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

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...

Examples

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.

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...

Examples

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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