Use este identificador para citar ou linkar para este item: http://repositorio.bc.ufg.br/handle/ri/12738
Tipo do documento: Artigo
Título: Energy and lysine for broilers from 44 to 55 days of age
Autor: Araújo, Lúcio Francelino
Junqueira, Otto Mack
Araújo, Cristiane Soares da Silva
Barbosa, Luís Carlos Garibaldi Simon
Ortolan, Josiane Hernandes
Faria, Douglas Emygdio de
Stringhini, José Henrique
Abstract: An experiment was conducted to evaluate the performance and carcass yield of broilers at 55 days of age fed diets with different levels of metabolizable energy and lysine. Evaluated data of performance were weight gain, feed intake, energy intake, lysine intake, caloric conversion and feed conversion. Carcass assessment was performed based on data from carcass yield, breast weight, whole wings, whole legs, back, head + neck, feet and abdominal fat. A 3 x 3 factorial arrangement was used, with 3 levels of metabolizable energy (3,200; 3,400 and 3,600 kcal ME/kg) and 3 lysine levels (0.95%; 1.05% and 1.15%). There was no interaction between the two factors. Nevertheless, increasing levels of metabolizable energy improved weight gain (745 g; 841 g and 910 g, respectively) and feed intake was higher in broilers receiving the diets with 3,200 and 3,600 kcal ME/kg. Overall performance was not affected by lysine levels. Feed conversion values were 2.69, 2.42 and 2.14 for birds fed diets with 3,200; 3,400 and 3,600 kcal ME/kg, respectively. Carcass yield and breast weight increased with higher levels of energy and lysine in the diets.
Palavras-chave: Broilers
Lysine
Metabolizable energy
Performance
País: Brasil
Unidade acadêmica: Escola de Veterinária e Zootecnia - EVZ (RG)
Citação: ARAÚJO, L. F.; JUNQUEIRA, O. M.; ARAÚJO, C. S. S.; FARIA, D. E.; STRINGHINI, J. H. Energy and lysine for broilers from 44 to 55 days of age. Revista Brasileira de Ciência Avícola, Campinas, v. 7, n. 4, p. 237-241, Oct./Dec. 2005.
Tipo de acesso: Acesso Aberto
Identificador do documento: 10.1590/S1516-635X2005000400007
Identificador do documento: 10.1590/S1516-635X2005000400007
URI: http://repositorio.bc.ufg.br/handle/ri/12738
Data de publicação: Dez-2005
Aparece nas coleções:EVZ - Artigos publicados em periódicos

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