9.4. Hatching and rearing

Unit 9 - Breeding of tilapia

9.4. Hatching and rearing

Hatching of eggs

  • 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