“…In piglets, the process of disappearance of the vacuolated enterocytes along the small intestine depends on the extent of the development of the intestinal mucosa and happens in the first three weeks of life (Clarke and Hardy, 1971;Moon, 1972;Sangild, 2001;Biernat 2002;Elbrønd and Weström, 2007Skrzypek et al, 2007a. The disappearance of vacuoles takes place in the direction from the duodenum to the ileum.…”