Stress responses in juvenile pacu (Piaractus mesopotamicus) submitted to repeated air exposure.

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dc.contributor.authorBiller, Jaqueline Dalbello
dc.contributor.authorBendhack, Fabiano
dc.contributor.authorTakahashi, Leonardo Susumu
dc.contributor.authorUrbinati, Elisabeth Criscuolo [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:15:37Z
dc.date.available2014-05-20T13:15:37Z
dc.date.issued2008-01-01
dc.description.abstractPacu juveniles (5.2 [plus or minus] 1.5 g) were submitted to two one-minute air exposures in a 24h interval, and sampled before the exposure (control) and 5, 15, 30 and 60 min., 24 and 48h afterwards for whole-body cortisol, sodium, potassium and calcium ion concentrations. For the first air exposure, there was a trend of increased cortisol concentration after 15 min., whereas in the second air exposure, the cortisol concentration increased significantly within 5 min. after stress was induced. Sodium ion concentration increased significantly 24h after both air exposures. Potassium concentration presented fluctuations over the experimental period. Calcium ion concentration increased progressively from 5 to 30 min., in both air exposures. The repeated air exposures exacerbated the cortisol response, but they did not affect the recovery ability of pacu over the experimental period. Additionally, the whole-body cortisol measurement might be a reliable indicator of stress, when sampled fish are smaller and blood volumes are very low, making samples inadequate for analysis.en
dc.description.affiliationUniv Estadual Paulista, Fac Ciencias Agrarias and Vet, São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Fac Ciencias Agrarias and Vet, São Paulo, Brazil
dc.format.extent89-93
dc.identifierhttp://dx.doi.org/10.4025/actascianimsci.v30i1.3618
dc.identifier.citationActa Scientiarum Animal Sciences. , v. 30, n. 1, p. 89-93, 2008.
dc.identifier.doi10.4025/actascianimsci.v30i1.3618
dc.identifier.fileZOORECZOOR14410059941.pdf
dc.identifier.issn1807-8672
dc.identifier.lattes0089991497257336
dc.identifier.lattes3860915077534516
dc.identifier.orcid0000-0002-5820-188X
dc.identifier.urihttp://hdl.handle.net/11449/2708
dc.identifier.wosZOOREC:ZOOR14410059941
dc.language.isoeng
dc.relation.ispartofActa Scientiarum: Animal Sciences
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.titleStress responses in juvenile pacu (Piaractus mesopotamicus) submitted to repeated air exposure.en
dc.typeArtigo
dcterms.licensehttp://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/index
unesp.author.lattes0089991497257336
unesp.author.lattes3860915077534516
unesp.author.orcid0000-0002-5820-188X[3]
unesp.author.orcid0000-0002-5820-188X[3]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt

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Artigos - Morfologia e Fisiologia Animal - FCAV