Rev. biol. mar. oceanogr. 46(3): 471-476
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The use of three anaesthetics for handling spotted rose snapper Lutjanus guttatus (Pisces, Lutjanidae) broodstock |
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Zohar Ibarra-Zatarain1, Leonardo Ibarra-Castro2, Luis Alvarez-Lajonchère3,
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1Alevines de México-Grupo Troutlodge, Ave. Miguel Alemán 927, Col. Centro, Mazatlán, Sinaloa, México2Centro de Investigación en Alimentación y Desarrollo A.C., Unidad Mazatlán, Avenida Sábalo Cerritos S/N, Mazatlán, Sinaloa, Código Postal 82010, Apartado Postal 711, México3Grupo Piscimar, Calle 41 No. 886, Nuevo Vedado, La Habana, C.P. 10600, Cuba
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Benzocaine, 2-phenoxyethanol and MS-222 were tested as anaesthetics for several handling procedures with spotted rose snapper Lutjanus guttatus broodstock. Significant differences in time for induction and recovery were found with specific doses, as well as a direct correlation between the dose and the induction time. Each procedure demanded specific anaesthesia levels where the stage of deep anaesthesia should not be surpassed. The most effective agent for inducing deep anaesthesia was MS-222, with the least amount of time required for induction and recovery when using 100 mg l-1. It was followed by 250 ml l-1 of 2-phenoxyethanol, which was less costly.
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Key words: Fish sedation, handling broodstock, Mexico
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