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A kind of artificial large-scale hatching method and system of tibetan bipalpis roe

A technology of double whiskers and fish eggs, which is applied in fish farming, climate change adaptation, application, etc., can solve the problems of difficult to control the water flow rate of the incubator, unstable water flow speed, and poor up and down rolling effect, saving manpower and financial resources, The effect of stable water flow speed and increased quantity

Active Publication Date: 2022-06-17
西藏自治区农牧科学院水产科学研究所
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

This hatching method is not suitable for the choice of the time point of the transfer hatching; the water flow rate of the incubator is not easy to control, the flow rate is high, and the mortality rate of the fish eggs used for the hatching of the eggs of the two-haired beard fish is high; the water flow rate in the device Unstable, the effect of rolling up and down is poor; fish eggs are easy to overflow from the drain along the water flow

Method used

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  • A kind of artificial large-scale hatching method and system of tibetan bipalpis roe
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  • A kind of artificial large-scale hatching method and system of tibetan bipalpis roe

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Effect test

Embodiment 1

[0036] An artificial large-scale hatching method for fish eggs of the Tibetan mussels. From before the embryonic formation stage of the fertilized eggs of the double-skinned mussels, the fertilized eggs are placed in the hatching frame to incubate in running water; the fertilized eggs develop to the embryonic stage. After that, the dead eggs are removed, and the fertilized eggs are transferred to the incubator to hatch.

Embodiment 2

[0038] This embodiment is on the basis of Embodiment 1:

[0039] The embryonic formation period refers to the water temperature of 12° C. and 108 hours from the time when the fertilized egg is obtained.

[0040] In the whole incubation process, the hatching frame takes up 35% of the hatching time, and the incubator takes up 65% of the hatching time.

Embodiment 3

[0042] This embodiment is on the basis of Embodiment 1:

[0043] The incubator incubation includes the following steps:

[0044] A. The external water source enters the incubator to maintain continuous water supply;

[0045]B. After entering the embryonic formation stage, the fish eggs of the double-skinned mussels are placed in the incubator to hatch, and the fertilized eggs are rolled up and down in the incubator;

[0046] C. The egg membrane and dead eggs after emergence float on the water surface, and are discharged from the overflow port on the upper part of the fish egg incubator along the water flow;

[0047] D. Take out the fish egg incubator, and pour the fry at the bottom of the incubator into the fry cultivation pool to complete the collection of fry.

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Abstract

The present invention provides an artificial large-scale hatching method for the roe of the Tibetan bifidus cereus, the artificial large-scale hatching method, which is characterized in that the fertilized eggs are placed in the hatching frame for hatching in flowing water before the embryo formation period of the fertilized eggs ; After the fertilized eggs develop to the stage of embryonic formation, the dead eggs are removed, and the fertilized eggs are moved into the incubator to hatch. The hatching method has a high survival rate of hatched eggs and high production efficiency, and can be produced on a large scale in Tibet.

Description

technical field [0001] The invention belongs to the technical field of fish culture, and in particular relates to an artificial large-scale hatching method for fish eggs of the Tibetan double-bearded mussels. Background technique [0002] Ptychobarbus dipogon Regan is a cold-water fish of the family Cyprinidae native to the middle reaches of the Yarlung Zangbo River. It is not only an excellent scientific research material for studying the phylogeny, geological changes, life evolution and adaptation mechanism of extreme environments of Cyprinids. Moreover, it is a valuable economic fish in the distribution area, and has a high value of aquaculture and development. Under the selective pressure of the local harsh aquatic ecological environment, the basilis serrata has gradually evolved into a type of fish with partial K-selection, which has ecological countermeasures such as long lifespan, delayed growth, older sexual maturity, and low spawning. These ecological countermeasur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/17
CPCA01K61/17Y02A40/81
Inventor 曾本和周建设王金林林少卿周朝伟
Owner 西藏自治区农牧科学院水产科学研究所
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