ACUTE AND CHRONIC TOXIC EFFECT OF DIAZINON PESTICIDE EXPOSURE ON GILLS TISSUES OF LIZA ABU (HECKEL,1843)

Adi Abd Al-Razzaq  Basswm Y al-Khafagy Moaed J.Yass

ACUTE AND CHRONIC TOXIC EFFECT OF DIAZINON PESTICIDE EXPOSURE ON GILLS TISSUES OF LIZA ABU (HECKEL,1843)

2005

Adi Abd Al-Razzaq Basswm Y al-Khafagy Moaed J.Yass

Liza aim ﬁsh were exposed to different concentrations of the Diazinon pesticide (Organophosphate pestieide)'(diethyl 2—isopropyI -6- methyl -4- pyriinidiny'l phosphoro ~thionate) in the acute exposure (96) hour and chronic exposure (I4) days , l'llSlDptlI.l]0l0glCE1l examination showed the hyperplasia of tl1c gill tissue, some engorgement with blood of the secondary larnellae, epithelial separation . necrosis . clubbing of epithelial cells and fusion of adjacent secondary lamcllae. These changes different according to the pesticide concentration and it's exposure time

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