Induced spawning of sea bass, Lates calcarifer, and rabbitfish, Siganus guttatus, after implantation of pelleted LHRH analogue

Harvey, B.; Nacario, Jonathan F.; Crim, Lawrence W.; Juario, Jesus V.; Marte, Clarissa L.

doi:10.1016/0044-8486(85)90007-9

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Ngày

1985

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Captive Lates calcarifer broodstock at Tigbauan, Iloilo (Philippines) were implanted with cholesterol-based pellets of the LHRH analogue D-Trp⁶-desGly¹⁰-LHRH ethylamide or D-hArg(Et₂)⁶, Pro⁹-NHet-LHRH at doses between 9.0 and 23.5 μg/kg body weight. In May, one of ten LHRH-treated females released partially hydrated ova into the tank 4 days after implantation. In July, at least one (and probably four) of five LHRH-treated females spawned in the tank 2 days after implantation; 2.6 million hatchlings were collected. In August, both LHRH-treated females spawned in the tank 2 days after implantation; 978 000 hatchlings were collected. None of the sham-operated control fish spawned in any of the experiments.

Captive Siganus guttatus broodstock implanted with silastic-based pellets of the LHRH analogue D-Nal (2)⁶LHRH spawned 1–2 days earlier than sham-operated controls.

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http://hdl.handle.net/10862/1163

Suggested Citation

Harvey, B., Nacario, J. F., Crim, L. W., Juario, J. V., & Marte, C. L. (1985). Induced spawning of sea bass, Lates calcarifer, and rabbitfish, Siganus guttatus, after implantation of pelleted LHRH analogue. Aquaculture, 47(1), 53-59. https://doi.org/10.1016/0044-8486(85)90007-9