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Effects of treatments on VH and CD in jejunum and ileum of piglets. Values are means of height and depth (µm) with their standard deviation (±SD) represented by vertical bars (n = 6 animals). a,bMean values with unlike letters are significantly different (P < 0.05). OAFA, blend of organic acids and cinnamaldehyde; OAFA1, basal diet supplemented with 1 kg OAFA/ton feed; OAFA2, basal diet supplemented with 2 kg OAFA/ton feed.
