Balanços nutricionais e excreção de nutrientes para frangos alimentados com dietas contendo fitase do 14º ao 24º dias de idade
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2014-06
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Resumo
Theobjective of thisstudywas to evaluatethe
effect ofreducedcalcium, phosphorus, energy
andamino aciddietsupplemented withphytase
forbroilersin the growth phase(14 to28 days)on the
ofnitrogen, calciumand phosphorus balance. We
distributed392male broilersofCobb, in a
completely randomizedin a factorial3 x2 +
1Reduced levelofCaandP; Reduced levels ofamino
acidsand energylevelsreducedCa, P, andamino
acids x with and withoutenzyme+positive control),
seven treatmentswitheight replicatesof sevenchicks
each. In the diets with phytasewas used 500 FTU
of phytase/ kg diet.Data weresubmitted to
varianceanalysisandaverages werecomparedby
theF test fororthogonal contrasts. Through the
results can be seen that the enzyme phytase used
thus of 21,34% reduction in calcium excretion
end apparent retention ratio of calcium to
20,16%. Similarly, reductions of nitrogen
excretion by 7,56% and phosphorus excretion
by 21,34%, the environmental impact reducing
caused by the excretion of these nutrientes of
these nutrientes and increasing the apparent
retention ratio of 9,41 and 33,94% in average,
respectively.
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Enzimas, Excreção, Metabolismo, Enzymes, Excretion, Metabolism
Citação
SOUSA, Joana Patrícia Lira de; ALBINO, Luiz Fernando Teixeira; VAZ; Roberta Gomes Marçal Vieira; RODRIGUES, Kênia Ferreira; STRINGHINI, José Henrique; KNOPP, Rodrigo Messias; KANEKO, Isabelle Naemi; KREUZ, Bruna Strieder. Balanços nutricionais e excreção de nutrientes para frangos alimentados com dietas contendo fitase do 14º ao 24º dias de idade. Revista Brasileira de Saúde e Produção Animal, Salvador, v. 15, n. 2, p. 493-503, abr./jun. 2014.