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Propagación artificial de peces de aguas templadas: manual para extensionistas.











Woynarovich; E.;Horvath, L.Propagación artificial de peces de aguas templadas: manual para extensionistas.FAO Documento Técnico de Pesca.No.201. Rome. FAO. 1981. 187p.


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    In this paper techniques developed for artificial reproduction of Bagre Negro (Rhamdia sapo) are described. Corionic gonadotrophin was used for the hormonal induction. The relationship between water temperature and the induction period (latent period) while using artificial insemination (stripping) was verified and is described. For the first time, natural spawning in aquarium was tested and used, with promissing results. The relationship between water temperature and the incubation period w as also established. The highest percentage of positive responses to hormonal induction of the females, was obtained in the month of October. During the study period a decreasing volume of the eggs and consequently of the larvae size at hatching was observed. The relationship between egg and larval size was determined. It is concluded that the developed techniques will allow the production of catfish larvae at a large scale.
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