Figure 4

Protein expression of PCNA in bursal cells from the broilers in the control group and AFB1 group. Image (A and B) are representatives of the negative control staining in the control group and AFB1 group at 7 days of age, respectively. Line chart (C). shows the change of integrated optical density (IOD) of PCNA-positive cells by immunohistochemical method. All data are expressed as means ± standard deviation. **p < 0.01 vs control, n = 6 for each group.