Fig. 6

Alpha diversity of Proteobacteria and Firmicutes affected by intramuscular injection. a Proteobacteria in negative control and corticosterone injected treatment group (NC_CORT) at week 7 and 8 post Salmonella infection. b Proteobacteria in Salmonella Typhimurium infected treatment (INF_PBS) group at week 7 and 8 post-infection. c Proteobacteria in Salmonella Typhimurium infected and corticosterone injected treatment group (INF_CORT) at week 7 and 8 post Salmonella infection. d Firmicutes in negative control and corticosterone injected treatment group (NC_CORT) at week 7 and 8 post Salmonella infection. e Firmicutes in Salmonella Typhimurium infected treatment group (INF_PBS) at week 7 and 8 post Salmonella infection. f Firmicutes in Salmonella Typhimurium infected and corticosterone injected treatment group (INF_CORT) at weeks 7 and 8 post Salmonella infection. NC_CORT and INF_CORT received intramuscular injection of corticosterone, while group INF_PBS received intramuscular injection of PBS