the affection of diazinon insecticide and butachlor herbicide on the vimba vimba persa free larva liver tissue and gill

at first, in order to define acute toxicity of diazinon insecticide and butachlor herbicide, acute toxicity tests (lc5096h) were done, based on standard method (1989) o.e.c.d. in static way and for 96 hours. and the amount of acute toxicity (lc5096h) of diazinon and butachlor in 1 to 2 gram vimba vimba persa fry larva was determined to be 0.09 and 0.61 respectively. in order to do histology studies of diazinon insecticide and butachlor herbicide on the vimba vimba persafry larva liver tissue and gill, those fish weight less than 2 grams were exposed to density less than lc5096h (0.06 and 0.45 mgr./l for treating diazinon and butachlor respectively) for one week. samples were taken from liver tissue and gill of those treats which were exposed to toxicant and those which were testifier. according to tissue pathology, necrosis and hyperemia in liver tissue and treat which were exposed to butachlor toxicity, hyperemia and atrophy in liver tissue and hyperplasia, adhesion and widening of secondary lamlas in the gill tissue of butachlor treats were seen