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Artificial inseminating and hatching method of high-viscosity fish eggs

A technology of artificial insemination and artificial hatching, applied in fish farming, climate change adaptation, application, etc., can solve the problems of low fertilization rate and hatching rate, achieve the effect of increasing hatching rate, simple operation process, and improving fertilization rate

Inactive Publication Date: 2011-06-29
MARICULTURE INST OF SHANDONG PROVINCE
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] The invention provides a method for artificial fertilization and hatching of highly viscous fish eggs, which can solve the problem of low fertilization rate and hatching rate caused by multi-layered fish eggs in the prior art
[0005] The invention solves the problem of low fertilization rate and hatching rate caused by highly viscous fish eggs meeting seawater and turning into lumps

Method used

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Embodiment

[0015] A method for artificial fertilization and hatching of highly viscous fish eggs, said method comprising the following steps: artificial fertilization and artificial hatching, characterized in that said artificial fertilization step is: collecting mature fish eggs and placing them on a soft polyethylene mesh When the amount of eggs extruded reaches 200-300g, gently spread the fish eggs to form a single layer of fish eggs, so that there is only one fish egg in the hole of the mesh, and the attention must be light to avoid damaging the fish. eggs, the mesh diameter of the mesh is 2mm, while spreading out the fish eggs, put the semen of the male fish into the glass cup filled with seawater, and use the semen of 2 to 3 male fish for the same batch of fish eggs. For the mixed solution, shake the glass gently to mix the semen evenly, and slowly pour the semen onto the single layer of fish eggs, so that the sperm and eggs can fully contact to improve the fertilization rate;

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Abstract

The invention provides an artificial inseminating and hatching method of high-viscosity fish eggs, capable of solving the problems of the lower inseminating rate and hatching rate caused by multi-layer fish eggs in the prior art. Due to the viscosity of the high-viscosity fish eggs, the high-viscosity fish eggs are inseminated after being shaped to be a flat-layer fish eggs piece which is arranged by means of a single layer and is compactly arranged by a series of artificial methods, so that the fish eggs can not be agglomerate, and the fish eggs inseminating rate is improved since the fish eggs can be abundantly contacted with the sperm when the fish eggs are inseminated; and the flat-layer fish eggs piece which is artificially shaped and compactly arranged by means of the single layer is putted into a hatching net cage to be hatched in an oxygenating way, so that the abundant dissolved oxygen can be obtained when the oosperm is hatched, and the hatching rate of the oosperm is greatly improved.

Description

technical field [0001] The invention relates to fish fertilization and hatching methods, in particular to a method for artificial fertilization and hatching of highly viscous fish eggs. Background technique [0002] Hexagrammos otakii J&S (Hexagrammos otakii J&S) is mainly distributed in the coasts of Shandong and Liaoning in my country. It is commonly known as yellow croaker and yellow stick. Because of its delicious taste and high economic value, it is popular with farmers and consumers in the northern coastal areas of my country. Otaki hexaline broodstock has a low amount of brood eggs, and the eggs are highly viscous eggs with a diameter of 1.8-2.2 mm, which are easy to squeeze and agglomerate. At present, artificial fertilization and hatching techniques for sticky eggs of marine fish are seldom practiced and published, which greatly limits the development of artificial breeding industrialization of high sticky eggs. The rate is relatively low, the fertilization rate i...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 郭文胡发文潘雷菅玉霞高凤祥张少春王雪
Owner MARICULTURE INST OF SHANDONG PROVINCE
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