Mixed Culture technique of Monopterus Albus Misgurnus anguillicaudatus

Monopterus albus loach polyculture, yes, Monopterus albus and loach are what we often see, they can be polycultured together, and polyculture can produce greater benefits and higher yields, let's talk about Monopterus albus loach polyculture technology.

Polyculture Technique of Monopterus albus and Loach

I. Build a pond for breeding eel and loach in a breeding pond

To choose a place where the wind is sunny, the environment is quiet, and the water source is convenient, cement ponds or soil ponds can be used, and cage cultivation can also be carried out in reservoirs, weirs, small ditches, and small rivers. The area is generally 25~150 square meters.

If cement pond is used to raise eel and loach, alkali removal treatment must be carried out before seedling release; if soil pond is used for cultivation, the soil is required to be hard and the bottom of the pond is compacted. Pool depth 0.8~1.5 meters, whether cement pool or soil pool, should be filled in the bottom of the 30 cm layer of fertilizer mud, containing more organic matter fertilizer mud is the best, so conducive to eel and loach burrowing. When the pool is built, the water inlet and outlet shall be set, and the water depth shall be kept at 15~20 cm. The water inlet and outlet should be tied up with fish net to prevent eel and loach from escaping.

Disinfect the culture pond thoroughly with quicklime about 10 days before seedling release, drain the pond water 3-4 days before seedling release, and then inject new water.

Choose polyethylene mesh with dense mesh to make net cage. The mesh size should not run eel and loach and be conducive to the exchange of water inside and outside the cage. Single box area does not exceed 20 square meters, specifications are generally 5 meters to 7 meters long, 2 meters to 3 meters wide, 1.5 meters to 2 meters high.

The net cage is fixed by bamboo poles along the pond, the mouth of the net cage is 0.5 m ~0.6 m above the water surface, the distance between the net cages is 1.5 m, and the total area of the net cage does not exceed 10% of the pond area. 7 - 10 days before stocking, the new net cage is soaked in water, and a layer of algae biofilm is attached to the surface of the net coat to avoid scratching the eel body. The soil treated by insolation or disinfection is put into a net cage with a thickness of about 0.2 meters, so that eel and loach can dive into the soil for winter. Transplant Alternanthera philoxeroides in the cage, covering 70%~80% of the cage area.

2. Select eel and loach seedlings and stock them reasonably.

Seedling is the key to the success of eel and loach breeding. It is better to use artificially cultivated and domesticated dark yellow big spotted eel or golden small spotted eel seedlings, not to use variegated eel seedlings and eel seedlings that have not been domesticated. The appropriate size of eel seedlings is 50-80 per kilogram, too small for poor feeding and low survival rate. The stocking density is generally 1-1.5 kg per square meter, and the eel seedlings are put in the proportion of 1:10 after 20 days of stocking. Loach had better be artificially bred with high survival rate.

Before stocking eel and loach seedlings in ponds, stock seedlings according to the conventional culture requirements. Eel and loach seedlings can be stocked from April to November. The specification of eel species is about 20g/tail. The specifications of eel in the same cage shall be neat as far as possible to avoid mutual cannibalism.

As early as possible stocking, in order to improve the box specifications. 2 kg of eel and 0.5 kg of loach with the stocking specification of 25 g per square meter of net cage, or 3~4 kg of eel and 1 kg of loach with the stocking specification of 50 g. 3-5 days before breeding, water peanut and water body are disinfected with bleaching powder aqueous solution. The fry of eel and loach can be disinfected by soaking in 10ppm methylene blue aqueous solution for 10-15 minutes or in 20ppm potassium permanganate aqueous solution for 5-10 minutes, or in 3%-4% saline solution for 3-5 minutes.

III. Feeding compound feed

First install the feed table, feed table with wood or plastic plate is OK, the area according to the size of the pool self-determined, 5 cm lower than the water surface. Don't feed for the first 3 days after feeding eel seedlings, let eel adapt to the environment, and feed from the fourth day. The best feeding time was around 7:00 p.m., when the feed intake was highest. Artificial feeding of ricefield eel to compound feeds-based, appropriate feeding some small fish, shrimp, earthworms, maggots, snails, mealworms, silkworm pupae, pig blood and animal viscera and other fresh feed.

Domesticated eel, compound feed and earthworm are its favorite feeds. The method comprises the following steps of: adopting artificially cultivated dark yellow large-spotted eel seedlings, feeding the rice field eel seedlings with compound feed, feeding the rice field eel seedlings 1 - 2 times a day according to 3 - 5 percent of the body weight of the rice field eel (depending on the weather and the water temperature), adopting the principle of timing and ration, and feeding 20g rice field eel seedlings to grow to 200 - 300g in one year.

Loach in the pond mainly to eel feces and eat endless eel feed for food, but also through the improvement of water quality to solve a part of loach natural reproduction fast, pond loach ratio greater than 1:10, feed bran once a day. Feeds should be small at first and gradually increased later.

When the eel is cultured artificially, it is better to put a certain proportion of loach after the domestication work is finished, so as to achieve mutual benefit symbiosis between eel and loach and create good economic benefits. Because loach and eel feeding habits are different, the ability to accept compound feed is different.

Loach can adapt almost without training, while eel needs to undergo a period of forced training to adapt. When training, it is often that eel has not opened its mouth to feed, loach has swept it away, thus affecting the training time of eel, even making it fail. Loach is active and swims up and down when feeding, which makes the water fluctuate greatly, so that part of the feed is lost into the water, polluting the water quality, affecting the utilization rate of compound feed, thus prolonging the domestication time.

IV. Feeding management

The growing season of eel and loach is from April to November, among which the peak season is from May to September. During this period, the management should be "diligent" and "fine", that is, frequent patrol pool, diligent management, and timely solution of problems found. Insist on checking the box in the morning and evening to prevent escape, rat prevention, theft and flood prevention. Remove the overgrown peanuts in the box in time to prevent them from growing out of the box and causing eel and loach to escape. After November, if there is no soil layer in the box, the water peanut can be thickened to 0.3 meters, and then pressed with heavy objects to let eel and loach hide in it for winter.

Carefully observe the growth state of eel and loach in the pond, so as to adopt corresponding measures in time. The habits of eel and loach are to lie down by day and come out at night. Keep the water quality fresh, PH value between 6.5-7.5, water level appropriate.

V. Prevention of eel disease

Always sprinkle the whole pool with 1-2ppm bleach powder, and regularly use copper sulfate to prevent diseases. Because once the eel disease, the treatment effect is relatively poor, so prevention is more important than cure.

Loach and eel in the breeding pond together is helpful to eel, loach likes to move up and down, but also eat debris in the water body, can play a role in purifying water quality and oxygenation. Many people say that eel will not get sick, no disease first prevention, want to raise loach and eel friends can try together.