The potential of cinnamon (cinnamomum sp.) as anesthetic agent in aquaculture

Abstract

Eugenol-based organic anesthetic commonly obtain from clove oil has become a popular fish anesthetic for invasive fisheries producer, but there was no study on potential of cinnamon, one of the other source of eugenol component as an anesthetic agent. In this study, juvenile hybrid red tilapia were used as a model species to examine the potential cinnamon as anesthetic agent in four gradation of cinnamon concentration (2.5 gL-1, 5.0 gL-1, 7.5 gL-1 and 10.0 gL-1) and compare with MS-222 (0.08 gL-1) anesthetic agent commonly used as fish sedation. Induction time, recovery time and fish behaviors have were observed to determine the stage of anesthesia. All cinnamon concentration showed a result of stage 3 of anesthesia similar to MS-222 result which indicates cinnamon extraction also can be an effective anesthetic agent at concentration of 2.5 gL -i. Anesthesia stage 3 was the optimum level for fish sedation especially for fish transportation and handling. Cinnamon extraction showed significant effectiveness as MS-222 which indicated that cinnamon extraction can be utilized in handling related husbandry practices for aquaculture.