1, build a feeding pond. ① Open feeding pond. Suitable for building pools in places with warm running water all the year round. The advantage is that the flow is stable and suitable for large-scale operation, but the disadvantage is that there are regional limitations. The feeding ponds are made of brick and cement, each pond has an area of10 ~ 20 square meters, a pond depth of 40 cm, a width of1~ 2 m, and a ridge width of 20 ~ 40 cm. Two water inlet pipes and two water outlet pipes with a diameter of 3-4 cm are arranged at the opposite position of the pool. The water inlet pipe is the same height as the bottom of the pool, the water outlet pipe is the same height as the bottom of the pool, and the other pipe is 5 cm higher than the bottom of the pool. The water inlet and outlet pipes are all equipped with metal nets to prevent escape. A plurality of feeding ponds are arranged side by side as a unit. The area of each unit should not exceed 500 square meters.

② Closed circulating filter feeding pond. Suitable for application in big city or places lack of water sources. Its advantages are that the pool water can be reused, with less water consumption and convenient temperature control, but the investment is slightly larger. The construction method of the feeding pond is the same as that of the open type. In addition, it is necessary to build aeration tanks and sedimentation tanks, and equip them with some water purification, pumping and heating equipment.

2. Greenhouse construction. The construction of plastic greenhouse for breeding Monopterus albus is the same as that of ordinary greenhouse, and it is best to build a unit in the same greenhouse for easy management.

3. Put in eel species. After the pool is built, plug the main drain, fill it with water and soak it for 5 ~ 7 days, then drain it, then plug the drain hole at the bottom of the pool, and then inject water to keep the micro-flow water in each pool with a water depth of 5 cm, and then it can be stocked. Eel species need to be disinfected before stocking. When the mixed solution of copper sulfate and bleaching powder is used for disinfection, 8 grams of copper sulfate and bleaching powder 10 grams per cubic meter of water are put into the water, fully stirred, and the eel seeds are soaked in the liquid medicine for 20-30 minutes (the set water temperature is10 ~15℃), so that water mold and water mildew can be prevented.

The daily management of Monopterus albus culture includes water quality prevention, heatstroke prevention, overwintering, eel disease prevention, etc. The efficiency and quality of these tasks determine the annual output and benefits.

1. escape prevention. Escape prevention is the first aspect that should be paid attention to in daily management. Rainy days, especially continuous heavy rain, should be drained in time to prevent fish from escaping, and the drainage holes should be checked frequently. The drain hole should have a reliable and solid fish barrier to prevent eels from escaping from the drain hole.

2. Water quality management. Keep the pool water stable and fresh. The water depth of eel pond is generally kept at about 15 cm, which can be appropriately deepened in high temperature season. Whenever the weather turns from sunny to rainy or rainy to sunny, and the weather is sultry, the water body is often prone to lack of oxygen, so fresh water should be poured on the eve of this weather to avoid the eel sticking its head out of the water layer and breathing out of the water, which is not conducive to growth. Change the water frequently to keep the water quality good. It is hot in summer, so water should be changed every day. Sometimes, due to the deterioration of residual food, the pool water stinks, and it is necessary to change water in time. If the temperature is normal and the water quality does not deteriorate obviously, it can be changed to 1-2 days/time.

3. heatstroke prevention and wintering. The water temperature is directly related to the feeding and growth rate of Monopterus albus. Usually, when the water temperature is below 10℃, Monopterus albus is in a dormant state and does not go out of the hole or eat. When the water temperature rises to 12℃, it begins to go out for food, but its activity is weak. The optimum temperature for the growth of Monopterus albus is15℃-28℃. When the water temperature is above 28℃, the food intake will decrease. Therefore, attention should be paid to maintaining an appropriate water temperature in feeding to facilitate the feeding and growth of Monopterus albus.

In the hot and hot season, when the water temperature exceeds 30℃, fresh and cool water should be changed frequently. If the head of Monopterus albus is exposed to the mud or the whole body is lying on the mud, the response is slow, so it is necessary to quickly flush or add cool mud to the mud, which can generally avoid death. When showering with well water and spring water, the water inflow speed should not be too fast.

When the temperature drops to about 15, high-quality bait should be fed for fattening. When the temperature drops below 10℃, the pond water can be drained. In order to keep the pond mud moist and warm, a small amount of straw or straw bags can be covered on it to avoid freezing and death of Monopterus albus. At the same time, we should pay attention to prevent the harm of rats and livestock. If the residual hot water in the factory can be used to keep the pool temperature at about 25℃, the growth period of Monopterus albus can be prolonged, the growth of Monopterus albus can be accelerated and the yield can be increased.