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dc.contributor.authorTan-Fermin, Josefa D.
dc.date.accessioned2013-02-04T09:45:34Z
dc.date.available2013-02-04T09:45:34Z
dc.date.issued1992
dc.identifier.citationTan-Fermin, J. D. (1992). Induction of oocyte maturation and ovulation in the freshwater Asian catfish, Clarias macrocephalus by LHRHa and pimozide. Journal of Applied Ichthyology, 8(1-4), 90–98.en
dc.identifier.issn0175-8659
dc.identifier.urihttp://hdl.handle.net/10862/1399
dc.description.abstractThree experiments were conducted to determine the effects of a simultaneous injection of varying doses of luteinizing hormone-releasing hormone analogue (LHRHa; 0.005–0.10 μg)/body weight (BW) in combination with a fixed dose of pimozide (PIM; 1 μg)/g BW on oocyte maturation and ovulation in the catfish Clarias macrocephalus (body weight: 39 to 167 g). This was done by monitoring the development and size of the oocytes after hormone injection at various sampling intervals for 48 hours. In Experiment I (March 1989), only the fish injected with 0.10 μg LHRHa + 1μg PIM/g BW underwent final maturation and ovulation. However, oocyte maturation and ovulation were observed in all treated fish in Experiment II (April 1989). Oocyte maturation and ovulation were also induced except in fish injected with the lower dose combination (0.005 μg LHRHa + 1 μg PIM/g BW) or PIM alone (1 μg/g BW) in Experiment III (September 1989). No maturation was observed in all vehicle-injected control fish in the three experiments. Mean egg diameter of fish that were induced to mature increased during ovulation but remained similar in size in fish which did not undergo final maturation. This study showed that captive C. macrocephalus can be induced to undergo oocyte maturation and ovulation at 15 to 16 h after a simultaneous injection of 0.01 to 0.10 μg LHRHa + 1 μg PIM/g BW.en
dc.language.isoenen
dc.publisherBlackwell Publishingen
dc.subjectClarias macrocephalus
dc.subjectPhilippinesen
dc.titleInduction of oocyte maturation and ovulation in the freshwater Asian catfish, Clarias macrocephalus by LHRHa and pimozideen
dc.typeArticleen
dc.citation.volume8
dc.citation.issue1-4
dc.citation.spage90
dc.citation.epage98
dc.citation.journalTitleJournal of Applied Ichthyologyen
dc.subject.asfaBody weighten
dc.subject.asfaExperimental researchen
dc.subject.asfaFeedingen
dc.subject.asfaFish physiologyen
dc.subject.asfaHormonesen
dc.subject.asfaOogenesisen
dc.subject.asfaOvulationen
dc.subject.asfaSexual maturityen
dc.identifier.doi10.1111/j.1439-0426.1992.tb00671.x


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  • AQD [1100]
    These papers were contributed by AQD staff to various national and international journals

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