Fig. 1

Cross section through small intestine (ilium) from rabbits of different dietary treatments at 18 weeks of age. (M) muscularis mucosa; (SM) submucosa; (Cr) crypts of Lieberkühn; (V) Villi; (L) lumen. ((H & E × 100). 1a Control; 2b 0.1% S. cerevisiae; 3a 0.1% B. subtilis; 4b 0.05% S. cerevisiae + 0.05% B. subtilis