Strategies to minimize heat stress in broilers chickens

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dc.contributor.authorGarcia Neto, Manoel [UNESP]
dc.contributor.authorOliveira, Patrícia Martiniano de [UNESP]
dc.contributor.authorAlmeida, Marcel Alessandro de [UNESP]
dc.contributor.authorFerrari, Elis Domingos [UNESP]
dc.contributor.authorFaria Júnior, Max José de Araújo [UNESP]
dc.contributor.authorPinto, Marcos Franke [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2016-01-28T16:53:25Z
dc.date.available2016-01-28T16:53:25Z
dc.date.issued2014
dc.description.abstractThe objective of this study was to evaluate the application of early age thermal conditioning (TC) and dietary electrolyte balances (DEB) to minimize the effect of heat stress. A total of 240 Cobb 500 1-d-old male broiler chicks was randomly allocated to 24 floor pens with six replicates per treatment in a 2x2 factorial arrangement (with and without TC and with and without DEB). Dietary treatments consisted: (T1) a traditional diet without TC; (T2) traditional diet with TC; (T3) with the application of dietary electrolyte and without TC and (T4) application of dietary electrolyte with TC. The thermal conditioning was conducted at 5 d of age (36°C for 24 h), only half of the batch (120 birds). After this period, all birds were transferred to boxes of 1.5 x 3m (10 birds / box), with wood shavings reused as litter. Chicks were exposed to chronic heat stress (32°C) for 6 h from 35 to 39 d of age, in all treatments, being electronically monitored the temperature and humidity of the microclimate of the birds. Feed and water were provided ad libitum, even during periods of stress. Were measured performance data (weight gain, feed intake and feed conversion) and mortality rate. Data were subjected to ANOVA using the GLM procedures of SAS. The results of this study demonstrated no interaction effects of all evaluated parameters (performance and mortality). Therefore, no synergism occurred when both strategies (TC and DEB) were applied. Only the first week there was prejudice on broiler performance with the application of the TC and apparently the technique of early age thermal conditioning no improve the resistance of broilers to chronic heat stress. On the other hand, DEB had significantly favorable effects (P<0.05) on performance and minimized mortality immediately after application of the TC.en
dc.description.affiliationUniversidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Faculdade de Medicina Veterinária de Araçatuba (FMVA), Departamento de Apoio, Produção e Saúde Animal, Rua Clóvis Pestana, 793, Jd. Dona Amélia, CEP 16050680, Araçatuba, SP, Brasil
dc.description.affiliationUnespUniversidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Faculdade de Medicina Veterinária de Araçatuba (FMVA), Departamento de Apoio, Produção e Saúde Animal, Rua Clóvis Pestana, 793, Jd. Dona Amélia, CEP 16050680, Araçatuba, SP, Brasil
dc.format.extent263-264
dc.identifierhttp://www.poultryscience.org/psa14/abstracts/234.pdf
dc.identifier.citationPoultry Science, v. 93, n. E-suppl.1, p. 263-264, 2014.
dc.identifier.issn0032-5791
dc.identifier.lattes4930837340907597
dc.identifier.lattes4022227218734910
dc.identifier.lattes7357560220449194
dc.identifier.urihttp://hdl.handle.net/11449/133057
dc.language.isoeng
dc.relation.ispartofPoultry Science
dc.relation.ispartofjcr2.216
dc.relation.ispartofsjr1,112
dc.rights.accessRightsAcesso restrito
dc.sourceCurrículo Lattes
dc.subjectChronic heat stressen
dc.subjectCation-anion balanceen
dc.subjectDietary cation-anionen
dc.subjectElectrolyte dieten
dc.subjectThermal conditioningen
dc.titleStrategies to minimize heat stress in broilers chickensen
dc.title.alternativeStrategies to minimize heat stress in broilers chickensen
dc.typeArtigo
unesp.author.lattes4930837340907597
unesp.author.lattes4022227218734910
unesp.author.lattes7357560220449194
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Medicina Veterinária, Araçatubapt
unesp.departmentApoio, Produção e Saúde Animalpt

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