Macro mineral requirements by grazing zebu bovines

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dc.contributor.authorMoraes, Eduardo Henrique Bevitori Kling de
dc.contributor.authorPaulino, Mário Fonseca
dc.contributor.authorMoraes, Kamila Andreatta Kling de
dc.contributor.authorValadares Filho, Sebastião de Campos
dc.contributor.authorLazzarini, Isis
dc.contributor.authorMonnerat, João Paulo Ismério dos Santos
dc.contributor.authorCouto, Victor Rezende Moreira
dc.contributor.authorSouza, Marcos Gonçalves de [UNESP]
dc.contributor.institutionUniversidade Federal de Mato Grosso (UFMT)
dc.contributor.institutionUniversidade Federal de Viçosa (UFV)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:18:22Z
dc.date.available2014-05-20T15:18:22Z
dc.date.issued2012-02-01
dc.description.abstractThe objective of this study was to determine requirements of calcium (Ca), phosphorus (P), magnesium (Mg), potassium (K) and sodium (Na) for grazing zebu bovines. The experiment area was composed of Brachiaria decumbens paddocks. Twenty-seven non-castrated animals, with initial live weight of 311.0 kg and at an average age of 14 months were used. Three animals were slaughtered, after adaptation period, so they were used as control for estimates of empty body weight and initial body composition of animals in the experiment. Out of the 24 remaining animals, four were sent to the maintenance group with restrict grazing time to limit energy intake close to the maintenance level. The other 20 animals were distributed in four treatments: mineral mixture, self-control intake and three-times-a-week-offer frequency (offered on Mondays, Wednesdays and Fridays) and daily. Concentrations of all studied macro elements in empty body and empty body gain decreased as live weight increased. The ratios obtained for g Ca/100 g of retained protein and g P/100 g of retained protein were 9.18 and 4.72, respectively. Total dietary requirement of calcium was lower than the one recommended by NRC (2000), but P requirement was very close to that.en
dc.description.affiliationUFMT ICAA
dc.description.affiliationUFV DZO
dc.description.affiliationUNESP
dc.description.affiliationUnespUNESP
dc.format.extent392-397
dc.identifierhttp://dx.doi.org/10.1590/S1516-35982012000200023
dc.identifier.citationRevista Brasileira de Zootecnia. Sociedade Brasileira de Zootecnia, v. 41, n. 2, p. 392-397, 2012.
dc.identifier.doi10.1590/S1516-35982012000200023
dc.identifier.fileS1516-35982012000200023.pdf
dc.identifier.issn1516-3598
dc.identifier.scieloS1516-35982012000200023
dc.identifier.urihttp://hdl.handle.net/11449/30864
dc.identifier.wosWOS:000302012700023
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.subjectmacro mineralsen
dc.subjectpastureen
dc.subjectrequirementen
dc.subjectzebu cattleen
dc.titleMacro mineral requirements by grazing zebu bovinesen
dc.typeArtigo
dcterms.licensehttp://www.scielo.br/revistas/rbz/paboutj.htm

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