Eugenol and tricaine methanesulfonate as anhestesics for the pearl cichlid

Anesthesia reduces the handling process duration and prevent fish injuries. The anesthetic effect ideal concentrations of eugenol tricaine methanesulfonate (MS-222) were tested for pearl cichlid (Geophagus brasiliensis) juveniles with an average weight 4.4 g in water at 24ºC. criterion determining optimal dose considered induction time one minute. Experiment 1 25, 75, 150 300 mg L-1 eugenol. best results obtained doses L-1. 2 aimed to establish a more accurate result by testing 180, 210, 240 270 L-1, led estimation 217 induce anesthesia 3 evaluated 200, 300, 400, 500 600 tricaine, which concentration 294 was estimated No significant differences observed recovery times when using either anesthetics. mortality within 24 hours after experiments any present study recommends or 394 cichlid.