Technology of culturing Monopterus Albus in plastic greenhouse

The cultivation of ricefield eel in plastic greenhouse can be produced continuously all the year round, and soilless running water culture can effectively control the disease and improve the benefit exponentially.

I. Construction of aquaculture ponds:

⑴ open aquaculture pond is suitable for building ponds where there is running water all the year round. The aquaculture pond is made of brick and cement, each with an area of 10-20 square meters, a depth of 40 cm, a width of 1-2 m and a ridge width of 20-40 cm. In the relative position of the pool, there are 2 inlet pipes and 2 drainage pipes with a diameter of 3-4 cm. The inlet pipe is as high as the pool ridge, the drainage pipe is as high as the bottom of the pool, and the other is 5cm higher than the bottom of the pool. Several aquaculture ponds are arranged side by side into a unit, each with an area of no more than 500 square meters.

⑵ closed circulation filter culture pond. It is suitable for use in places where there is a lack of water. The construction method of aquaculture ponds is the same as that of open aquaculture ponds. In addition, aeration tanks and sedimentation tanks should be built, and some equipment for water purification, pumping and heating should be added.

Second, greenhouse construction: the construction of plastic greenhouse is the same as that of ordinary greenhouse, and it is best to put each unit in the same greenhouse to facilitate management.

Third, eel species stocking: after the pool is built, plug the total outlet, fill the pool with water and soak for 5-7 days, then dry the water, then plug the drain pipe which is level with the bottom of the pool, and keep the water in each pool with a micro-flow water depth of 5 centimeters. Before the eel was stocked, the solution was prepared according to the proportion of 8 grams of copper sulfate and 10 grams of bleach per cubic meter of water, stirred fully, and washed in the solution for 20-30 minutes (water temperature 10-15 ℃) after the drug was dissolved. Eel species should be released in time after disinfection, and 4-5 kg of eel species with specifications of 35-50 pieces per kilogram per square meter. The species of eels in the same pond should be the same size.

Feed: after 2-3 days of rearing of Monopterus Albus, cut up earthworms, clams and frogs, put them in the table for domestication, and appropriately increase the flow of water. The first feeding amount can be 1-2% of the total body weight of Monopterus Albus. The next morning inspection, if all can be eaten up, the next feeding rate can be increased to 2-3%, and then gradually increased to about 5%. With the increase of food intake of Monopterus Albus, silkworm pupae, fly maggots, cooked animal offal and blood meal, fish meal, bean cake, rapeseed cake, wheat bran, rice bran and melon skin can be mixed into the feed until artificial feed is fed completely. The protein content of the feed should be 35-40%. When the rice field eel is fed normally, it can be fed once every day at 8: 00 a.m. and 2-3 p.m.

Fifth, daily management: raise ricefield eel in a plastic greenhouse, as the water quality is fresh, as long as the feed is adequate, Monopterus Albus generally will not escape, but we should pay attention to prevent the harm of natural enemies such as rats and snakes. After raising for a period of time, when the rice field eel in the same pool is uneven in size, it should be raised separately in time. Monopterus Albus can be on the market after 5-6 months, with a specification of 6-10 pieces per kilogram, and the survival rate can reach more than 90%.

The most suitable growth temperature of Monopterus Albus is 27-30 ℃. The plastic greenhouse is used without special heating equipment, and it is easy to maintain this temperature in spring, summer and autumn. Even in the cold winter, the average temperature in the shed can reach 20 ℃. Keep micro-running water in the breeding pond, the water quality will not deteriorate.