How to Raise Tilapia? Detailed Explanation of Key Aquaculture Techniques

Today let us step into the world of fish, and today the fish we are going to learn about has a very nice name——tilapia. So today we are going to explore two questions about tilapia. First, how exactly do you raise tilapia? Does tilapia have any special aquaculture techniques? With these two questions in mind, let us step into the world of tilapia together.

How to Raise Tilapia

1. Omnivorous feeding habits: Tilapia is a plant-based omnivorous fish. For tilapia in ponds, the contents of the digestive tract are mostly organic debris and other plant-based feed (such as aquatic plants, commercial feed, and so on), followed by phytoplankton, zooplankton and a small amount of benthic animals.

2. Tolerant of low oxygen: Tilapia has a very strong tolerance for low oxygen, with an asphyxiation point of 0.07-0.23 mg/L. When the dissolved oxygen in the water is 1.6 mg/L, tilapia can still live and reproduce. When the dissolved oxygen in the water is above 3 mg/L, growth is unaffected.

3. Not tolerant of low or high temperatures: The survival temperature range of tilapia is 15-35°C. When the water temperature is below 15°C, tilapia enters a dormant state. The maximum critical temperature for tilapia is about 40°C-41°C, the most suitable growth temperature is 28°C-32°C, and the reproduction temperature for tilapia is above 20°C.

4. Strong reproduction: Tilapia matures sexually early, has a short spawning cycle, incubates young fish in its mouth, has low requirements for breeding conditions, and can reproduce naturally in large, still bodies of water. Tilapia reaches sexual maturity at 6 months, with females weighing about 200 g.

Tilapia Aquaculture Techniques

1. Before stocking fry, the pond must be cleared and disinfected. Generally in early to mid-April, use 75 kg to 100 kg of quicklime per mu to clear the pond, add water to a depth of 1 m after 7 days, then apply 300 kg to 400 kg of decomposed manure per mu, and a small amount of duckweed or azolla can be added.

2. Each spring, when the water temperature rises and stabilizes above 15°C, begin stocking winter fry. For pond monoculture, generally stock 1500 to 3000 fry per mu, while polyculturing 40 to 70 silver carp and 40 to 70 bighead carp fry to control water quality; when polycultured with other fish, 200 to 500 fry per mu can be stocked.

3. Tilapia can begin to be fed 2 to 3 days after entering the aquaculture water body. Tilapia has a very broad diet, and under artificial rearing conditions it can be fed various feeds, such as wheat, corn, oilseed cakes and meals, all of which are high-quality feeds for it. The protein content in the feed should initially be 32%-35%, and the daily feeding amount should be 3%-5% of the total fish body weight.

Tilapia Disease Prevention and Control

1. Fish disease prevention and control should focus on prevention, mainly by strictly controlling stocking density, regulating aquaculture water quality, feeding nutritionally complete and fresh feed, and regularly sampling fish for body surface and anatomical examination. Once fish disease is found, fisheries professionals should be promptly invited to diagnose it, and treatment should be carried out under the guidance of professionals according to the symptoms.

2. After half a month, splash 1-2 g/cubic meter of bleaching powder (28% effective chlorine) once; 4. Keep the water quality fertile, lively, tender and refreshing, and slightly alkaline; dead fish should be promptly removed and buried in soil after disinfection; tools used in diseased fish ponds must be soaked and disinfected, and water from diseased fish ponds must not be discharged arbitrarily without disinfection.

How Big Can Tilapia Grow

1. Tilapia is not a native species; it is an introduced species, and it has only appeared in our recipes and rivers in recent years. Really large tilapia are indeed rarely seen, especially when we go fishing, those that can be caught are only about the size of a palm.

2. Of course, in some waters in the south, there are still many tilapia now. Tilapia has particularly strong reproductive and adaptive abilities, and can survive in some relatively harsh environments. In addition, it is difficult to find natural enemies in the waters of the south, so tilapia survive quite well in the south.

3. In the south, occasionally a relatively large tilapia can still be caught. The largest tilapia I have seen was over ten jin in size, which could be considered a tilapia king, but a tilapia over ten jin in size is also a rare sight.

How should tilapia be raised? It is all in the article. May I ask, have you, in the reading section, got the function of how to raise tilapia? Did you understand the aquaculture techniques for tilapia? I hope friends in today's reading section can gain something from it.