Collecting and separating assembly device for fish eggs and collecting method

Abstract

The invention discloses a collecting and separating assembly device for fish eggs and a collecting method and belongs to the technical field of fish breeding. The device comprises an egg laying pond and an egg separating assembly, wherein the egg laying pond has buoyancy and an egg retrieval pump is suspended at the bottom of the egg laying pond through a depth adjusting member; an egg retrieval object stage is arranged beside the egg laying pond; the egg separating assembly is arranged on the egg retrieval object stage and is connected with the egg retrieval pump through an egg retrieval pipe; the egg separating assembly comprises a cylindrical egg separating shell; the egg separating shell is fixedly arranged on the egg retrieval object stage in a manner that the axis is perpendicular toa horizontal plane; egg inlets are arranged at the center of the bottom round cylindrical surface of the egg separating shell and the egg separating shell is connected with the egg retrieval pump through the egg retrieval pipe; and a settling egg discharge pipe is also connected with the bottom round cylindrical surface of the egg separating shell. According to the collecting and separating assembly device, rapid collection of the fish eggs is achieved, buoyant eggs are rapidly separated from demersal eggs by using a centrifuge method and the separation rate of the fish eggs is effectively improved. Meanwhile, relevant data, such as the number of the fish eggs, the activity of the fish eggs and the density of the fish eggs are acquired in the fish egg collecting process, and the data accuracy is high.

Description

technical field [0001] The invention belongs to the technical field of fish reproduction, and in particular relates to a fish egg collection and separation component device and a collection method. Background technique [0002] The four major carps refer to artificially raised herring, grass carp, silver carp and bighead carp. Since the 1950s, Chinese aquatic science and technology workers have overcome the artificial reproduction technology of the four major carps, completely solving the problem of relying on river fishing for aquatic seedlings. The passive situation has promoted the overall development of the aquaculture industry. When carrying out artificial reproduction, it is necessary to catch the four major domestic carps from the broodstock breeding pond and then put them into the spawning pond for induced labor and breeding. Among them, when the induced labor is performed, the female fish and the male fish need to be injected with oxytocic agents respectively, and t...

AI Technical Summary

Problems solved by technology

When carrying out artificial reproduction, it is necessary to catch the four major domestic carps from the broodstock breeding pond and then put them into the spawning pond for induced labor and breeding. Among them, when the induced labor is performed, the female fish and the male fish need to be injected with oxytocic agents respectively, and the female Fish are injected with two injections and male fish with one injection to complete the work of induced labor. After the fish are entwined in the spawning pond, the mixing of sinking eggs and floating eggs in the spawning pond is not conducive to hatching separately. However, the existing technology There is no equipment for separating fish eggs, which only relies on natural sedimentation and separation of fish eggs, which is not efficient

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