Monopterus albus has strong adaptability to the environment, and some abandoned water bodies that are not suitable for raising other fish and puddles and ponds that are not suitable for planting crops can be used as Monopterus albus ponds. You can also choose a place with sufficient water and sunny ventilation to build the eel pond. Monopterus albus ponds are rectangular in east-west direction, with a depth of about 1 m and an area of 20 ~ 50 square meters depending on the scale of culture. The bottom, wall and gaps around the eel pond must be blocked tightly to prevent the eel from escaping. The eel pond must have a water inlet, a water outlet and an overflow outlet for discharging sewage, changing water and preventing fish from escaping when the water in the heavy rain pond rises. Fish-catching facilities must be installed at each nozzle. In order to facilitate the growth of Monopterus albus, we can artificially imitate the natural environment for Monopterus albus to inhabit, such as putting stones and roots in the pool or planting aquatic plants such as floating lotus in the pool.
2. Selecting and stocking eel seedlings
At present, the farmed eel seedlings must be harmless, disease-free, robust, smooth in body surface and golden in color. Generally, about 80 eel seedlings per kilogram are selected. If the specifications of eel seedlings are too small, it will affect their food intake and weight gain, and they cannot be harvested in the same year. The farmed eel seedlings must be neat in specifications and consistent in size. The stocking density is about10g eel fry 100 fish per square meter. The effect of stocking eel seedlings in early spring is good, which is beneficial to the early feeding of eel and the extension of growth period.
3. Daily management
In addition to doing a good job of feeding, the key points are to prevent Monopterus albus from escaping, improve water quality, and do a good job of heatstroke prevention and wintering:
Escape prevention. Check and maintain the escape prevention equipment of eel pond frequently. Drain water in time in rainy days, especially in heavy rain, to prevent Monopterus albus from escaping from the drainage hole.
Water quality management. To keep the pool water stable and fresh, the depth of Monopterus albus pool water should be between 15-25cm, and it can be deepened in high temperature season. When the weather changes suddenly (from rainy to sunny) and the weather is sultry, fresh water should be injected in time to prevent Monopterus albus from floating head frequently due to lack of oxygen, and the water should be changed regularly. In high temperature season, the water must be changed every day and the residual food should be cleaned up in time.
To do a good job in heatstroke prevention and wintering, the suitable water temperature for the growth of Monopterus albus is 15-30℃, and above 30℃ has a bad effect on food intake, so it is necessary to do a good job in heatstroke prevention in high temperature season, and plant shade crops around Monopterus albus pond; Change the pool water frequently, and inject well water or spring water in time (the temperature difference cannot be too big). When the water temperature is below 10℃, Monopterus albus is in a dormant state, so when the temperature drops to about 15℃, it is necessary to feed Monopterus albus with high-quality bait, so that Monopterus albus can eat a lot and store nutrients for hibernation. When Monopterus albus hibernates, we should pay attention to keep the pond mud moist and warm. Prevent eel from frostbite and freezing to death. In addition, attention should be paid to prevent the harm of rats and so on.
4. Artificial feeding
Monopterus albus is a carnivorous omnivorous fish with a wide range of bait sources. Such as small fish and shrimp, earthworms, animal offal and leftovers, tadpoles, silkworm chrysalis, snail meat, rice, melon skin, vegetable scraps and so on.
The feeding of Monopterus albus should adhere to timing, positioning, qualitative and quantitative feeding. That is, we usually feed Monopterus albus after dusk, and set up a fixed place for Monopterus albus feeding, which is beneficial for Monopterus albus to eat at a fixed point, and is convenient for us to observe the feeding situation of Monopterus albus and clean up the residual bait; The bait must be fresh and live; The daily feed amount is about 6% of the weight of Monopterus albus, and it should be adjusted according to the feeding situation of Monopterus albus the day before, so it is advisable to have a little surplus after feeding. Feeding Monopterus albus must not be long or short, or it will affect the growth of Monopterus albus.