Anesthesia of tambaqui Colossoma macropomum (Characiformes: Serrasalmidae) with the essential oils of Aniba rosaeodora and Aniba parviflora and their major compound, linalool

作者：Baldisserotto Bernardo^*; Barata Lauro E S; Silva Amanda S; Lobato Waldinete F F; Silva Lenise L; Toni Candida; Silva Lenise V F

来源：Neotropical Ichthyology, 2018, 16(1): e170128.

DOI：10.1590/1982-0224-20170128

• Anesthetics
• Linalool isomers
• Rosewood oil
• Sedation
• Swimming behavior

The aim of this study was to determine the anesthetic efficacy of the essential oils (EOs) of Aniba rosaeodora (EOAR) and Aniba parviflora (EOAP) and one of their main compounds, linalool, in two forms: synthetic and extracted from EOAR (linalool-AR) in tambaqui (Colossoma macropomum). In the first experiment, the anesthetic induction and recovery of juveniles exposed to 25-200 mu L L-1 of EOAR or 50-300 mu L L-1 of EOAP or synthetic linalool or linalool-AR was evaluated. The second experiment observed the behavioral effects of long-term exposure (12h) of these EOs and linalools (5 and 10 mu L L-1). Fish exposed to 50200 mu L L-1 of EOAR and 100-300 mu L L-1 of EOAP and both linalools reached deep anesthesia between 1-10 min. Induction time for all anesthesia stages decreased with the increasing concentration of the anesthetics. Linalool-AR showed lengthier time for anesthesia induction in some stages and for recovery at 100 and 200 mu L L-1 in comparison to synthetic linalool. Normal equilibrium and swimming behavior was observed in fish exposed to the EOs and linalools throughout the 12 h of exposure. In conclusion, both EOs and linalools can be used as anesthetics and sedatives in tambaqui.

• 出版日期2018