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Registro Completo |
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
11/05/2017 |
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Data da última atualização: |
11/05/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FRANCO, S. M.; TAVERNARI, F. de C.; MAIA, R. C.; BARROS, V. R. S. M.; ALBINO, L. F. T.; ROSTAGNO, H. S.; LELIS, G. R.; CALDERANO, A. A.; DILGER, R. N. |
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Afiliação: |
SEBASTIAN M., Premex S.A.; FERNANDO DE CASTRO TAVERNARI, CNPSA; ROSANA CARDOSO MAIA, UFV; VICTOR R. S. M. BARROS, UFV; LUIZ FERNANDO TEIXEIRA ALBINO, UFV; HORÁCIO SANTIAGO ROSTAGNO, UFV; GUILHERME RODRIGUES LELIS, UFV; ARELE ARLINDO CALDERANO, UFV; RYAN NEIL DILGER, University of Illinois. |
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Título: |
Estimation of optimal ratios of digestible phenylalanine + tyrosine, histidine, and leucine to digestible lysine for performance and breast yield in broilers. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Poultry Science, v. 96, p. 829-837, 2017. |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTRACT Three experiments were carried out to estimate the optimal ratios of digestible phenylalanine + tyrosine (Phe + Tyr), histidine (His), and leucine (Leu) relative to digestible lysine (Lys) for performance and carcass criteria of Cobb-500 broilers from 8 to 17 d of age. In each experiment, 160 male chicks were allocated to a completely randomized experimental design with eight replicate pens, each receiving five dietary treatments. A common, semi-purified basal diet was formulated to meet all dietary recommendations except for those of the tested amino acids (i.e., Phe + Tyr, His, and Leu). Growth performance and carcass characteristics data were analyzed using various requirement-estimation models, including 95% of the quadratic regression, linear response plateau (LRP; i.e., stepwise regression), LRP-to-quadratic regression ratio; and quadratic broken line (QBL). Graded digestible Phe + Tyr ratios elicited a quadratic response (P < 0.05) in body weight gain and linear responses (P < 0.05) in breast and breast fillet weights. Linear effects (P < 0.05) were also observed when graded ratios of digestible His were fed for feed intake and weight gain, and quadratic responses (P < 0.05) were noted for feed conversion ratio and breast and breast fillet weights and yields. Graded Leu ratios elicited quadratic responses (P < 0.05) in feed intake, weight gain, and breast and breast fillet weight and yield. Based on growth and carcass parameters, the estimated ideal digestible ratios of Phe + Tyr, His, and Leu relative to digestible Lys were 112, 38, and 104%, respectively, for broiler chicks raised from 8 to 17 d of age. MenosABSTRACT Three experiments were carried out to estimate the optimal ratios of digestible phenylalanine + tyrosine (Phe + Tyr), histidine (His), and leucine (Leu) relative to digestible lysine (Lys) for performance and carcass criteria of Cobb-500 broilers from 8 to 17 d of age. In each experiment, 160 male chicks were allocated to a completely randomized experimental design with eight replicate pens, each receiving five dietary treatments. A common, semi-purified basal diet was formulated to meet all dietary recommendations except for those of the tested amino acids (i.e., Phe + Tyr, His, and Leu). Growth performance and carcass characteristics data were analyzed using various requirement-estimation models, including 95% of the quadratic regression, linear response plateau (LRP; i.e., stepwise regression), LRP-to-quadratic regression ratio; and quadratic broken line (QBL). Graded digestible Phe + Tyr ratios elicited a quadratic response (P < 0.05) in body weight gain and linear responses (P < 0.05) in breast and breast fillet weights. Linear effects (P < 0.05) were also observed when graded ratios of digestible His were fed for feed intake and weight gain, and quadratic responses (P < 0.05) were noted for feed conversion ratio and breast and breast fillet weights and yields. Graded Leu ratios elicited quadratic responses (P < 0.05) in feed intake, weight gain, and breast and breast fillet weight and yield. Based on growth and carcass parameters, the estimated ideal digestibl... Mostrar Tudo |
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Palavras-Chave: |
Digestible amino acid; Peito de frango. |
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Thesagro: |
Aminoácido; Digestibilidade; Enzima; Frango de corte; Nutrição animal; Sistema de produção. |
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Thesaurus Nal: |
Animal nutrition; Breast meat; Broiler chickens; Digestibility; Histidine; Leucine; phenylalanine; Poultry production; tyrosine. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02882naa a2200421 a 4500
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100 1 $aFRANCO, S. M.
245 $aEstimation of optimal ratios of digestible phenylalanine + tyrosine, histidine, and leucine to digestible lysine for performance and breast yield in broilers.$h[electronic resource]
260 $c2017
520 $aABSTRACT Three experiments were carried out to estimate the optimal ratios of digestible phenylalanine + tyrosine (Phe + Tyr), histidine (His), and leucine (Leu) relative to digestible lysine (Lys) for performance and carcass criteria of Cobb-500 broilers from 8 to 17 d of age. In each experiment, 160 male chicks were allocated to a completely randomized experimental design with eight replicate pens, each receiving five dietary treatments. A common, semi-purified basal diet was formulated to meet all dietary recommendations except for those of the tested amino acids (i.e., Phe + Tyr, His, and Leu). Growth performance and carcass characteristics data were analyzed using various requirement-estimation models, including 95% of the quadratic regression, linear response plateau (LRP; i.e., stepwise regression), LRP-to-quadratic regression ratio; and quadratic broken line (QBL). Graded digestible Phe + Tyr ratios elicited a quadratic response (P < 0.05) in body weight gain and linear responses (P < 0.05) in breast and breast fillet weights. Linear effects (P < 0.05) were also observed when graded ratios of digestible His were fed for feed intake and weight gain, and quadratic responses (P < 0.05) were noted for feed conversion ratio and breast and breast fillet weights and yields. Graded Leu ratios elicited quadratic responses (P < 0.05) in feed intake, weight gain, and breast and breast fillet weight and yield. Based on growth and carcass parameters, the estimated ideal digestible ratios of Phe + Tyr, His, and Leu relative to digestible Lys were 112, 38, and 104%, respectively, for broiler chicks raised from 8 to 17 d of age.
650 $aAnimal nutrition
650 $aBreast meat
650 $aBroiler chickens
650 $aDigestibility
650 $aHistidine
650 $aLeucine
650 $aphenylalanine
650 $aPoultry production
650 $atyrosine
650 $aAminoácido
650 $aDigestibilidade
650 $aEnzima
650 $aFrango de corte
650 $aNutrição animal
650 $aSistema de produção
653 $aDigestible amino acid
653 $aPeito de frango
700 1 $aTAVERNARI, F. de C.
700 1 $aMAIA, R. C.
700 1 $aBARROS, V. R. S. M.
700 1 $aALBINO, L. F. T.
700 1 $aROSTAGNO, H. S.
700 1 $aLELIS, G. R.
700 1 $aCALDERANO, A. A.
700 1 $aDILGER, R. N.
773 $tPoultry Science$gv. 96, p. 829-837, 2017.
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Embrapa Suínos e Aves (CNPSA) |
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