However, knowledge about the influence on other intestinal digestive and physiological
parameters such as expression and activity of digestive enzymes via E. faecium administration
in piglets is still scarce. Some researchers have corroborated with their results of gnotobiotic
pig studies that early colonization with different bacterial species can dramatically modify the
small intestinal development and the brush border membrane enzyme activities (Willing and
Van Kessel, 2007, 2009).