Method for high-density net cage monopterus albus breeding in vinyl house

Abstract

The invention relates to a method for high-density net cage monopterus albus breeding in a vinyl house and belongs to the technical field of fishery science application. The method is characterized in that a breeding net cage, a micro flowing water system and a temperature rising facility used at low temperatures are arranged in the built vinyl house so that the water level and the water temperature in a breeding system can be maintained 0.5-0.8 m and 25-28 DEG C respectively, and monopterus albus can be bred in the breeding net cage. The put volume of fries of the monopterus albus is 5-6 kg / m<2>, feed feeding the monopterus albus is a feed mixture of animal feed and compound feed special for the monopterus albus, and the feed amount a day is 8-12 percent the weight of the monopterus albus in the net cage. According to the method for high-density net cage monopterus albus breeding in the vinyl house, high-density breeding of the monopterus albus can be achieved, the breeding time of the monopterus albus is prolonged by five months or more each year, the survival rate of the monopterus albus is more than 95 percent, compared with a pond net cage breeding manner, the yield per unit area is improved by 5-8 times, and the method has the advantages that the breeding density is large, the monopterus albus grows fast and is high in quality, cost is low, and catching is convenient.

Description

Technical field: [0001] The invention relates to a method for high-density breeding of eel in net cages in plastic greenhouses, belonging to the technical field of fishery science applications. Background technique: [0002] Rice field eel is one of the main cultured freshwater fishes in my country. Its culture has developed rapidly in recent years. Its main culture areas are located in Hubei, Hunan, Anhui, Jiangxi, Jiangsu, Zhejiang and other provinces. At present, rice field eel farming is mainly based on pond cage farming. This farming method occupies a large area and is affected by changes in natural environment temperature. The annual breeding time is only 5 to 7 months. The breeding area is limited to the area south of the Yellow River in China. And the disadvantages such as relatively low breeding output can not satisfy the perennial demand of the expanding domestic and foreign markets. The method for cultivating ricefield eels at high density in net cages in a plast...

AI Technical Summary

Problems solved by technology

At present, rice field eel farming is mainly based on pond cage farming. This farming method occupies a large area and is affected by changes in natural environment temperature. The annual breeding time is only 5 to 7 months. The breeding area is limited to the area south of the Yellow River in China. And the disadvantages such as relatively low breeding output cannot meet the perennial demand of the growing domestic and foreign markets.