Between-horse comparison of the intestinal microbiota of selected compartments based on 6 horses with similar dietary and housing management and 4 other horses. The Dice similarity coefficient (Cs) is plotted on the y-axis. Two identical profiles create a Cs value of 1, whereas completely different profiles result in a Cs value of 0. The means and standard error of the mean are shown. The six Bashkir Curly horses all had similar dietary and housing management, the four other horses had unknown dietary and housing management. A significant difference in microbiota richness between similarly managed horses and other horses was seen in some compartments. * denotes significant differences (p < 0.05) between the six and other horses for a given compartment.