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9.4. Hatching and rearing
Unit 9 - Breeding of tilapia
9.4. Hatching and rearing
- The developing eggs are allowed to hatch either in the mouth of the female or robbed (removed) and kept for hatching in jars with running water.
- The stocking density of eggs is 5,000 eggs /L water.
- The eggs hatch in 3 days at 26 – 28oC.
Fry rearing
- The yolk-sac fry is reared in perforated rectangular trays of 40 x 25 x 10 cm, made of aluminium or plastic, with running water.
- Yolk-sac is completely absorbed in 8 – 10 days.
- After about 20 days, the fry are transferred to prepared nursery pond for on-growing to fingerling stage.
- The fry are fed with crumbles (40% protein).
Last modified: Saturday, 18 June 2011, 6:49 AM