Effect of different VFAs on relative gene expression of CLOCK and PPARs family in ruminal epithelial tissue.

Note: PER, period circadian clock; CLOCK, clock circadian regulator; PPARα, peroxisome proliferator-activated receptor alpha; PPARγ, peroxisome proliferator-activated receptor gamma. Values with different superscripts on the bars differ significantly (P<0.05), and values with the same superscripts on the bars have no significance (P>0.05).