Dietary incorporation of feedstuffs naturally high in organic selenium for racing pigeons (Columba livia): effects on plasma antioxidant markers after a standardised simulation of a flying effort
| Autor: | Joël Pincemail, Nicolas Schoonheere, Jean-Luc Hornick, Olivier Dotreppe, Louis Istasse |
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| Rok vydání: | 2009 |
| Předmět: |
Antioxidant
medicine.medical_treatment chemistry.chemical_element Biology medicine.disease_cause Antioxidants Selenium chemistry.chemical_compound Food Animals medicine Animals Food science Animal nutrition Columbidae chemistry.chemical_classification Reactive oxygen species Glutathione peroxidase food and beverages Glutathione Animal Feed Diet chemistry Biochemistry Flight Animal biology.protein Animal Nutritional Physiological Phenomena Animal Science and Zoology Energy Metabolism Biomarkers Oxidative stress Peroxidase |
| Zdroj: | Journal of Animal Physiology and Animal Nutrition. 93:325-330 |
| ISSN: | 1439-0396 0931-2439 |
| DOI: | 10.1111/j.1439-0396.2008.00879.x |
| Popis: | Selenium is a trace element of importance for animal health. It is essential for adequate functioning of many enzymes such as, the antioxidant enzyme, glutathione peroxidase, which protects the cell against free radicals. A muscular effort induces a rise in reactive oxygen species production which, in turn, can generate an oxidative stress. Two groups of eight racing pigeons were fed respectively with a diet containing 30.3 (control group) and 195.3 (selenium group) microg selenium/kg diet. The pigeons were submitted to a standardised simulation of a flying effort during 2 h. Blood was taken before and after the effort to measure antioxidant markers and blood parameters related to muscle metabolism. Plasma selenium concentration and glutathione peroxidase activity were significantly higher in the selenium group. There were no significant differences for the other measured parameters. As a consequence of the effort, the pigeons of the selenium group showed a higher increase of glutathione peroxidase activity and a smaller increase of plasma lactate concentration. Variations because of the effort in the other markers were not significantly different between the two groups. It is concluded that the selenium status was improved with the feeding of feedstuffs high in Selenium. |
| Databáze: | OpenAIRE |
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