The Effect of Anesthetic Lavander (Lavendula officinalis) essential oil on histopathological and blood serum enzymes of Snow trout (Schizothorax zarudnyi)

Obtaining an appropriate anesthetic drug for rapid anesthesia with long term and safe recovery has always been the concern of fisheries science researchers. In this study, survey the effect of anesthetic essential oil of lavender (Lavendula officinalis) on Schizothorax zarudnyi was investigated. 260 Snow trout (Schizothorax zarudnyi) juveniles with an average total weight and length 58.69±1.50 g and 20.77±1.16 cm, respectively were anesthetized in four group treatment including, 0, 200, 300 and 400 ppm essential oil of lavender. The expriment carried out base on bath method in order to determine position sedative and anesthetic dose of Lavender essential oil. Kidney, Liver and Gills tissue and blood serum for evaluation of AST (asparate aminotransferase), ALT (alanine amino trasferase) and ALP (alkaline phosphatase) enzymes activity histopathological effects was done in two times, 10 minutes after anesthesia and 24 hours after anesthesia. The results showed that the essential oil of lavender in concentration of 300 ppm induces general anesthesia. Comparison of AST, ALT and ALP enzyme activity (p