Stage;Characteristics;Image
"Primary growth";"Oogonias (nests)";
;"Chromatin nucleolar"
;Perinucleolar
Pre-vitellogenic;"Cortical alveoli";
Vitellogenic;"Primary vitellogenic –Vtg1";
;"Secondary vitellogenic – Vtg2 (378.7μm ± 315.3 μm s.d. diameter)";
;"Tertiary vitellogenic – Vtg3 (585.4 µm ± 450.1 µm s.d. diameter)";
"Postovulatory follicles and atresic";"String formation of granulosa cells disorganised or absent. Disintegration of the nucleus";