Effects of phytosterol on intestinal redox status of broilers

Objective:To research the effect of phytosterols on intestinal redox state of broiler chickens.Methods:One hundred and five male broiler chickens (44g each) were randomly divided into 7 groups, and each group was assigned to 1 of 3 treatments.Birds in each group were kept in three coops (5 broilers per coop) .All broilers were offered the same basal diet with added phytosterols at levels of 0 (control) , 0.015‰, 0.020‰, 0.025‰ phytosterols of low hydroxyl valve and 0.050‰, 0.025‰, 0.075‰ phytosterols of high hydroxyl valve.Results:Indicated that compared with control treatment, broilers fed diets supplemented with phytosterols at levels of 0.015‰, 0.050‰, 0.075‰ could increase the level of total antioxidant status (T-AOC) of ileum.Broilers fed diets supplemented with phytosterols could significantly increase the level of GSH/GSSH, which reflects the redox status of broilers (p <0.05) .Meanwhile, it could also reduce the level of malondialdehyde (MDA) of duodenum and jejunum, but not significantly.Conclusion:Adding phytosterols could clean out free radicals, recovery the redox balance and relieve oxidative stress, which protected the body from oxidative damage.