Authors : R. G. Patil, S.G. Nanaware and M. P. Gujar
Page Nos : 46-48
Description :
The plant Tephrosia purpurea shows piscicidal properties. The economically important freshwater fishes (Labeo rohita, Catla catla and Cyprinus carpio) were exposed to the sublethal concentration (115 ppm) of alcoholic extract of seeds of Tephrosia purpurea for 96 hrs. The toxic compounds in the seeds Tephrosia purpurea showed piscicidal properties and induced haemolysis and affected almost all haematological parameters. All parameters in the blood except E. S. R. were found to be decreased in all the fishes while E.S. R. was increased after 96 hrs of intoxication. Comparatively, haemolytic activity was lowest in C. carpio and highest in the L. rohita. The results were discussed in relation to mortality, metabolic activity and behaviour of these fishes.
Keywords - Tephrosia purpurea, Phytotoxin, Fish, Haematology
