Abbas Raisi - Department of Clinical Studies, Faculty of Veterinary Medicine, Lorestan University, Khorram Abad, Iran
Farshid Davoodi - Student of Veterinary Medicine, Faculty of Veterinary Medicine, Lorestan University, Khorramabad, Iran
Soroush Afshar-Ghahremani - Student of Veterinary Medicine, Faculty of Veterinary Medicine, Lorestan University, Khorramabad, Iran
Shayan Taheri - Student of Veterinary Medicine, Faculty of Veterinary Medicine, Lorestan University, Khorramabad, Iran
Siavash Sharifi - Department of Clinical Sciences, Faculty of Veterinary Medicine, Shahrekord University, Shahrekord, Iran
Milad Adel - Department of Aquatic Animal Health & Disease, Iranian Fisheries Science Research Institute (IFSRI), Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran

Objective- The present study describes the anesthetic effects of essential oil of Lavender (Lavandula officinalis) in Convict cichlid fish (Cichlasoma nigrofasciata) in comparison with clove powder (Syzygium aromaticum).Study Design- experimental studyAnimals- ۲۵ Juvenile Convict cichlid fish with unknown sex and an average weight of ۴.۲ ± ۰.۵ g were used (n = ۵ for each experimental group per experiment).Methods- The fish were divided into five groups, initially with five fish per group. Each group was subjected to one of four final concentrations [۰.۳ and ۰.۵ g/l] of clove powder and [۱.۸ and ۳ cc/l] essential oil of Lavender and control group was for determination of the basal values for blood parameters. The times for sedation, pre-anesthesia, and anesthesia were recorded based on the behavioral events seen after exposing the fish to each aquarium. After induction of anesthesia, the fish were transferred to anesthetic-free aquariums, and recovery time was recorded. Blood samples were taken by dissecting peduncle just ۳۰ minutes after fish were placed in water contain anesthetics.Results- essential oil of Lavender had efficacy to anesthetize the fish, and its sedation was similar to the clove powder at a commensurate concentration in Convict cichlid fish. However, the anesthesia form was different.Conclusions and Clinical Relevance- Lavender oil as a sedative and anesthetic agent can be used in fish

lavender, Clove, Convict cichlid fish, anesthesia, Hematological changes