Níveis de arginina e lisina digestíveis na dieta de frangos de corte na fase pré-inicial
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Data
2007
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Resumo
The performance, digestibility and retention of nutrients and the development of digestive organs of broiler chicks
in pre-starter diet (1 to 7 days old) fed diets with different levels of digestible lysine and arginine. A total of 352 day old AgRoss male
chicks was allotted to 2 x 3 factorial arrangement (level of digestible lysine [1.056 and 1.305%] and levels of digestible arginine [1.305,
1.459 and 1.613%] and four replicates of 11 chicks. Daily weight gain was not affected by diets but there was a quadratic effect of
arginine levels on feed:gain ratio from 1 to 7 and from 1 to 21 days old and linear effect on feed intake from 1 to 21 days old. As
for organs development, it was observed a reduction for the relative weight of proventriculus + gizzard as arginine level increased for
the 1.305% digestible lysine level at 14 days of age The digestibility coefficients of nutrients and retention of DM and d N values
were better for the low digestible lysine levels. The levels from 1.40 to 1.46 of digestible arginine could be used for pre-starter phase
diets of broiler chicks, however as lysine content increase in the diet its relation with arginine should be adjusted.
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Desempenho, Desenvolvimento do trato digestório, Digestibilidade, Nutrição pós-eclosão, Digestibility, Digestive organs development, Nutrition after hatch, Performance
Citação
STRINGHINI, José Henrique; CRUZ, Cícero Peres da; THON, Mônica Schaitl; ANDRADE, Maria Auxiliadora; LEANDRO, Nadja Susana Mogyca; CAFÉ, Marcos Barcellos Níveis de arginina e lisina digestíveis na dieta de frangos de corte na fase pré-inicial. Revista Brasileira de Zootecnia, Viçosa, v. 36, n. 4, supl., p. 1083-1089, 2007.