Fig. 8From: Effects of rearing system and antibiotic treatment on immune function, gut microbiota and metabolites of broiler chickensCorrelation heat map of ileum differential bacteria and differential immune function of broiler chickens. Spearman’s correlations were calculated for all significantly different peripheral (A) and intestinal (B) immune parameters and different ileal microbes on genus level. Colors of squares represent r values of spearman’s correlation coefficient. *P < 0.05Back to article page