Isolation box for fish propagation

Abstract

The invention relates to an isolation box for fish propagation. The isolation box comprises a box body provided with a draining opening, an upper isolation net, a rolling shaft, a sliding plate and a driving mechanism, wherein the upper isolation net is transversely arranged in the middle part of the box body and can be used for preventing bred fish from moving to the lower part of the box body; the rolling shaft is detachably arranged in the box body and positioned below the upper isolation net, wherein the rolling shaft is hollow, and the surface of the rolling shaft is a frosted surface and provided with a plurality of through holes of which the diameter is less than fish eggs; the through holes are formed at intervals; a water inlet through which water is fed into the rolling shaft is formed in the rolling shaft; the sliding plate is obliquely arranged between the isolation net and the rolling shaft; the tail end of the sliding plate is correspondingly arranged above the rolling shaft; the driving mechanism is in driving connection with the rolling shaft and can drive the rolling shaft to rotate. According to the isolation box, the fish eggs can be attached on the through holes in the surface of the rolling shaft; the residual foods and the excrement can continuously downwards fall down to reach the bottom part of the box body as the rolling shaft rotates, so that the fish eggs can be conveniently separated from the residual foods and the excrement; the fish eggs can be quickly collected without damage.

Description

technical field [0001] The invention relates to the technical field of fish breeding equipment, in particular to a fish breeding isolation box which is convenient for collecting fish eggs. Background technique [0002] In recent years, with the improvement of the national economy and technological level, industrial aquaculture has developed into one of the mainstream models of mariculture in China, and occupies an extremely important position in my country's mariculture industry. For aquaculture, cultivating parents with excellent traits, obtaining high-quality eggs, and then breeding healthy and lively commercial seedlings are the foundation for the stable and sustainable development of the entire aquaculture industry. At present, in actual production, most aquaculture ponds cannot isolate the cultured fish and fish eggs in time, so there is a problem that the aquaculture fish swallows the fertilized eggs, and the fish in the aquaculture pond cannot be separated in time, wh...

AI Technical Summary

Problems solved by technology

[0004] The fish nest with the above structure can effectively prevent broodstock from devouring fertilized eggs, but it still needs to separate and collect fish eggs separately, which is extremely inefficient and leads to a complicated workload for farmers; Usually, there are serpentine tube siphon and sieve silk net for filtration and collection, directly use dip net for manual net collection in the culture pond, use sieve silk net to pull the net for collection in the water body of the culture pond, and add sieve silk net at the outlet of the pond bottom The method of collecting eggs above obviously has the problems of large manpower consumption and low collection efficiency; at the same time, due to the mechanical stress of different degrees in the collection process of the above collection methods, it is easy to cause mechanical damage to the eggs, thus directly affecting the quality of the eggs. quality and hatchability

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