Histopathological effect of Acrylamide to common carp (Cyprinus carpio 1758 L.) gills

Histopathological effects of acrylamide on gills of the common carp (Cyprinus carpio, 1758 L.) were studied in the present thesis. Acrylamide was applied to carp during 96 hours in two different exposure concentrations of 10 and 50 mg/L. Gill tissue were evaluated using appropriate histopathological methods at the end of the experiments. Several histopathological lesions were found in acrylamide exposure groups such as fusion of secondary lammalae, shortening and thickening, exfoliation, oedema formation, cartilage tissue damage, epithelial lifting, hyperemia, telengiectasis, hyperplasia and increases in mucus cells, when compared with the control group. The major reason for these changes were due to gills being in direct contact with the environment. In addition the gill thin membranous structure and large surface area of the gills augmented this situation. Work of others with acrylamide showed similar results and were supporting our findings. Keywords: Cyprinus carpio, Acrylamide, Gill, Histopathlogy