Abstract
Fishes had exhibited a time-honored place in the economical nutrition. Chlorpyrifos is a broad-spectrum organophosphate for agriculture. This study aimed to examine pathological changes on gills and kidneys in Nile tilapia and evaluate the protective role of vitamin E supplementation. Fish were exposed to 0, 2.64 and 5.28 mu g/l lorsban and/or vitamin E. Fishs were divided into six groups (control, 2.64 mu g/l lorsban, 5.28 mu g/l lorsban, vitamin E, vitamin E + 2.64 mu g/l lorsban vitamin E + 5.28 mu g/l lorsban treated). Fish behavior was observed. Samples were taken in fixed times for behavioural morphometrical and histopathological studies. The fishes exhibited slowly down swimming, color fading and retardation in opercular movement. The vitamin E + 2.64 mu g/l lorsban and vitamin E + 5.28 mu g/l lorsban treated fish showed abnormalities in their behavior. Gills and kidney of the 2.64 mu g/l lorsban treated group showed several pathological changes throughout the experimental periods. The gills of the vitamin E + 5.28 mu g/l lorsban fish treated group showed also pathological changes. We may conclude that the effect of lorsban on the fish is well noticed on their behavioral and histopathological aspects of the gills and kidney tissues and vitamin E may be partially able to ameliorate these effects. [Aliaa M. Issa, Azza M. Gawish, Gehad M. Esmail Histological Hazards of Chlorpyrifos Usage on Gills and Kidneys of Tilapia nilotica and the Role of Vitamin E Supplement in Egypt] Life Science Journal. 2011; 8(4): 113-123] (ISSN: 1097-8135). http://www.lifesciencesite.com.