Novel cultivation technique of rice field eels

Abstract

Provided is a novel cultivation technique of rice field eels. During two years from young eel cultivation to adult eels, a cement pool cultivation method is used in the first year, and a net cage cultivation method is used in the second year. The undomesticated young eels are caught, the weight of each young eel is 50-80g, the weight of each adult eel is 150-200g, cement pool cultivation is carried out from April to August each year and changed into net cage cultivation from March to April in the first year, and the adult eels are sold from October to December in the second year. A cement pool is composed of a plurality of small pools, wherein each small pool is 3 meters wide, 0.8 meter deep and 4-5 meters long. A water drainage valve and a water inlet valve are respectively arranged on one side of the cement pool for form an opposite angle, an escape-proof net is arranged on a water drainage pipe opening, and a layer of plastic film is covered on the pool wall. The technique has the advantages that the cement pool cultivation is used in the first year so that feeding and moving conditions of the rice field eels can be conveniently observed, and domestication is good; the cement pool cultivation is good in freshness and oxygen dissolving property, and only needs water supplement at regular intervals; eel fry are successfully domesticated in the cement pool, and can adapt and feed immediately after being moved to a net cage; and the growth cycle is greatly prolonged, and the weight gain proportion is large.

Description

technical field [0001] The invention relates to the field of aquaculture, in particular to a new technology for eel cultivation. Background technique [0002] Swamp eel, also known as eel or long fish, has tender meat, delicious taste, less bone spurs, rich in protein, a variety of vitamins and minerals. Swamp eel also has important medicinal functions, such as invigorating qi, nourishing blood, reducing inflammation, and disinfecting. , expelling wind and dehumidification and other effects. At present, it is increasingly favored in the domestic and foreign markets, and the supply is in short supply. Rice field eel has strong adaptability, resistance to low oxygen and hunger, and is easy to transport. Its breeding method is simple, low in cost, and high in economic benefits, and is suitable for small-scale family farming. In the next 5 years listed by the State Information Center, 6 farming projects with great development prospects include rice field eel farming. In addit...

AI Technical Summary

Problems solved by technology

The wild eel resources are limited. With the improvement of people's living conditions, the demand for eels has risen sharply. Wild fishing is difficult to meet the needs of farms. This requires large-scale artificial breeding of rice field eels.

Since the artificial breeding of eels has not been completed, all eels are caught in the wild. Wild eels live in the natural state for a long time, and mainly feed on aquatic plankton that prey on live fish, live shrimps, tadpoles, and water earthworms. It is difficult to achieve these conditions in large-scale farming, so it is necessary to domesticate the eel to eat and artificially formulate the feed. It is difficult for the eel to adapt to the environment when it has just entered the artificial pond. , so it is difficult for small eel species to reach the market specifications in the first year, and they must be bred in the second year before they can be marketed