Department of Animal Science, Faculty of Agriculture, Ege University, 35100 Bornova, Izmir, Turkey.
J Sci Food Agric. 2011 May;91(7):1277-82. doi: 10.1002/jsfa.4311. Epub 2011 Feb 18.
The experiment was conducted to determine the effects of dietary supplementation of oxidised oil with or without vitamin E on performance, nutrient digestibility, some blood traits, lipid peroxidation and antioxidant defence system of male broilers.
The supplementation of oxidised oil with or without vitamin E to the grower diets did not significantly affect performance, the pH and viscosity values of excreta and nutrient digestibilities in male broilers. Oxidised oil supplementation slightly increased plasma triglyceride and cholesterol concentrations but did not alter plasma glucose concentration. Although malondialdehyde (MDA) and nitric oxide concentrations tended to be higher in the oxidised oil group, these increases were not significant. Birds fed the diet containing oxidised oil had significantly lower superoxide dismutase (SOD) activity. However, no differences were observed in glutathione peroxidase (GSH-Px) activity and uric acid concentrations of broilers fed oxidised oil as compared to the control group. Dietary vitamin E supplementation decreased MDA concentration whereas increasing SOD activity, suggesting that vitamin E supplementation reduced susceptibility to lipid peroxidation.
The results showed that a milder oxidative stress occurred by supplementation of moderately oxidised oil to the diet of broilers and vitamin E supplementation had been helpful in alleviating lipid peroxidation.
本实验旨在研究饲粮中添加氧化油及/或维生素 E 对雄性肉鸡生产性能、养分消化率、血液指标、脂质过氧化及抗氧化防御系统的影响。
在生长鸡饲粮中添加氧化油及/或维生素 E 对生产性能、粪便 pH 值和黏度值及养分消化率没有显著影响。氧化油添加组使血浆甘油三酯和胆固醇浓度略有升高，但对血糖浓度没有影响。虽然氧化油组的丙二醛（MDA）和一氧化氮浓度有升高的趋势，但差异不显著。氧化油组超氧化物歧化酶（SOD）活性显著降低，而谷胱甘肽过氧化物酶（GSH-Px）活性和尿酸浓度与对照组相比没有差异。饲粮添加维生素 E 降低了 MDA 浓度，提高了 SOD 活性，表明维生素 E 可减轻脂质过氧化。
本研究表明，饲粮中添加适度氧化的油脂会导致轻度氧化应激，而添加维生素 E 有助于缓解脂质过氧化。
