Desempenho de frangos de corte alimentados com rações pré-iniciais contendo diferentes níveis de proteína bruta e energia metabolizável
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Data
2003
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Resumo
This experiment was carried out in order to evaluate performance, nitrogen and dry matter balance and
morfometrical measures of broilers raised with different levels of protein and energy on pre-starter phase (1 to 7 days of age). In a
completely randomized design, 336 one-day old chicks were allotted in a completely randomized design in a factorial scheme 2 x 3
(metabolizable energy 2,850 and 3,000 kcal/kg and crude protein – 20, 23 and 26%) with four replicates with 14 birds each. The
digestibility trial occurred in the first week, and the total excreta collection method was used from 4 to 7 days of age. The results
indicated that feed intake and feed conversion from 1 to 7 days, and feed intake from 1 to 21 days, showing that the 23% and 26%
CP gave the best results for pre-starter phase in this experiment. The metabolizable energy levels did not affect the performance neither
nutritional balances of dry matter and nitrogen.
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Palavras-chave
Desempenho, Frango de corte, Programa alimentar, Ração pré-inicial, Broiler, Feeding program, Pre-starter ration, Performance
Citação
ROCHA, Patrícia Tironi; STRINGHINI, José Henrique; ANDRADE, Maria Auxiliadora; LEANDRO, Nadja Susana Mogyca; ANDRADE, Michelle Lobo; CAFÉ, Marcos Barcellos. Desempenho de frangos de corte alimentados com rações pré-iniciais contendo diferentes níveis de proteína bruta e energia metabolizável. Revista Brasileira de Zootecnia, Viçosa, v. 32, n. 1, p. 162-170, 2003.