Available phosphorus in diets with or without ractopamine for late finishing gilts

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dc.contributor.authorCampos, Priscila Furtado
dc.contributor.authorSilva, Francisco Carlos de Oliveira
dc.contributor.authorFerreira, Aloízio Soares
dc.contributor.authorOliveira, Rita Flávia Miranda de
dc.contributor.authorDonzele, Juarez Lopes
dc.contributor.authorGirotto Júnior, Celso José
dc.contributor.authorPereira, Cinthia Maria Carlos
dc.contributor.authorSaraiva, Alysson [UFVJM]
dc.contributor.institutionUniversidade Federal de Viçosa (UFV)
dc.contributor.institutionUniversidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM)
dc.date.accessioned2017-03-06T18:31:20Z
dc.date.available2017-03-06T18:31:20Z
dc.date.issued2012-03-01
dc.description.abstractsWith the objective to evaluate levels of available phosphorus (aP) in diets with or without ractopamine, 112 gilts with high genetic potential for meat deposition with initial weigh of 94.0±2.28 kg were allotted in a completely randomized block design, in a 4 × 2 factorial arrangement (0.109, 0.209, 0.309, and 0.409% aP and 0 or 5 ppm of ractopamine), with eight treatments, seven replicates, and two gilts per experimental unit. There were no interactions between aP levels and ractopamine. The levels of available phosphorus influenced both daily weight gain and daily phosphorus intake, which increased linearly. Feed conversion improved in a quadratic way up to the estimated level of 0.330% aP maximum response. Daily weight gain increased and feed conversion improved by adding ractopamine to the diets. Serum alkaline phosphatase activity decreased linearly by increasing the levels of available phosphorus. Bone strength, ash, calcium, and phosphorus contents in the bones also increased quadratically with maximum responses at 0.320, 0.270, 0.277, and 0.295% aP, respectively. The available phosphorus level of 0.330%, corresponding to a daily intake of 8.67 g of aP is suitable for 94 to 125 kg gilts selected for meat deposition fed diets with or without ractopamine.en
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)
dc.description.sponsorshipEmpresa de Pesquisa Agropecuária de Minas Gerais (EPAMIG)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.identifierhttp://dx.doi.org/10.1590/S1516-35982012000300023
dc.identifier.citationCAMPOS, Priscila Furtado et al. Available phosphorus in diets with or without ractopamine for late finishing gilts. Revista Brasileira de Zootecnia, Viçosa, v. 41, n. 3, p. 630-635, 2012.
dc.identifier.doi10.1590/S1516-35982012000300023
dc.identifier.issn1516-3598
dc.identifier.scieloS1516-35982012000300023
dc.identifier.urihttps://acervo.ufvjm.edu.br/items/be3bff51-1a0b-4393-97d1-b75c041c6cbe
dc.language.isoeng
dc.publisherSociedade Brasileira de Zootecnia
dc.relation.ispartofRevista Brasileira de Zootecnia
dc.rights.accessRightsAcesso aberto
dc.sourceSciELO
dc.subject.keywordBeta agonisten
dc.subject.keywordCarcassen
dc.subject.keywordIdeal proteinen
dc.subject.keywordMineralsen
dc.subject.keywordPerformanceen
dc.titleAvailable phosphorus in diets with or without ractopamine for late finishing giltsen
dc.typeArtigopt_BR

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