2011
DOI: 10.1590/s1413-70542011005000003
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Nitrogen, calcium and phosphorus balance of broilers fed diets with phytase and crystalline amino acids

Abstract: The objective of this study was to evaluate the effect of reduced-crude protein (CP) and available phosphorus (aP) diets, added with phytase and amino acids for broilers in the growing (14 to 21 days old) and retirement (35 to 42 days) phases on nitrogen, potassium and phosphorus balance. Ninety Cobb broilers were distributed in a completely randomized design with three treatments and six replications with five and three birds per experimental unit in the growing and retirement phases, respectively. Diets were… Show more

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Cited by 14 publications
(18 citation statements)
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“…agrotec., Lavras, v. 36, n. 1, p. 100-107, jan./fev., 2012 An efficient way to reduce the N excretion is to reduce its intake, thus, the dietary crude protein is decreased followed by the addition of synthetic amino acids (CORZO et al, 2005;GOMIDE et al, 2011). In order to decrease the excretion of P it is necessary to reduce the level of phosphate in the diet and increase the efficiency utilization of the dietary P by the broilers.…”
mentioning
confidence: 99%
“…agrotec., Lavras, v. 36, n. 1, p. 100-107, jan./fev., 2012 An efficient way to reduce the N excretion is to reduce its intake, thus, the dietary crude protein is decreased followed by the addition of synthetic amino acids (CORZO et al, 2005;GOMIDE et al, 2011). In order to decrease the excretion of P it is necessary to reduce the level of phosphate in the diet and increase the efficiency utilization of the dietary P by the broilers.…”
mentioning
confidence: 99%
“…Estes resultados estão de acordo com os encontrados por Silva et al (2008) e Gomide et al (2011), que também observaram redução no consumo e na excreção de fósforo quando as rações são formuladas com menores níveis de fósforo disponível e suplementadas com fitase.…”
Section: Resultsunclassified
“…Os resultados estão em consonância também com os relatos de Wu et al (2006) e Plumstead et al (2007 de que a suplementação das dietas com fitase permite reduzir os níveis de fósforo total das dietas, aumenta o fósforo retido e reduz sua excreção para o meio ambiente. Diversos pesquisadores relataram em seus estudos o efeito da fitase aumentando a disponibilidade do fósforo fítico de ingredientes vegetais para aves (Lan et al, 2002;Gomide et al, 2011).…”
Section: Resultsunclassified
“…Autores descreveram ainda, a redução na excreção de nitrogênio, cálcio, fósforo, energia e de proteína, com uso de fitase (Gomide et al, 2011a;Gomide et al, 2011b;Vasconcellos et al, 2011). Dessa forma, nota-se que a suplementação dessa enzima possibilita a redução do uso de aminoácidos essenciais como lisina, metionina e treonina (Sousa, 2013), fósforo inorgânico e energia, nas dietas, contribuindo para minimizar a poluição ambiental (Lima et al, 2007).…”
Section: Muitas Espécies De Bactérias Fungos E Leveduras Produzem Aunclassified