On day 6, the follicles cultured in EGF 50 showed a mean
follicular diameter that was significantly greater than that observed in the cultured control (P < 0.05), and there was no difference between the EGF 50 and 100. In terms of daily follicular
growth rate, both EGF treatments (EGF 50 or 100) promoted a significantly increase in growth rate as compared to the control condition (P < 0.05).