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Introduce the breeding habits of tilapia
The breeding behavior of Nile tilapia, Oriya tilapia, and Mozambique tilapia is quite similar, as they all construct nests for spawning. Male fish typically build these nests, and both males and females take part in the process, with the females laying eggs and the males fertilizing them. These species are polygamous and can spawn multiple times throughout the year. Under moderate water temperatures, tilapia reach sexual maturity at around six months of age. A 200-gram tilapia can produce between 1,000 to 1,500 eggs per spawning event.
Mature male tilapia usually weigh over 150 grams. When water temperatures rise above 20°C, males display clear signs of readiness to breed. For example, Nile tilapia develop a reddish-brown coloration, while Oriya tilapia turn dark purple. The dorsal and caudal fins of mature males often take on a pinkish or reddish hue. These males become very active, digging nests and actively courting females. They guide females into the nest for spawning and then fertilize the eggs.
Spawning can occur continuously for about 20 days if the water temperature remains favorable. However, there is an inverse relationship between fish density and reproductive activity—higher densities tend to reduce spawning frequency. This makes it important to manage stocking levels when breeding tilapia in controlled environments. Understanding these behaviors is crucial for successful aquaculture and conservation efforts.
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