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Effects of lutein on jejunal morphology of LPS-challenged yellow-feather broilers. CON group, basal diet; LU20 group, basal diet added with 20 mg/kg lutein; LU40 group, basal diet with added 40 mg/kg lutein. VW, villus width; VA, villus area; GCD, goblet cell density. The values with different superscript letters are different (P < 0.05). Error bars stand for the standard error of mean.
