Figure 7. The percentage of ZP2 expression in tertiary follicles of mice ovaries for all the study groups. The group with a 50:50 ratio of soybean to pelleted feed (K1), the group with a 25:75 ratio of soybean to pelleted feed (K2), and the control group without soybean administration (K3). The error bar indicates standard deviation (SD). * p<0.05, **p<0.01, ts=not significant, one-way ANOVA.