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Cage culture muddy wonderful method
Cage culture of mud loach offers several advantages, including simple equipment, high productivity, easy management, convenient harvesting, and significant economic returns. This makes it a practical aquaculture method worth promoting. Below are the key techniques for cage breeding of mud loach:
First, site selection is crucial. Breeding locations should be in sunny lakes, shallow reservoirs, or flowing water ponds with clean water and no industrial pollution. These areas ensure a stable environment for the fish to grow.
Second, setting up the cages. Cage sizes can vary, typically ranging from 1-2 square meters to 20-40 square meters, with an average size of 10-20 square meters. The cages are made of polyethylene woven mesh with a mesh size of 0.5-1 cm, depending on the water body. It's important that the top of the cage extends at least 40 cm above the water surface to prevent the mud loach from escaping. The bottom of the cage should be covered with a 20 cm layer of manure and mud, while the top layer is also filled with mud to provide a suitable substrate.
Third, stocking density. The number of fish per cage depends on the water quality and available nutrients. If the water is rich in nutrients, you can stock more; otherwise, less. A general recommendation is to stock 900 to 1,200 fingerlings (5-6 cm long) per square meter.
Fourth, feeding and management. In cage culture, artificial feeding is the main method. A 2-square-meter feeding platform should be placed inside the cage, positioned 20-25 cm above the bottom. Food should be given directly on the feeding table. You can use feeds made from bran, silkworm pupae, or commercial pellets. At least 50% of the protein should come from animal sources. The daily feeding amount should be 3-5% of the fish’s body weight, divided into three feedings—early, mid, and late at night.
Fifth, daily management. Regular cleaning of the nets is essential to maintain good water circulation and allow sufficient food organisms to enter the cage. Always check the nets for damage and repair them promptly. Additionally, protect the fish from pollutants such as pesticides and fertilizers, as well as from potential predators or invasive species.
Sixth, disease prevention. It's important to follow proper disease control measures. When feeding, always remove leftover bait from the feeding table. Regularly sprinkle quicklime or hang chlorine bleach bags around the feeding area. To make the bleach bag, wrap calcium oxide powder in two layers of gauze and place one to two bags near the feeding table. This helps prevent diseases effectively.