2011
DOI: 10.1590/s0034-737x2011000300006
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Determinação do sexo em catfish de canal (Ictalurus punctatus) utilizando endoscopia

Abstract: Sex determination in channel catfish (Ictalurus punctatus) using endoscopySex identification in fish is an important practice for the development of broodstock management strategies. Endoscopy can be used for sex identification, although in fish, it is still restricted. Therefore, the objective of this study was to validate the use of rigid endoscope via the urogenital pore to determine the sex of the catfish (Ictalurus punctatus afinesque, 1818). The equipment used was a Multi-Purpose Rigid ™ 30º endoscope, w… Show more

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“…Several methods have been described to determine the gonadal development stage of maturation in fish. In some species, the gonads can be viewed with help to endoscope [7][8][9]. however this method, although efficient in the evaluation of advanced stages of vitellogenesis, it can present problems when the animals are at early stages, where only fat can be collected, it is necessary to perform various collections, which can be stressful to the reproducer.…”
Section: Reproductive Parameters In Femalesmentioning
confidence: 99%
“…Several methods have been described to determine the gonadal development stage of maturation in fish. In some species, the gonads can be viewed with help to endoscope [7][8][9]. however this method, although efficient in the evaluation of advanced stages of vitellogenesis, it can present problems when the animals are at early stages, where only fat can be collected, it is necessary to perform various collections, which can be stressful to the reproducer.…”
Section: Reproductive Parameters In Femalesmentioning
confidence: 99%