• Journal of Aquaculture
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• v.15 no.4
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• pp.275-277
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• 2002

To obtain baseline data required for ploidy induction in Silurus asotus, a species with enormous aquacultural potential, histological events related to early embryonic development at 24$\pm$0.5$^{\circ}C$ are described. The histological location of the one-celled embryos indicated that metaphase stage of the first cleavage occurs at 31 min after insemination, when the highest yield can be obtained for the chromosome set manipulation.