Coleta, reprodução e larvicultura do Pseudopimelodus mangurus e desenvolvimento embrionário do Pimelodus maculatus e Pseudopimelodus mangurus em diferentes temperaturas.

dc.contributor.advisorSenhorini, José [UNESP]
dc.contributor.authorArashiro, Dilberto Ribeiro
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-04-24T20:17:11Z
dc.date.available2018-04-24T20:17:11Z
dc.date.issued2018-02-26
dc.description.abstractThe aim of this study was to describe a procedure for sampling, reproduction, and first feeding of the Neotropical catfish Pseudopimelodus mangurus. Wild adult P. mangurus specimens were collected in the Mogi Guassu river, and subsequently, were induced to spawn in laboratory conditions. After hand-stripping the females, the average weight of the oocytes was 143 ± 1.66 g, having an average of 718 ± 49.802 oocytes g-1. The diameter of zygotes was about 1226.354 ± 47.719 µm nonhydrated to 1761.256 ± 26.412 µm after hydration. The fertilization rates were 98.00 ± 0.63%, and the hatching rate were 68.94 ± 11.83%. Three days after hatching, the larvae started exogenous feeding. First feedings were made with 6 different treatments, in which the best results arose with sequential feeding with artemia nauplii, Astyanax altiparanae, and Prochilodus lineatus larvae. This condition resulted in a growth rate of 2012.795 ± 44.891 µm by the tenth day of experiment, higher survival rate (65 ± 0.09%), and a lower cannibalism rate 14 ± 0.03% on the tenth day after exogenous feed. The data obtained in this study is important for reproductive biotechniques and mass production of the endangered catfish P. mangurus.en
dc.description.sponsorshipOutra
dc.description.sponsorshipIdAES Tietê/ANEEL (Research & Development Project #0064-1052/2014)
dc.identifier.aleph000900570
dc.identifier.capes33004064012P8
dc.identifier.urihttp://hdl.handle.net/11449/153708
dc.language.isoeng
dc.publisherUniversidade Estadual Paulista (Unesp)
dc.rights.accessRightsAcesso aberto
dc.subjectCollecten
dc.subjectReproductionen
dc.subjectLarvaeen
dc.subjectCatfishen
dc.subjectSiluridaeen
dc.subjectincubationen
dc.subjectPGCen
dc.subjecttemperatureen
dc.subjectSurrogate propagationen
dc.titleColeta, reprodução e larvicultura do Pseudopimelodus mangurus e desenvolvimento embrionário do Pimelodus maculatus e Pseudopimelodus mangurus em diferentes temperaturas.pt
dc.title.alternativeCollect, reproduction and first feeding of Pseudopimelodus mangurus and embryonic developmento of Pimelodus maculatus and Pseudopimelodus mangurus in different temperaturesen
dc.typeDissertação de mestrado
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Botucatupt
unesp.embargo6 meses após a data da defesapt
unesp.graduateProgramCiências Biológicas (Zoologia) - IBBpt
unesp.knowledgeAreaReprodução animalpt
unesp.researchAreaReprodução, genética e desenvolvimentopt
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