Misgurnus anguillcaudatus loop net cage propagation method

Abstract

The invention belongs to the technical field of aquaculture, and in particular relates to a technology for allowing misgurnus anguillcaudatus to propagate and lay eggs in a net cage arranged in a hatching loop and allowing fertilized eggs to fall into the hatching loop from the cage to directly hatch in the hatching loop. An integrated large net cage or a plurality of independent large net cages are placed in the hatching loop and used as a site for mating and egg laying of parent misgurnus anguillcaudatus injected with a sexual maturity promoting agent, the net cages are moved out after egg laying is finished, and meanwhile, the parent misgurnus anguillcaudatus which has laid eggs is moved out. The misgurnus anguillcaudatus eggs fall into the loop from the meshes and directly enter the hatching process. By the method, the parent misgurnus anguillcaudatus can be effectively prevented from swallowing spawns and is difficultly hurt, and the misgurnus anguillcaudatus eggs have low loss and good propagation effect. By the method, the transfer process of the eggs is saved, the labor intensity is greatly reduced, and the work efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and specifically relates to a method for allowing loach to breed and lay eggs in a net cage arranged in a hatching loop, and the fertilized eggs fall from the box into the hatching loop, and are directly carried out in the hatching loop on the spot. Incubation technology. Background technique [0002] Loach (Misgurnus anguillcaudatus) belongs to Cyprinidae, Cyprinidae, Loachidae, Anguillinae, and Loach genus; Paramisgurnus dabryanus Sauvage belongs to Cyprinidae, Cyprinidae, Loachidae, and Paraloach genus. Under normal circumstances, it is customary to collectively refer to paraloach and loach as loach. Loach is widely distributed in Japan, Korea, China and Southeast Asia. Loach has high nutritional value and medicinal value, and is known as "ginseng in water". Loach has always been popular in domestic and foreign markets. In recent years, the export volume of loach has increased year by y...

AI Technical Summary

Problems solved by technology

Because the loach body is small and smooth, it moves quickly, but it is easy to cause damage to loach eggs and parent loach during the process of transferring the parent loach

The spawning of parent loach will last for a long time, and the violent swimming and stirring of parent loach at this stage will cause most of the eggs to slip, making it difficult to increase the hatching rate of loach eggs hatched by fish nests

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