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Abstract

HISTOLOGICAL ALTERATION OF HERBICIDE GLYPHOSATE ON THE FRESH WATER CRABS BARYTELPHUSA CUNICULARIS

Dr. Ansari Nayab Taher* and Faiza Iram Nazrul Muneeb

ABSTRACT

Glyphosate (N-phosphonomethyl glycine) is a broad spectrum herbicide and crop desiccant. It is an organophosphorous compound, specially a phosphonate. Herbicides are synthetic compounds having the ability to inhibit the growth of plants or to kill it, espically annual broad leaf weeds and grasses that compete with crops these herbicide without affecting crop plant may get accumulated in it as well as may leached to water through soil unknowingly human beings may get exposed to such chemicals. The purpose of the present study was to examine the glyphosate exposure on histology in various tissues of freshwater crab Barytelphusa Cunicularis. The crabs were exposed to glyphosate round-up, concentration of 0.54 ppm (sub-lethal) for 28 days with the parallel untreated control. The experimental gill tissue exhibited epithelial lifting, edema, necrosis fusion of secondary lamellae and hemorrhage. The vas-deference irregular appearance of spermatophore matrix, reduced spermatophores & epithelial vacuolar degeneration.

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