Effect of different electrolyte balances in broiler diets
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Data
2013-09
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Resumo
The aim of this study was to evaluate the performance, tibial density
and mineral content, Na, K ,and Cl serum levels, and dry matter content
of the litter of broilers fed diets with different levels of dietary electrolyte
balances. Two experiments were carried out: during the starter phase (7
to 21 days of age, 960 broilers) and during the growe phase (22 to 38
days of age, 816 broilers). In both experiments, a completely randomized
design with four treatments based on dietary electrolyte balance values
(200, 240, 280 and 320 mEq/kg of diet) with four replicates was
applied. Birds and diets were weighed when birds were seven, 14 and
21 days of age in the first experiment, and 22 and 38 days of age in
the second experiment in order to determine weight gain, feed intake
and feed conversion. Final body weight, weight gain, feed intake and
feed conversion and mortality rate were evaluated. On days 21 and 38,
the left tibia of two birds per replicate was collected to determine bone
density and the serum was used for Na and K analysis. Litter dry matter
content was also determined on days 21 and 38 . There was no effect
of dietary electrolyte balance values on broilers performance between
7 and 14, 7 and 21, or 22 and 38 days of age, tibial bone density and
mineral content, or on Na, K and Cl serum levels. Litter dry matter was
linearly reduced as dietary electrolyte balance value increased. Diets
with 200 mEq/kg may be recommended for broilers from 7 to 38 days
of age with no negative influence on the evaluated parameters.
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Bone density, Performance, Potassium, Poultry litter, Sodium
Citação
ARANTES, U. M.; STRINGHINI, J. H.; OLIVEIRA, M. C.; MARTINS, P. C.; REZENDE, P. M.; ANDRADE, M. A.; LEANDRO, N. S. M.; CAFÉ, M. B. Effect of different electrolyte balances in broiler diets. Revista Brasileira de Ciência Avícola, Campinas, v. 15, n. 3, p. 169-286, July/Sept. 2013.