Fig. 5.

Percentage of different developmental stages of follicles represented in female ovaries (mean ± SEM). The percentages were calculated as (number of follicles at certain stage/total number) × 100%. No significant differences were found (n = 3 tanks/treatment analyzed at 2 weeks with 1–2 fish/tank and 6 tanks/treatment at 4 weeks with 2–3 fish/tank). Follicle stages 1a–1c represent the previtellogenic phase. Stages 2 and 3 are considered vitellogenic and mature follicle stages, respectively.