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Heat or cold chronic stress affects organ weights and Hsp70 levels in chicken embryos

dc.contributor.authorGivisiez, P. E. N.
dc.contributor.authorSilva, M. M. da
dc.contributor.authorMazzi, C. M.
dc.contributor.authorFerro, M. I. T.
dc.contributor.authorFerro, J. A.
dc.contributor.authorGonzales, E.
dc.contributor.authorMacari, Marcos [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:15:32Z
dc.date.available2014-05-20T13:15:32Z
dc.date.issued2001-03-01
dc.description.abstractThis study was carried out with the objective of evaluating the effect of heat (38.8 degreesC) or cold (35.8 degreesC) stress on chicken embryo development and tissues Hsp70 levels, after the 13th day of incubation. Embryo weight (percent egg weight), organ weight (percent embryo weight) and Hsp70 levels (ng Hsp70 mug(-1) total protein) in different tissues (liver, breast muscle, heart, lungs, brain and kidney) were studied at the end of incubation. Cold stress induced a lower embryo weight and lower kidney and lungs weights, whereas heart and liver were lighter in heat-stressed embryos. An interaction between temperature and age was obtained only for Hsp70 levels in kidney and heart. Cold-stressed embryos showed higher Hsp70 levels in the brain, lungs and liver; a decrease in brain and breast muscle Hsp70 levels was seen from the 19th to 20th days in control embryos. Hsp70 levels increased with age in kidneys of control embryos and in heart of heat- and cold-stressed embryos. In conclusion, this study showed that chicken embryo organ weights are affected by incubation temperature, and that Hsp70 expression is tissue dependent (higher levels being seen in the brain) being cold-stress more effective in increasing Hsp70 levels in most studied tissues.en
dc.description.affiliationUNESP, Fac Ciências Agr & Vet, Dept Morfol & Fisiol Anim, Jaboticabal, SP, Brazil
dc.description.affiliationUNESP, Fac Ciências Agr & Vet, Dept Tecnol, Jaboticabal, SP, Brazil
dc.description.affiliationUnespUNESP, Fac Ciências Agr & Vet, Dept Morfol & Fisiol Anim, Jaboticabal, SP, Brazil
dc.description.affiliationUnespUNESP, Fac Ciências Agr & Vet, Dept Tecnol, Jaboticabal, SP, Brazil
dc.format.extent83-87
dc.identifierhttp://dx.doi.org/10.4141/A00-049
dc.identifier.citationCanadian Journal of Animal Science. Ottawa: Agricultural Inst Canada, v. 81, n. 1, p. 83-87, 2001.
dc.identifier.doi10.4141/A00-049
dc.identifier.issn0008-3984
dc.identifier.lattes0147241723612464
dc.identifier.lattes5713558572926669
dc.identifier.urihttp://hdl.handle.net/11449/2653
dc.identifier.wosWOS:000168808800011
dc.language.isoeng
dc.publisherAgricultural Inst Canada
dc.relation.ispartofCanadian Journal of Animal Science
dc.relation.ispartofjcr0.657
dc.relation.ispartofsjr0,403
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectchicken embryopt
dc.subjectDevelopmentpt
dc.subjectHsp70pt
dc.subjectincubation temperaturept
dc.titleHeat or cold chronic stress affects organ weights and Hsp70 levels in chicken embryosen
dc.typeArtigo
dcterms.licensehttp://www.aic.ca/journals/instructions.cfm
dcterms.rightsHolderAgricultural Inst Canada
unesp.author.lattes0147241723612464
unesp.author.lattes5713558572926669
unesp.author.orcid0000-0002-6850-7145[7]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt
unesp.departmentMorfologia e Fisiologia Animal - FCAVpt
unesp.departmentTecnologia - FCAVpt

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