Metabolizable energy and oil intake in brown commercial layers

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dc.contributor.authorSilva, Amadeu Benedito Piozzi da [UNESP]
dc.contributor.authorGarcia, Edivaldo Antonio [UNESP]
dc.contributor.authorMolino, Andréa de Britto [UNESP]
dc.contributor.authorSilva, Elyara Maria Pereira da
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2013-09-30T18:28:24Z
dc.date.accessioned2014-05-20T13:41:36Z
dc.date.available2013-09-30T18:28:24Z
dc.date.available2014-05-20T13:41:36Z
dc.date.issued2012-10-01
dc.description.abstractWith the objective to establish the best metabolizable energy (ME) intake for layers, and the best dietary vegetable oil addition level to optimize egg production, an experiment was carried out with 432 30-week-old Hisex Brown layers. Birds were distributed into nine treatments with six replicates of eight birds each according to a 3 × 3 factorial arrangement, consisting of three daily metabolizable energy intake (280, 300 or 320 kcal/bird/day) and three oil levels (0.00; 0.75 and 1.50 g/bird/day). Daily feed intake was limited to 115, 110 and 105 g/bird in order to obtain the desired energy and oil intake in each treatment. The following parameters were evaluated: initial weight, final weight, body weight change, egg production, egg mass, feed conversion ratio per dozen eggs and per egg mass and energy conversion. There was no influence of the treatments on egg production (%) or egg mass (g/bird/day). Final weight and body weight change were significantly affected by increasing energy intake. Feed conversion ratio per egg mass, feed conversion ratio per dozen eggs and energy conversion significantly worsened as a function of the increase in daily energy intake. An energy intake of 280 kcal/bird/day with no addition of dietary oil does not affect layer performance.en
dc.description.affiliationUNESP FMVZ Departamento de Produção Animal
dc.description.affiliationUNESP FMVZ
dc.description.affiliationUSP FZEA Departamento de Fisiologia
dc.description.affiliationUnespUNESP FMVZ Departamento de Produção Animal
dc.description.affiliationUnespUNESP FMVZ
dc.format.extent2232-2237
dc.identifierhttp://dx.doi.org/10.1590/S1516-35982012001000014
dc.identifier.citationRevista Brasileira de Zootecnia. Sociedade Brasileira de Zootecnia, v. 41, n. 10, p. 2232-2237, 2012.
dc.identifier.doi10.1590/S1516-35982012001000014
dc.identifier.fileS1516-35982012001000014.pdf
dc.identifier.issn1516-3598
dc.identifier.lattes6743591347106727
dc.identifier.scieloS1516-35982012001000014
dc.identifier.urihttp://hdl.handle.net/11449/14410
dc.identifier.wosWOS:000311563100014
dc.language.isoeng
dc.publisherSociedade Brasileira de Zootecnia
dc.relation.ispartofRevista Brasileira de Zootecnia
dc.relation.ispartofsjr0,337
dc.rights.accessRightsAcesso aberto
dc.sourceSciELO
dc.subjectbody weight changeen
dc.subjectegg productionen
dc.subjectlay percentageen
dc.subjectlayer nutritionen
dc.titleMetabolizable energy and oil intake in brown commercial layersen
dc.typeArtigo
dcterms.licensehttp://www.scielo.br/revistas/rbz/paboutj.htm
unesp.author.lattes6743591347106727
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Medicina Veterinária e Zootecnia, Botucatupt

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Artigos - Produção Animal - FMVZ