Figure 5

Network representing the associations observed between the immune parameters and the OTU abundances in laying hens, one week after their infection with IBV. Associations were calculated with Spearman correlation in (a) the total population, (b) the vaccinated and challenged (V-Ch) group, and (c) the non-vaccinated and challenged (NV-Ch) group, with positive associations represented with green segments, and negatives ones with red segments. Only significant (p < 0.05), intermediate (total population: 0.4 < r < 0.6; V-Ch and NV-Ch groups: 0.5 < r < 0.7) and high (r > 0.6, thick segments) correlations are shown.