Fig. 6

Heat map showing correlations between intestinal microbiota, growth performance, intestinal immunity, and barrier-related parameters, with each cell representing the correlation coefficient and magnitude. Connecting lines between differentially enriched microbial genera in the ileum and cecum correlate with the corresponding environmental factors, with line thickness and color indicating the strength and significance of the correlation. * indicates P < 0.05; ** indicates P < 0.01; *** indicates P < 0.001