The method of raising eel by raising Loach in net cage

When a net cage is set up to raise Misgurnus anguillicaudatus in a pond with good water quality, the upstream and downstream channeling of Misgurnus anguillicaudatus is beneficial to increase oxygen and prevent Monopterus Albus from entangling with each other and death. This breeding mode has the advantages of convenient management, quick effect and high benefit.

1. Environmental conditions.

It is required that the water quality of the pond is pollution-free, the water level is stable, the water depth is more than 1 meter, and the area is 1 ~ 20 mu.

two。 Cage setting.

The polyethylene mesh with dense mesh is selected to make the cage. The mesh size is based on the principle that eels and loaches do not run and are conducive to the exchange of water bodies inside and outside the cage. The area of each case is not more than 20 square meters. the specifications are generally 5 meters ~ 7 meters long, 2 meters ~ 3 meters wide and 1.5 meters ~ 2 meters high. The cage is fixed with a bamboo pole along the edge of the pond, the mouth of the box is 0.5 to 0.6 meters above the water surface, the distance between the boxes is 1.5 meters, and the total area of the cage does not exceed 10% of the area of the pond. 7 ~ 10 days before stocking, soak the new cage in water and attach a layer of algae biofilm to the surface of the net coat so as not to scratch the eel. Put the exposed or sterilized soil into the cage, about 0.2 meters thick, so that eel and Loach can sneak into the soil in winter to survive the winter. Transplanting water peanuts in the box, the coverage accounts for 70% to 80% of the cage area.

3. The seedlings are released.

Before releasing eel and Loach in the pond, the seedlings were released according to the requirements of conventional culture. Eel and Misgurnus anguillicaudatus can be released from April to November. The size of eel species is about 20 grams per tail. The specifications of rice field eel in the same cage are as neat as possible to avoid eating each other. As early as possible stocking, in order to improve the specification of the box. Each square meter net cage stocking specification is 25 grams of rice field eel 2 kg, Loach 0.5 kg, or 50 grams of rice field eel 3 kg ~ 4 kg, Loach 1 kg. From 3 to 5 days before stocking, water peanuts and water bodies in the box were disinfected with bleach solution. Eel and Misgurnus anguillicaudatus seedlings can be soaked in methylene blue solution of 10ppm for 10-15 minutes or 20ppm potassium permanganate solution for 5-10 minutes, or 3%-4% saline solution for 3-5 minutes.

4. Feed.

Fresh feed such as small fish, shrimp, earthworms, fly maggots, silkworm pupa, pig blood and animal viscera is the best. Misgurnus anguillicaudatus feed can be partly solved by improving water quality and needs to be fed properly. The amount of feed should be less at first, and then increase gradually. Feed twice a day, once at 8: 00 a.m. to 9: 00 a.m. and once at 5: 00 p.m. to 6: 00 p.m. During the breeding period, the daily feeding amount is generally 8%-10% of the total body weight of eel and Loach, the feed should be fresh and the quality should be relatively stable. Every 10 square meters of cage set up 1 ~ 2 tables, the table is 0.2 meters from the water, the feed should be put on the table.

5. Daily management.

Adhere to the morning and evening inspection of the box, anti-escape, anti-rodent, anti-theft, flood control, timely removal of overgrown water peanuts in the box to prevent it from growing out of the box resulting in the escape of eel and Loach. After November, if there is no soil layer in the box, the water peanut can be thickened to 0.3 meters, and then sunk with heavy weight, allowing eel and Loach to lurk through the winter.