Effect of protein, carbohydrate, lipid, and selenium levels on the performance, carcass yield, and blood changes in broilers

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dc.contributor.authorHada, Fh [UNESP]
dc.contributor.authorMalheiros, Rd
dc.contributor.authorSilva, Jdt
dc.contributor.authorMarques, Rh [UNESP]
dc.contributor.authorGravena, Ra [UNESP]
dc.contributor.authorSilva, Vk [UNESP]
dc.contributor.authorMoraes, Vmb [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionNorth Carolina State University Department of Poultry Science
dc.date.accessioned2014-10-01T13:08:49Z
dc.date.available2014-10-01T13:08:49Z
dc.date.issued2013-12-01
dc.description.abstractThe objective of this study was to evaluate the performance, carcass and parts yield, and blood changes in broilers fed different protein, carbohydrate, and lipid levels. Birds were fed a commercial diet until seven days of age. On day 8, birds were distributed according to a completely randomized experimental design in a 4 x 2 factorial arrangement (control diet, low protein diet, low carbohydrate diet or low lipid diet vs. supplementation of 0 or 0.3ppm organic selenium) with four replicates of 15 birds each. Broilers fed low protein presented lower body weight, feed intake, and worse feed conversion ratio on day 42, as well as lower carcass and breast yields, higher leg and abdominal fat yields, higher triglyceride and lower uric acid blood levels. Broilers fed the low carbohydrate diets presented low glucose levels on days 14 and 42.Creatine-kinase (CK) levels increased as birds aged. The livability of broilers fed the low protein diets improved and of those fed low carbohydrate diets worsened with dietary selenium addition on days 35 and 42. Selenium supplementation increased glucose levels in 42-d-old broilers. Changes in dietary protein caused more impact on broiler performance compared with carbohydrates and lipids. Changes in macronutrients caused metabolic changes in broilers. Selenium affected broiler livability as measured on days 35 and 42, and glucose blood levels.en
dc.description.affiliationUNESP Faculdade de Ciências Agrárias e Veterinárias de Jaboticabal IDepartamento de Zootecnia
dc.description.affiliationUNESP FCAV
dc.description.affiliationNorth Carolina State University Department of Poultry Science
dc.description.affiliationUnespUNESP Faculdade de Ciências Agrárias e Veterinárias de Jaboticabal IDepartamento de Zootecnia
dc.description.affiliationUnespUNESP FCAV
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.format.extent385-394
dc.identifierhttp://dx.doi.org/10.1590/S1516-635X2013000400014
dc.identifier.citationRevista Brasileira de Ciência Avícola. Fundação APINCO de Ciência e Tecnologia Avícolas, v. 15, n. 4, p. 385-394, 2013.
dc.identifier.doi10.1590/S1516-635X2013000400014
dc.identifier.fileS1516-635X2013000400014.pdf
dc.identifier.issn1516-635X
dc.identifier.scieloS1516-635X2013000400014
dc.identifier.urihttp://hdl.handle.net/11449/110103
dc.identifier.wosWOS:000330032300014
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.subjectCarbohydratesen
dc.subjectLipidsen
dc.subjectBlood parametersen
dc.subjectProteinen
dc.subjectseleniumen
dc.titleEffect of protein, carbohydrate, lipid, and selenium levels on the performance, carcass yield, and blood changes in broilersen
dc.typeArtigo
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt

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