Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/12764
Título : Evaluation of cysteamine associated with different energy patterns in diets for broiler chickens
Autor: Nunes, Jaqueline Oliveira
Bertechini, Antonio Gilberto
Brito, Jerônimo Ávito Gonçalves de
Makiyama, Letícia
Mesquita, Fabrício Rivelli
Nishio, Carina Megumi
Palavras-chave: Poultry meat production
Poultry - Nutrition
Produção de carne de aves
Galinha - Nutrição
Publicador: Sociedade Brasileira de Zootecnia
Data da publicação: Ago-2012
Referência: NUNES, J. O. et al. Evaluation of cysteamine associated with different energy patterns in diets for broiler chickens. Revista Brasileira de Zootecnia, Viçosa, MG, v. 41, n. 8, p.1956-1960, Aug. 2012.
Abstract: This experiment was conducted with the objective of evaluating cysteamine (CS) supplementation in broiler chick diets with different energy density patterns. A total of 980 chicks of the Cobb 500 strain at one day of age were allocated into 28 plots. A completely randomized design in a 2 × 2 factorial arrangement, with 7 replications, was adopted. The factors under study were the supplementation (or absence) of cysteamine (60 mg/kg and 80 mg/kg of feed in the starter and growth/finishing phases, respectively) and two patterns of apparent metabolizable energy corrected by nitrogen balance (AMEn) in the diets. The energy levels (Mcal/kg of feed) practiced in pattern 1 were 3.00; 3.10; and 3.20, and for pattern 2, they were 3.05; 3.20; and 3.30 in the starter, growth and finishing phases, respectively. The diets were on the basis of corn and soybean meal with a feeding program with three diets. Feed intake, weight gain, feed conversion, feasibility and carcass yield were evaluated. There was no interaction between the CS supplementation and AME patterns in the diet upon the performance and/or carcass characteristic evaluated. Broilers fed the diet supplemented with CS presented improved feed conversion along the rearing cycle, but feed intake and weight gain were not affected by the supplementation of CS. The highest pattern of energy density (2) provided increased weigh gain in the starter phase of rearing and better feed conversion of the birds over the whole rearing period. The carcass yield was not influenced by the cysteamine supplementation and/or energy levels studied.
URI: http://repositorio.ufla.br/jspui/handle/1/12764
Idioma: en_US
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