Tilapia farming

Tilapia, a tropical fish native to Africa, is a popular aquaculture species worldwide. Tilapia boasts an omnivorous diet, rapid growth, strong adaptability, low disease risk, high male fertility, high colony yield, and excellent meat quality. It is a recommended premium aquaculture species by the Food and Agriculture Organization of the United Nations. With its promising market prospects, tilapia has become a leading aquaculture species in current aquaculture, especially in freshwater aquaculture. What factors should be considered when cultivating such an aquaculture product in galvanized canvas fish ponds?

Living organisms require light and water. Therefore, when choosing a location for a canvas fish pond, the preferred location is one with good drainage, ample sunlight, high-quality water, and no pollution. These requirements must be considered for both traditional fish ponds and new galvanized canvas fish ponds. Tilapia ponds are generally designed with a water depth between 1.8 and 2.5 meters. A pot-shaped bottom is dug, and a fish toilet and drainage pipes are installed. The purpose of the pot-shaped canvas pond bottom is to facilitate the sedimentation of excrement into the fish toilet, facilitate drainage, and reduce the production of nitrite and ammonia nitrogen.

Oxygen is also essential for aquaculture, so tilapia farming equipment can be equipped with aerators or water aerators. Although tilapia is relatively tolerant of low oxygen levels, with an asphyxiation point of 0.07 to 0.23 mg/L and the ability to survive at 1.6 mg/L of dissolved oxygen, during daily management and inspections, if tilapia are found to be hypoxic, oxygenation equipment should be used promptly. This step is essential even for traditional pond farming.

The canvas fish pond recirculating water aquaculture model can ensure that the water in the fish pond remains clean. The water quality of the aquaculture water also has a relatively large impact on the aquaculture. After feeding the tilapia daily, the bait residue should be promptly salvaged. In daily life, sewage should also be discharged in a timely manner to remove the tilapia's excrement to prevent these wastes from deteriorating and rotting in the canvas fish pond and damaging the water quality. The accumulation of waste in the canvas fish pond will cause excessive ammonia nitrogen and nitrite in the water body. The effects of ammonia nitrogen and nitrite on fish include destroying the immune system of fish tissues and reducing resistance. Ammonia nitrogen poisoning will lead to reduced food intake and slow growth of fish. Excessive nitrite content will cause lesions in the fish's gill tissue, difficulty breathing, and even death.