The eel pond should be built near the house, with the leeward facing the sun and pollution-free water source. The size of the swimming pool is 6- 10 square meter, and the cement pool is the best. The wall and bottom of the pool are generally made of bricks and stones, and jointing with cement mortar. The top of the pond wall is made of red tiles or bricks in a "T" shape to prevent eels from escaping.
The depth of the pool is generally 70- 100 cm. Drain holes are respectively opened on the walls of the pond 30 cm, 45 cm, 100 m and 60 cm away from the bottom of the pond, and anti-escape grids are installed. Spread a layer of silt with a thickness of 30cm rich in organic matter at the bottom of the pond, then pile up a proper amount of stones, tree roots and other sundries, and then inject fresh water to keep the water depth between 10- 15cm (the water level is just close to the drainage hole 0.45m away from the bottom of the pond). Build a shed on the eel pond to grow melons.
2. Seed source and stocking quantity.
Monopterus albus fry requires neat specifications, strong physique and no scars. Seedlings are usually stocked in late April. Before putting them into the pond, the pond should be disinfected with quicklime. The specific method is: 75 kilograms of quicklime per mu is added with water and stirred evenly, and eel fry is released after 7 days. When put into use, it should be soaked in 4% salt solution for disinfection. The stocking amount is generally 1.5-5.0 kg/m2, preferably 2.5-3.5 kg/m2. The variety specification of eel is 40/kg.
3. Feeding and management.
(1) Monopterus albus fed with bait mainly eats meat, and likes to eat animal feed such as earthworm, fly maggot, small fish and shrimp, aquatic insects, river snail clam, and also plant feed such as bran, rice balls, bean dregs and broken peel. Eel species cannot be fed for 2-3 days after stocking.
After that, from long summer to awning, the daily feeding amount is 3%-4% of the body weight of Monopterus albus in the pond. After busy, it is the feeding season. Whether the daily feeding amount is appropriate can be judged according to whether you eat on that day. When feeding Monopterus albus snails and mussels, the shells should be removed and chopped. Bait can be scattered all over the pool, but it's best to throw it on the food table. Feeding time is usually 6-7 pm, and can be advanced day by day in the future.
(2) Water quality management The water quality of the eel pond should be kept fresh, and aquatic plants can be planted in the pond. Change the water every 5-7 days, and appropriately increase the number of water changes in high temperature season. Remove the residual bait in time. Always check whether the nylon net of the drain pipe is damaged. When it rains heavily, keep the drainage pipes unblocked.
4. Prevention and treatment of common diseases.
In the process of Monopterus albus culture, common diseases mostly occur in late spring and early summer, and the symptoms are round or oval erythema on the back and sides. In severe cases, the epidermis will rot and it will be impossible to enter the hole. Bleaching powder 1 g per cubic meter of water can be sprayed on the whole pond, and the sick eel can be cured after 3-4 days.
Treatment of capillary nematodiasis: 0. 1 g of 90% crystal trichlorfon can be used per kilogram of eel, mixed with snails and mussels, and fed for one week.
The prevention method of fever is to change water frequently during the transportation of Monopterus albus.
5. Storage and transportation of Monopterus albus.
When raising Monopterus albus at home, we should pay attention to the Monopterus albus to be sold and transported. We should first store it in a water tank, a wooden bucket or a cement pool and change it frequently. After several days of temporary breeding, the excrement of Monopterus albus has been basically discharged, and it can be transported next.