Qualidade de ovos, parâmetros bioquímicos sanguíneos e desenvolvimento do aparelho reprodutor de poedeiras comerciais Lohmann LSL alimentadas com níveis crescentes de lisina digestível
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Data
2008
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Resumo
In this experiment, the effect of lysine levels on egg quality, biochemical parameters and
measurements of the reproductive tract on the diets of Lohmann LSL laying hens diets were
evaluated. One hundred-sixty hens with 24 weeks of age were submitted to increasing
levels of digestible lysine (600, 700, 800 e 900 mg Lys kg-1 of feed) until 48 weeks of age.
The diets were isoenergetic and isonutritive. A completely randomized design was used,
with four treatments and four replicates. Percentages of eggshell, yolk and albumen, specific
egg gravity, yolk index, total yolk, albumen and egg solids, blood parameters and
measurements of the reproductive tract were evaluated. The data were submitted to
polynomial regression (5%) analysis using the SAS statistical software, while for blood
biochemical parameters and reproductive tract measurements, the samples were analyzed
using a split-spot scheme. No significant differences were found regarding egg quality.
There was an increase in reproductive tract weight with age. The blood parameters were
not influenced by the treatments; however, albumin, uric acid and creatinin increased for
older hens. Increasing the levels of digestible lysine did not influence internal egg quality,
blood parameters or the reproductive tract. The level of 600 mg kg-1 can be recommended
for internal egg quality and development of the reproductive tract.
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Aminoácido, Casca, Oviduto, Sangue, Unidade haugh, Amino acid, Eggshell, Blood, Oviduct, Haugh unit
Citação
JARDIM FILHO, Roberto de Moraes; STRINGHINI, José Henrique; ANDRADE, Maria Auxiliadora; NUNES, Anúzia Barini; LEANDRO, Nadja Susana Mogyca; CAFÉ, Marcos Barcellos. Qualidade de ovos, parâmetros bioquímicos e desenvolvimento do aparelho reprodutor de poedeiras comerciais Lohmann LSL alimentadas com níveis crescentes de lisina digestível. Acta Scientiarum. Animal Sciences, Maringá, v. 30, n. 1, p. 25-31, 2008.