Fig. 2

Relative abundance of 10 rumen bacterial species in the most- and the least-efficient multiparous Holstein dairy cows during the peripartal period. Significant differences (P < 0.05) between RFI groups at a given time point are denoted with an asterisk (*). ^a-cDifferent letters indicate differences due to the main effect of time (P < 0.05). Data were logit transformed to ensure normality of residuals