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Effect of dietary zinc on the histological structure of the jejunum in Pekin ducks challenged with LPS (magnification 10 ×). (A) Jejunum of 0 mg/kg Zn group, (B) jejunum of 0 mg/kg Zn +0.5 mg/kg LPS group, (C) jejunum of 30 mg/kg Zn group and (D) jejunum of 30 mg/kg Zn +0.5 mg/kg LPS group. (E) Jejunum of 120 mg/kg Zn group. (F) Jejunum of 120 mg/kg Zn +0.5 mg/kg LPS group. Abbreviation: LPS, lipopolysaccharide.
