Performance and egg quality of Japanese quails submitted to cyclic heat stress

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dc.contributor.authorVercese, F [UNESP]
dc.contributor.authorGarcia, Edivaldo Antonio [UNESP]
dc.contributor.authorSartori, José Roberto [UNESP]
dc.contributor.authorSilva, A de P [UNESP]
dc.contributor.authorFaitarone, A B G [UNESP]
dc.contributor.authorBerto, Dirlei Antonio [UNESP]
dc.contributor.authorMolino, A de B [UNESP]
dc.contributor.authorPelícia, K
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUNIFENAS Dept. of Animal Science
dc.date.accessioned2014-05-20T13:50:30Z
dc.date.available2014-05-20T13:50:30Z
dc.date.issued2012-03-01
dc.description.abstractAiming at evaluating the influence of cyclic temperatures on the performance and egg quality of Japanese quails an experiment was carried out with 480 birds after egg production peak. Birds were housed in a bioclimatic chamber with automatic temperature control that contained two rooms, one maintained at thermoneutral temperature (21 ºC) and the other adjusted for the tested cyclic temperatures (24, 27, 30, 33 and 36 ºC at a time). Each room had a battery of five floors and ten cages, with a capacity of 24 birds per cage, totaling 240 birds per battery. Birds were fed iso-nutritious and iso-caloric diets. Data obtained under the tested cyclic temperatures were compared with those obtained under thermoneutral temperature. At the end of each experimental period (14 days) performance and egg quality parameters were evaluated. A completely randomized experimental design with two treatments (thermoneutral temperature and tested temperature) and ten replicates of 24 birds each. Cyclic increases of 27 ºC and higher in environmental temperature negatively affected bird performance, with reduced feed intake and consequent reductions in egg weight and mass. A cyclic increase of the environmental temperature to 36 ºC reduced the percentage of saleable eggs and egg production.en
dc.description.affiliationUNESP FMVZ
dc.description.affiliationUNESP FMVZ Dept. of Animal Production
dc.description.affiliationUNESP FMVZ Dept. of Genetic Improvement and Animal Nutrition
dc.description.affiliationUNIFENAS Dept. of Animal Science
dc.description.affiliationUnespUNESP FMVZ
dc.description.affiliationUnespUNESP FMVZ Dept. of Animal Production
dc.description.affiliationUnespUNESP FMVZ Dept. of Genetic Improvement and Animal Nutrition
dc.format.extent37-41
dc.identifierhttp://dx.doi.org/10.1590/S1516-635X2012000100007
dc.identifier.citationRevista Brasileira de Ciência Avícola. Fundação APINCO de Ciência e Tecnologia Avícolas, v. 14, n. 1, p. 37-41, 2012.
dc.identifier.doi10.1590/S1516-635X2012000100007
dc.identifier.fileS1516-635X2012000100007.pdf
dc.identifier.issn1516-635X
dc.identifier.lattes6743591347106727
dc.identifier.lattes2714999125459575
dc.identifier.lattes7728883010098049
dc.identifier.scieloS1516-635X2012000100007
dc.identifier.urihttp://hdl.handle.net/11449/18022
dc.identifier.wosWOS:000304723800007
dc.language.isoeng
dc.publisherFundação APINCO de Ciência e Tecnologia Avícolas
dc.relation.ispartofRevista Brasileira de Ciência Avícola
dc.relation.ispartofjcr0.463
dc.rights.accessRightsAcesso aberto
dc.sourceSciELO
dc.subjectCoturnix coturnix japonicaen
dc.subjectegg productionen
dc.subjectenvironmental temperatureen
dc.subjectheat stressen
dc.subjectpost-peak egg productionen
dc.titlePerformance and egg quality of Japanese quails submitted to cyclic heat stressen
dc.typeArtigo
dcterms.licensehttp://www.scielo.br/revistas/rbca/paboutj.htm
unesp.author.lattes6743591347106727
unesp.author.lattes2714999125459575
unesp.author.lattes7728883010098049
unesp.author.orcid0000-0003-2691-8250[3]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Medicina Veterinária e Zootecnia, Botucatupt

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