Figure 2.

Principal coordinate analysis (PCoA) based on Bray—Curtis dissimilarity matrix on sampling sites: (A) Ileal chymus age effect; (B) Ileal chymus dietary treatment effect at d 7; (C) Ileal mucosa age effect; (D) Caecal chymus age effect. Dietary treatments were C—Control, Br—Broilact^®, Sy—Synbiotic feed additive. The percentage of variation explained by each PCoA is indicated on the axes with Bray—Curtis dissimilarity. To verify the significance of bacterial community analysis of similarities (ANOSIM) calculations were performed with 999 permutations. The differences were considered significant at a level of p ≤ 0.05.