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Effect of dietary fiber on colonic mucosal thickness of piglets. (A) LF without CFA challenge; (B) HF without CFA challenge; (C) LF with CFA challenge; (D) HF with CFA challenge. Original magnification 200×; stained with hematoxylin and eosin staining. a,bMean values within a row with different superscript letters were significantly different (p < 0.05). (E) Histogram of colonic mucosal thickness data.
