Shrimp egg in-vitro incubation device and using method thereof

Abstract

The invention provides a shrimp egg in-vitro incubation device and a using method thereof. The shrimp egg in-vitro incubation device comprises a rack, an upper water tank, a lower water tank, net bags, a bucket and a submersible pump, the two ends of the lower water tank are communicated with a water inlet and a water outlet respectively, and the upper water tank is nested in the lower water tankand horizontally and linearly moves back and forth at a fixed frequency in the lower water tank; the net bags are fixedly nested on the bottom face of the upper water tank in a matrix arrangement manner and located in a gap between the bottom of the upper water tank and the bottom face of the lower water tank, the bucket is fixedly installed at one end of the rack, a bucket opening is located under the water outlet, and the submersible pump is fixedly arranged in the bucket and communicated with the water inlet; and the upper water tank is arranged to horizontally and linearly move back and forth in the lower water tank in a reciprocating manner at the set amplitude and frequency, the swing action of appendages in the female shrimp incubation process can be scientifically simulated, shrimpegg death caused by oxygen deficit is effectively prevented, the net bags are arranged in the upper water tank in the matrix manner, and newly-incubated shrimp eggs can be conveniently collected andmanaged in a classified manner.

Description

technical field [0001] The invention relates to the technical field of shrimp egg cultivation, in particular to an in vitro hatching device for shrimp eggs and a method for using the same. Background technique [0002] At present, the breeding of red claw crayfish mostly adopts the traditional natural hatching of eggs by female shrimp, which has the following disadvantages: [0003] (1) It is difficult to collect shrimp seedlings. Whether it is an earthen pond, a cement pond, or a net cage, the collection of shrimp seedlings is very labor-intensive and has a large loss: [0004] (2) Shrimp seedlings are not neat, and it is very easy for the big ones to bully the small ones, and the young shrimps will be eaten immediately after moulting, resulting in a large loss of temporary breeding and transportation; [0005] (3) Bacterial and fungal infections and parasitic diseases are difficult to prevent and control; [0006] (4) Inbreeding cannot be avoided, resulting in the degrad...

AI Technical Summary

Problems solved by technology

[0003] (1) It is difficult to collect shrimp seedlings. Whether it is an earthen pond, a cement pond, or a net cage, the collection of shrimp seedlings is very labor-intensive and has a large loss:

[0004] (2) Shrimp seedlings are not neat, and it is very easy for the big ones to bully the small ones, and the young shrimps will be eaten immediately after moulting, resulting in a large loss of temporary breeding and transportation;

[0005] (3) Bacterial and fungal infections and parasitic diseases are difficult to prevent and control;

[0006] (4) Inbreeding is unavoidable, resulting in the degradation of breed quality

[0008] (1) The grading of shrimp eggs is inaccurate. There will be a large error in grading the development of eggs only by naked eyes. The completion time of shrimp development may be about 7 days apart, which is extremely unfavorable for the collection and temporary rearing of shrimp;

[0009] (2) The fertilized eggs are placed in the hatching container and hatched by water flow or air flow to increase oxygen. The risk of saprolegnia infection is very high, and the fertilized eggs that die during the hatching process cannot be picked out in time, or the operation of picking out the dead fertilized eggs is relatively difficult. , and the workload is large, which will further cause saprolegnia infection and cause hatching failure

Images