They also reported that villi length and surface gradually decreased from duodenum to ileum sections. Santin et al. (2001) reported that when birds were treated with 0.2% of yeast cell walls, villus height was increased and crypt depth was reduced.It is possible that some garlic constituents by direct interaction with selective population of intestinal cells or by the indirect effect of via gut endocrine cells are able to stimulate gut cellular proliferation (Gupta and Sandhu, 1998).