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Performance of laying hens and economic viability of different climatization systems

dc.contributor.authorSilva, Gabriela F. [UNESP]
dc.contributor.authorPereira, Danilo Florentino [UNESP]
dc.contributor.authorBueno, Leda G.F. [UNESP]
dc.contributor.authorSantos, Tatiane S. [UNESP]
dc.contributor.authorTavares, Bartira O. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:29:41Z
dc.date.available2014-05-27T11:29:41Z
dc.date.issued2013-06-14
dc.description.abstractSince thermal environment affects production, egg quality and laying hens' mortality rates, it is highly relevant to control the thermal environment within poultry houses so that the best financial profits could be obtained. Three commercial poultry houses with different climatization systems are analyzed in current research: a poultry house with tunnel-like ventilation and pad cooling; a poultry house with natural ventilation and nebulization; a poultry house with simple natural ventilation. Their thermal environment, production, egg quality and laying hens' mortality rates among different poultry houses and at different areas of the same poultry house are compared. Economic profits based on difference in electric energy consumption by climatization systems and on the laying hens' productivity of each poultry house are calculated. Electricity meters were installed within the electrical circuits of the climatization and light systems of the three poultry houses. Data were registered between December 2011 and March 2012 and results showed that all the poultry houses featured heterogeneity in internal thermal environment with faults in the climatization systems. Important differences were reported in egg production and quality caused by overheating. The poultry house with tunnel-like ventilation and pad cooling had the best thermal isolation from the external environment that resulted in a 12.04% improvement in production, decrease between 30 and 40% in laying hens' mortality rates and the best economic result. © G.F. Silva et al., 2013.en
dc.description.affiliationCampus de Dracena Universidade Estadual Paulista, São Paulo
dc.description.affiliationCampus de Tupã Universidade Estadual Paulista, São Paulo
dc.description.affiliationUnespCampus de Dracena Universidade Estadual Paulista, São Paulo
dc.description.affiliationUnespCampus de Tupã Universidade Estadual Paulista, São Paulo
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 09/10564-3
dc.description.sponsorshipIdFAPESP: 13/07178-0
dc.format.extent286-294
dc.identifierhttp://dx.doi.org/10.4081/ijas.2013.e47
dc.identifier.citationItalian Journal of Animal Science, v. 12, n. 2, p. 286-294, 2013.
dc.identifier.doi10.4081/ijas.2013.e47
dc.identifier.file2-s2.0-84878783985.pdf
dc.identifier.issn1594-4077
dc.identifier.scopus2-s2.0-84878783985
dc.identifier.urihttp://hdl.handle.net/11449/75656
dc.identifier.wosWOS:000321347700024
dc.language.isoeng
dc.relation.ispartofItalian Journal of Animal Science
dc.relation.ispartofjcr0.990
dc.relation.ispartofsjr0,434
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectElectricity
dc.subjectEnvironment
dc.subjectFinancial gain
dc.subjectPrecision animal production
dc.titlePerformance of laying hens and economic viability of different climatization systemsen
dc.typeArtigo
dcterms.licensehttp://www.pagepress.org/open_access.html
dspace.entity.typePublication
unesp.author.orcid0000-0003-4602-8837[2]
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Ciências e Engenharia, Tupãpt
unesp.departmentAdministração - Tupãpt

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