of gas exchange, ion regulation and nitrogen waste excretion .When fish exposed to sub-lethal concentration of Profenofos, an organophosphate pesticide, this pesticide enters into fish mainly through gills. The histopathological changes in the gills, due to exposure of Profenofos for 10 days, 15 days and 20 days include: curling and fusion in secondary lamellae, Hyperplasia, reduction in the respiratory surface area of filaments, fusion at the tip of the lamellae, sub-lamellar and sub epithelial space occur.

Keywords

Profenofos, Histopathology, Gill, Channa Gachua.

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