Pond conditions
Area of ​​3 to 5 acres, depth of 1.5 to 2 meters. Good water injection and drainage conditions, adequate water, good water quality, water retention and fertilizer, and 3 kW impeller aerator for every 3 mu.
Clear Pond Method
Reinforce Tanggu, remove debris and over-thick silt at the bottom of the pond and keep the bottom of the pond to a depth of 15 cm. Then drain 5 to 6 cm of water. Use a calcined water of 150 kg/ha to splash through the clear pond to effectively kill bacteria and parasites. Insects and wild fish. After 2 to 3 days in the clear pond, there is no pollution and no toxic organic fertilizer 80~100 kg per mu, which is used as a base fertilizer and no dressing is applied during the breeding process. Inlet and outlet waters are additionally provided with pollution control and barbed wire.
Fish species stocking
Fish stocking was conducted 10 days after the clear pond. The stockings are generally stocked with 2000 tails/mu, specification 12 heading; squid 100 tail/mu, specification 3 inches; squid 100 tail/mu, specification 50 g/tail.
When stocking fish ponds, the fish body is soaked with salt solution of 3%~4? for 5~7 minutes to disinfect the fish body. Killing the fish parasites and germs is beneficial to the recovery of the injured fish body. When fish ponds are under the pond, they keep the depth of the pond at 60-80 cm, and then gradually deepen the water level to 1.5-2 meters with the growth of the fish.
Feeding and feeding
Adhere to four feeding: timing, quantitative, qualitative, positioning. After the fish species were stocked, they began to feed on the second day. After one week, the fish began to gather and eat. The feeding method was manual feeding. Since the catfish tail prefers low-level light to feed on the ground fish, feeding is done every day after 6am and after 7pm, each feeding for 30 minutes. Each feeding amount was adjusted at any time according to the water temperature, climate, and fish growth on the day. Feeding fish food at each meal was limited to 80% fullness, and 50% of rainy days was sufficient or food was stopped. From July to October every night at 12 o'clock in the evening, use the lighting and feed again, that is, from July to October, feed 3 times a day.
Water quality regulation
Fish ponds cultured with catfish tails require frequent refilling of fresh water to convecure the fish ponds and keep the dissolved oxygen in the fish ponds above 5 mg/L. With 20 kg/ha of calcined water every 10 to 15 days, the whole pond is sputtered for water disinfection and water quality regulation. Every morning and evening, each patrol pond observes the color of the fish ponds, the change of water level, the activity of the fish, and finds that problems are dealt with promptly.
Fish Disease Prevention
One week later, the fish ponds were diluted with 500 ml of iodine solution and diluted in the whole pool. At the same time, the antibiotic antibiotic baits were fed continuously for 3 days. After every 10 to 15 days, the body of water shall be disinfected and disinfected at the bait station with quicklime or other bactericides (such as polyiodide solution, chlorine dioxide, and other chlorine agents). At the same time, one course of oral hemostatic antibiotics and baits were fed every month. Each course was used for 3 days. The use of drugs for the prevention of caterpillars and diseases must be strictly carried out in accordance with the provisions of pollution-free standards, and strict withdrawal period system.
It is the preferred high-grade fish variety in people's dietary structure. It has a large breeding potential and a broad market. At the same time, it has a fast growth rate, a fish body with stomach, and high feed utilization. Without intermuscular punctures, the meat is delicious and it is a cultured species that people like to fish. It is suitable for recreational fishing. It is a way for my county to develop fishery production, increase the income of farmers and fishermen, and lead the farmers and fishermen to become rich.
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