Fig. 2

Heatmaps of the weighted Unifrac distances at the first month and last month of fattening. Heatmaps of the β-diversity weighted Unifrac distances matrix are shown for the (a) first sampling (day 7), (b) second sampling (day 21), and (c) last sampling (day 161 for farms A and B and day 147 for farm C). Each square represents a pairwise distance between two calves. The pale yellow squares indicate low Unifrac distances, whereas dark red squares indicate high Unifrac distances. The calves are ordered according to the farms in both the lines and columns. The calf’s distance from itself is represented by the white square on the main diagonal. The means ± standard deviations for each sampling and farm are shown in the lower triangles