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dc.contributor.authorMaiorka, Alexpt_BR
dc.contributor.authorDahlke, Fabianopt_BR
dc.contributor.authorSantin, E.pt_BR
dc.contributor.authorKessler, Alexandre de Mellopt_BR
dc.contributor.authorPenz Junior, Antonio Mariopt_BR
dc.date.accessioned2010-04-16T09:12:25Zpt_BR
dc.date.issued2004pt_BR
dc.identifier.issn1516-635Xpt_BR
dc.identifier.urihttp://hdl.handle.net/10183/19966pt_BR
dc.description.abstractThis study was conducted to evaluate the performance and carcass and breast yields of broilers fed two different energy levels (3,200 or 2,900 kcal ME/kg) and two ways of expressing amino acid requirements (total -TAA or digestible - DAA) between 21 and 42 days of age. The results showed that broilers fed the diet containing 3,200 kcal ME/kg had higher weight gain (P=0.015), better feed conversion (P=0.001), and higher abdominal fat deposition (P=0.001) as compared to those fed the diet containing 2,900 kcal ME/kg. Diets formulated on DAA basis promoted higher weight gain (P=0.043), better feed conversion (P=0.010) and better conversion of ME intake into weight gain (P=0.007) as compared to those formulated on TAA basis. The results of this study suggest that formulation based on DAA is necessary if the diets contain protein sources that are not reliable in terms of amino acid digestibility. The response to formulation based on DAA was minimized when birds received the low energy level diet (2,900 kcal ME/kg).en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofRevista brasileira de ciência avícola= Brazilian journal of poultry science. Campinas, SP. Vol. 6, n. 2, (jun. 2004), p. 87-91pt_BR
dc.rightsOpen Accessen
dc.subjectAmino aciden
dc.subjectAviculturapt_BR
dc.subjectNutricao animalpt_BR
dc.subjectBroilersen
dc.subjectDietapt_BR
dc.subjectEenergyen
dc.titleEffect of energy levels of diets formulated on total or digestible amino acid basis on broiler performancept_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000481363pt_BR
dc.type.originNacionalpt_BR


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