Anesthesia and anesthetic action mechanism of essential oils of Aloysia triphylla and Cymbopogon flexuosus in silver catfish (Rhamdia quelen)

The EO of C. flexuosus induced effective sedation (25 μL L−1) and anesthesia (150 and 300 μL L−1) without short-term mortality. The modulation of the BDZ site of the GABAA receptor in the anesthetic action mechanism of both EOs was not demonstrated.