Fig. 1

Representative light micrographs of jejunum from chickens at 42 d of age fed the diet C (a) or diet Y (b) after AB-PAS staining. Bar = 50 μm. Immuno-histochemical staining of jejunum from chickens at 42 d of age fed the diet C (c, e) or diet Y (d, f) for the determination of cells positive to CD45 (c, d) or CD3 (e, f). The rectangle delimits the area of the epithelium in which intraepithelial positive cells were counted (short side at 100 μm)