Effects of selenomethionine and sodium selenite supplementation on meat quality, selenium distribution and antioxidant status in broilers
| Autor: | X. A. Zhan, X. W. Zhang, D. Yuan, R. J. Wu, Yongxia Wang |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
0301 basic medicine
medicine.medical_specialty Antioxidant medicine.medical_treatment chemistry.chemical_element Biology Superoxide dismutase 03 medical and health sciences chemistry.chemical_compound Internal medicine medicine chemistry.chemical_classification Glutathione peroxidase 0402 animal and dairy science 04 agricultural and veterinary sciences Glutathione Malondialdehyde 040201 dairy & animal science Enzyme assay 030104 developmental biology Endocrinology chemistry Blood chemistry biology.protein Animal Science and Zoology Selenium |
| Zdroj: | Czech Journal of Animal Science. 56:305-313 |
| ISSN: | 1805-9309 1212-1819 |
| DOI: | 10.17221/1296-cjas |
| Popis: | This study was conducted to investigate the effects of selenomethionine (Se-Met) and sodium selenite (SS) supplementation on meat quality, selenium (Se) distribution, and antioxidant status in broil - ers. A total of 360 seven-days-old Ross 308 broilers of an average body weight 162 ± 0.59 g were randomly allotted to three treatments, each of which included three replications of 40 birds. The treatments included a control diet containing 0.04 mg Se/kg and other two diets that contained 0.15 mg Se/kg supplemented by SS or Se-Met. The experiment lasted for 42 days. Selenium supplementation improved ( P < 0.05) the Hunter a value of breast muscle in 8 and 16 h and decreased ( P < 0.05) the drip loss of breast muscle in 24 and 48 Both Se sources and exposed time significantly influenced ( P < 0.01) the drip loss of breast muscle. Selenium and glutathione concentrations in serum and in the studied organs were significantly higher ( P < 0.05) after dietary Se supplementation while the Se-Met group showed the highest value ( P < 0.05). Glutathione per - oxidase activity in serum and in the studied organs was also significantly elevated ( P < 0.05) by dietary Se supplementation while SS increased the glutathione peroxidase activities in pancreas and breast muscle to a larger extent ( P < 0.05) than did Se-Met. The addition of Se from either source caused a significant increase (P < 0.05) in superoxide dismutase activities in tissues (except for kidney) whereas the Se-Met group was more effective (P < 0.05) than the SS group in breast muscle. Selenium supplementation increased ( P < 0.05) the total antioxidant capability in serum, liver, kidney and breast muscle while the Se-Met group proved to be more effective (P < 0.05) than the SS group except for kidney. The Se-supplemented diets had a lower (P < 0.05) malondialdehyde concentration in serum and in the studied organs but the effect was more pro - nounced ( P < 0.05) when Se-Met was used except for the serum. These results indicated that Se-Met sup - plementation was more effective than SS supplementation for depositing Se in serum and tissues, enhancing the antioxidant status and reducing the drip loss of breast muscle. |
| Databáze: | OpenAIRE |
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