Fig. 7From: Modulation of intestinal microbiota, morphology and mucin composition by dietary insect meal inclusion in free-range chickensHistological pictures of duodenal (a, c, e) and ileal (b, d, f) villi stained with (a, b) periodic-acid Schiff (10× magnification), (c, d) Alcian Blue pH 2.5 (10× magnification) and (e, f) high iron diamine (10× magnification). Ileal villi show higher mucin staining intensity than duodenal onesBack to article page