Fig. 8
The homogeneity of dispersion among farms. The Bray–Curtis distance of each sample to the centroid of the group was analysed to study the dispersion. The P values show the significance of difference among farms analysed with ANOVA. Farms sharing at least one common letter (a or b or c or d) had similar dispersion of samples (Tukey's HSD P > 0.05). (a) Oesophagus. (b) Crop. (c) Proventriculus. (d) Gizzard. (e) Duodenum. (f) Jejunum. (g) Ileum. (h) Caecum. (i) Colon