Fig. 1

HE staining of intestinal tissue from chicks of different ages. A HE staining of tissue sections of duodenum, jejunum, and ileum from 10-day-old chicks. B HE staining of tissue sections of duodenum, jejunum, and ileum from 17-day-old chicks. Scale bar = 100 µm. CON, control group; S, the group infected with Salmonella Enteritidis; P50, the group infected with Salmonella Enteritidis + 50 mg/kg Puerarin; P100, the group infected with Salmonella Enteritidis + 100 mg/kg Puerarin; P200, the group infected with Salmonella Enteritidis + 200 mg/kg Puerarin; P400, the group infected with Salmonella Enteritidis + 400 mg/kg Puerarin