a Rank abundance curve. b Principal coordinate analysis (PCoA) (n = 6–9). c Unweighted pair group method with arithmetic mean (UPGMA) analysis for the shifts in microbial community structure (n = 8–9). d Bar chart showing the relative abundance of intestinal microbiota on phylum level. e One-way ANOVA analysis of the composition of intestinal microbiota on phylum level (n = 8–9). f Cladogram analysis showed that taxa most differently associated with mice fed with CON or ETH diet (Wilcoxon rank-sum test). Circle sizes in the cladogram plot are proportional to bacterial abundance. The circle represents from the inner circle to the outer circle: phyla, genus, class, order, and family. CO corn oil, OFO oxidized fish oil, FO fish oil.