Slow running water circulation type method for cultivating finless eel fries by the aid of grids

A water cycle and grid technology, applied in fish farming, application, climate change adaptation, etc., can solve the problems of low survival rate of aquaculture, low survival rate, and inability to carry out large-scale production, and achieve the effect of good application prospects

Inactive Publication Date: 2015-02-11
YANGTZE UNIVERSITY
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AI Technical Summary

Problems solved by technology

Breeding wild rice field eel seedlings has the disadvantage of low breeding survival rate in production, and the quantity cannot meet the requirements of the rapid development of rice field eel industry
Although the artificial breeding technology of eel seedlings has made some breakthroughs in the near future, the survival rate of artificially hatched eel seedlings from immature eels to large-scale seedlings with a body length of 15-20 cm and a weight of 5-8 g is low, and it is not yet possible large-scale production

Method used

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Embodiment Construction

[0024] Implement the present invention, take the Jianghan Plain area as an example, can carry out according to the following steps:

[0025] (1) Preparation of the cultivation pond:

[0026] The pond for cultivating ricefield eel seedlings is selected near the field of ricefield eel breeding, with an area of ​​1000m 2 Around, the depth of the pool is 1.5m, and the mud at the bottom of the pool is 15cm. 15 days before the juvenile eel seedlings are put in, use 75-100kg quicklime per mu to thoroughly clean the pond.

[0027] (2) Design and installation of circulating micro flow equipment:

[0028] The equipment for cultivating ricefield eel seedlings with microflow circulation includes a water storage tank, a cultivation bucket and a water circulation system;

[0029] The reservoir is built next to a pond with good water quality, and its bottom is at the same level as the top of the cultivation bucket or higher than the top of the cultivation bucket; its volume is more than t...

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Abstract

The invention relates to a slow running water circulation type method for cultivating finless eel fries by the aid of grids, and belongs to the technical field of fishery science application. The slow running water cyclic type method is characterized in that a plurality of cultivation buckets with water circulation systems and a plurality of cylindrical finless eel cultivation grids placed in the cultivation buckets are provided, young finless eels hatched at the same time or in the same size are transported to the cylindrical grids in good time and are cultivated with live feed, and thus, eel fry cannibalism caused by nonuniform individual sizes is effectively prevented. By means of design and installation of slow running water circulation type cultivation equipment, design, manufacture and installation of the finless eel cultivation grids, throwing and cultivating of the young eels and management on the water circulation systems and the grids during cultivation, the survival rate of the finless eel fries can be increased to 90-95% and each fry can reach 8-10g in average after 4-5 months of cultivation of the finless eel fries. The method has the advantages that large high-quality finless eel fries can be provided massively for large-scale finless eel cultivation, and the method has a quite good application prospect.

Description

Technical field: [0001] The invention relates to a method for cultivating ricefield eel seedlings in a micro-current circulating grid, belonging to the technical field of fishery science applications. Background technique: [0002] Rice field eel (Monopterus albus) is one of the famous and high-quality fish that has developed rapidly in recent years in my country. Its farming has spread all over the country, especially in Hubei, Hunan, Anhui, Jiangxi, Zhejiang and other provinces in the middle and lower reaches of the Yangtze River. Rice field eel farming has become a freshwater fish in these areas. One of the leading species in the aquaculture industry. [0003] During the development of rice field eel breeding industry, seedlings are in short supply, and the seedlings put in at present are mainly wild eel seedlings. Breeding wild rice field eel seedlings has the disadvantage of low breeding survival rate in production, and the quantity cannot meet the requirements of the r...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81A01K61/00
Inventor 杨代勤阮国良袁汉文苏应兵陈芳杨小林
Owner YANGTZE UNIVERSITY
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