Figure 5

Percentage of females in different maturity stages of gonadal development in (a) control and (b) rGth-treated group, and evolution of percentage frequency of oocyte developmental stages observed in (c) control and (d) rGth-treated group in different weeks of the experimental period. The maturity status of females was determined by the most advanced oocyte stage present in the samples. To calculate the percentage of each oocyte stage, a total of 50 random oocytes per female were classified and proportions were estimated. Each bar section represents the mean percentage of oocytes per stage from females for each week. PG primary growth oocyte, SGca cortical alveoli step, SGe early secondary growth, SGl late secondary growth oocyte (≥ 400 µm), SGfg full-grown secondary-growth oocytes, GVM initial germinal vesicle migration.