Effect of Probiotics and Herbal Products on Intestinal Histomorphological and Immunological Development in Piglets

Figure 3

Ki-67 positive epithelial cells in crypts of the jejunum and colon. (a, b) Mean values with different letters are significantly different (P <0.05). The error bars show the standard error of measurements (ten randomly selected visual fields of 4 piglets from each group (n = 16)).