Fig. 2

Principal coordinate analysis plot (PCoA) using an Euclidean distance matrix at the amplicon sequence variant level in faecal microbiota at day 17 of lactation of sows fed increasing levels of hemicelluloses (HC13 = 13%, HC11 = 11%; HC9 = 9%; HC8 = 8%) during the lactation period. Axis 1 and Axis 2, respectively, explained 11.5% and 7.2% of the variance of the abundance of gut microbiota at the amplicon sequence variant level. The present r-square (r2) and P-value depict the overall sow dietary treatment effect