21/04/2026
Tilapia are maternal mouthbrooders (specifically Oreochromis species), meaning the female incubates fertilized eggs and larvae in her mouth for 7-10 days. using fine-meshed netcages (hapas) in ponds or lakes for the natural, sustainable production of tilapia fry.
Natural Breeding Method
Breeder Selection and Stocking:
Select mature tilapia (50g to 250g) and stock them at a density of 4 breeders per
in spawning hapas or concrete tanks.
Maintain a s*x ratio of 3 females to 1 male (or 5:1) to optimize egg production.
Spawning Environment:
Water depth should be maintained at roughly 0.5-1.0 meter.
The female lays eggs in a saucer-shaped nest built by the male, which are then fertilized by the male.
Incubation:
The female collects the fertilized eggs and keeps them in her mouth for 3–4 days to hatch, and then for another 3–4 days as they absorb their yolk sac.
Fry Harvesting (Natural Method):
Harvest fry every 15–21 days during spawning.
Raise the netcage (hapa) to concentrate breeders, then scoop out the swimming fry.
Separate the fry from the broodstock to prevent cannibalism and move to nursery tanks.
Re-stocking:
The female broodstock can be returned to the breeding netcages to start the next cycle immediately, as spawning can occur as often as twice a month.
Key Factors for Success;
Nutrition: Feed breeders a 40% protein diet at 3% of their body weight daily to improve fecundity.
Water Quality: Maintain good water quality and ensure adequate dissolved oxygen to reduce stress and maximize reproduction.
Temperature: Ideal water temperature for reproduction is between 25°C to 30°C.
In commercial settings, some farmers may remove the eggs from the female’s mouth early to incubate them artificially, which allows the female to spawn again faster.
