Effect of dietary selenium sources on growth performance, breast muscle selenium, glutathione peroxidase activity and oxidative stability in broilers

G. Dlouhá, S. Ševčíková, A. Dokoupilová, L. Zita, J. Heindl and M. Skřivan
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G. Dlouhá: Institute of Animal Science, Prague-Uhříněves, Czech Republic
S. Ševčíková: Institute of Animal Science, Prague-Uhříněves, Czech Republic
A. Dokoupilová: Institute of Animal Science, Prague-Uhříněves, Czech Republic
L. Zita: Czech University of Agriculture, Prague, Czech Republic
J. Heindl: Institute of Animal Science, Prague-Uhříněves, Czech Republic
M. Skřivan: Institute of Animal Science, Prague-Uhříněves, Czech Republic

Czech Journal of Animal Science, 2008, vol. 53, issue 6, 265-269

Abstract: This study examined the effects of supplementation of dietary sodium selenite and sodium enriched alga Chlorella on growth performance, selenium concentration in breast meat and excreta, activity of glutathione peroxidase in meat, and oxidative stability of meat in broilers. Sexed broiler cockerels Ross 308 were allotted to 3 dietary treatments, each comprising 100 chickens. The basal diet was supplemented with 0 (control) or 0.3 mg/kg Se from sodium selenite (SS) or Se-Chlorella (SCH). Dietary supplementation with SCH increased (P < 0.05) body weight. The breast muscle Se concentration was increased (P < 0.05) by SCH (0.70 mg/kg DM; 0.36 mg/kg DM in control) supplementation, but not (P > 0.05) by SS (0.49 mg/kg DM) supplementation. The concentration of Se in excreta was highest in the SS group. The activity of GSH-Px in breast meat was significant P < 0.05) in all treatments (0.16 U/g in control, 0.30 U/g in SS and 0.23 U/g in SCH group). The inclusion of SCH in the diet enhanced the oxidative stability of meat expressed as reduced malondialdehyde (MDA) values in breast meat after 0; 3 and 5 days storage in refrigerator at 3 to 5°C.

Keywords: broilers; selenium; alga Chlorella; glutathione peroxidase; lipid oxidation (search for similar items in EconPapers)
Date: 2008
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlcjs:v:53:y:2008:i:6:id:361-cjas

DOI: 10.17221/361-CJAS

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