A method for self-propagation, self-cultivation and self-support of rice field eel

Abstract

The invention relates to a finless eel self-reproducing, self-breeding and self-cultivating mode. The mode comprises a first step of finless eel simulated ecological breeding and cultivating by means of net cages, and a second step of commercial finless eel breeding. The first step comprises six processes of parent finless eel cultivation and selection; breeding net cage arrangement; parent finless eel throwing; parent finless eel feeding and management; fry cultivating net cage arrangement; and fry collecting, cultivating and binning for overwintering. The second step comprises four processes of first-instar finless eel throwing at right time according to required density; breeding net cage arrangement; finless eel feeding and management; and parent finless eel preparation. According to the invention, all the processes are self-sufficient as fries are bred by people, so that a phenomenon that the fries which are bought from the market with high price have different qualities is avoided; the fries can be thrown in advance, so that the cultivation period is prolonged, and the finless eel can be cultivated from May to October; and furthermore, feeding habitat conversion is not required for artificial fries, so that stress responses caused by feeding training and environment changing are avoided, and the stocking success rate is improved.

Description

technical field [0001] The invention belongs to the technical field of fishery science application, and in particular relates to a method for ecologically breeding seedlings and cultivating rice field eels in net cages. Background technique [0002] Swamp eel is one of the main freshwater fishes in my country. It has been popular among consumers for a long time due to its edible and medicinal effects. Moreover, due to the high and stable sales price of rice field eels and good breeding benefits, rice field eel farming has developed rapidly. In 2014, the national rice field eel farming output reached 360,000 tons, and the output value reached 25.2 billion yuan. "Small species" rice field eels have become a big industry. The main reason for the current decline in the efficiency of rice field eel farming is the seed problem: (1) rice field eel seed basically depends on wild seed, and the amount of wild seed resources is easily affected by climate and environmental changes, and ...

AI Technical Summary

Problems solved by technology

The main reason for the current decline in the efficiency of rice field eel farming is the seed problem: (1) rice field eel seed basically depends on wild seed, and the amount of wild seed resources is easily affected by climate and environmental changes, and the quantity and quality are difficult to guarantee; (2) Due to the highly concentrated stocking season of ricefield eel seedlings, short-term demand is tight, and seed prices are rising; (3) ricefield eel seedlings have been artificially reproduced in imitation ecology, but due to the natural attributes of this species-the amount of fecundity is not high, reproduction Due to factors such as a long period of time, it is difficult to popularize and apply the large-scale propagation technology of eel seedlings

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