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. 2007 Jun 4;5:20. doi: 10.1186/1477-7827-5-20

Table 3.

Feature of the ovarian area of the gonad of gilthead seabream at the end of the second reproductive cycle/beginning of the third reproductive cycle.

Months Types of cells present in the ovary Cell diameter
(μm)
Nuclear diameter
(μm)
Cytoplasm Nucleus Follicle related structures
October No further development

Vitellogenic oocytes at secondary yolk vesicle stage
*
192.8 ± 9.5 89.0 ± 4.5 Acidophilic globules
distributed at the periphery
Lipid dropped close
to the nucleus
Granulosa Zone radiate Theca cell layer

November Vitellogenic oocytes at tertiary yolk vesicle stage
*
310.6 ± 24.9 114 ± 3.5 Numerous eosinophilic globules Granulosa Zone radiate Theca cell layer

Atretic follicles
**
Irregular in shape
Numerous acidophilic and some basophilic granules
Highly condensed and basophilic Flattened cell monolayer

*In November also appeared the germ cell types present in the ovary in October-July. These specimens are females.

**In November, the most developed vitellogenic oocytes undergoes an atretic process. These specimens are males.