Influência do peso inicial de pintos de corte sobre o desempenho e o rendimento de carcaça de frangos e a viabilidade econômica da produção
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Data
2006
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Resumo
The objective of this study was to evaluate the effect of body weight (BW) of 1-d chicks on performance,
yields of carcass and prime cuts and economic viability. One thousand, nine hundred and eight-four AGRoss 308 chicks (males
and females) with different initial BW (32, 35, 40 and 49 g) were allotted to a randomized block design with a 2 x 4 (two sexes
and four initial BW) factorial arrangement with eight treatments, four replicates and 62 birds per experimental per plot. Data
were submitted to variance analyses and the means, compared by Tukey test (5%). No significant sex ´ chick initial BW interaction
was observed. Males showed better performance than females in all treatments and periods. Treatment effect on body weight,
weight gain and feed intake was noticed in all periods. It was also observed treatment effect on productive efficiency index (the
heaviest chicks showed the best performance results at 47 days of age), but there was no effect on yields of carcass and prime
cuts. Regarding the economic viability, the heavier chicks showed the best results.
Descrição
Palavras-chave
Frango de corte, Desempenho, Peso inicial, Rendimento de carcaça, Carcass yield, Initial weight, Performance
Citação
LEANDRO, Nadja Susana Mogyca; CUNHA, Weliton Carlos Pereira; STRINGHINI, José Henrique; CRUZ, Cícero Peres da; CAFÉ, Marcos Barcelos; MATOS, Maíra Silva. Influência do peso inicial de pintos de corte sobre o desempenho e o rendimento de carcaça de frangos e a viabilidade econômica da produção. Revista Brasileira de Zootecnia, Viçosa, v. 35, n. 6, p. 2314-2321, 2006.