A method for artificial reproduction and hatching of fish eggs

A technology for artificial reproduction of soft spines and naked clefts, which is applied in the field of fish artificial reproduction and fish egg hatching, can solve problems such as lack of resources, reduce manpower and management requirements, facilitate operation, and increase controllability Effect

Active Publication Date: 2015-08-05
KUNMING INST OF ZOOLOGY CHINESE ACAD OF SCI
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AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a method for the artificial reproduction and egg hatching of soft spiny sarcophagus with a rate of up to 93.8%, a fertilization rate of up to 89.6%, and a hatching rate of up to 95%, because of the lack of resources caused by environmental problems, provide a solution

Method used

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Embodiment Construction

[0015] At 21:00 on May 31, 2013, according to the following method, the ratio of male and female broodstock was 1:3 as a group, and 8 groups of broodstock were selected to inject oxytocic agents. At 17:00 on June 1, 2013, artificial insemination was performed on 30 broodstock that had successfully induced spawning, and a total of 32,700 fertilized eggs were obtained, with a fertilization rate of 89.6%. After the hatching was over, a total of 31,070 fry were obtained, with a hatching rate of 95%. The specific process is as follows:

[0016] a. Broodstock selection: The selected broodstock were all collected in Jinsha River and Yalong River in 2006, with the weight range of 0.62-0.98kg; the broodstock collected from the wild were tested in ponds successively. , domesticated and cultivated; at 16:00 on May 28, 2013, 50 healthy male and female broodstock were selected and temporarily raised in a tempered glass tank with a length of 200 cm, a width of 100 cm, and a height of 100 cm...

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Abstract

The invention relates to an artificial propagation and roe incubation method for freshwater fishes, in particular to an artificial propagation and roe incubation method for schizopygopsis malacanthus, and belongs to the technical field of artificial propagation and roe incubation of fishes. The artificial propagation and roe incubation method for schizopygopsis malacanthus mainly comprises the steps of parent fish selection, spawning induction, artificial impregnation, roe incubation and fry raising. The artificial propagation and roe incubation method for schizopygopsis malacanthus has the advantages that the fertilization rate can reach 89.6%, the incubation rate can reach 95%, and the problem of resource scarcity caused by environmental problems is resolved; the fry incubation process is convenient to conduct, the controllability is improved, and requirements for manpower and management in the incubation process are lowered.

Description

Technical field: [0001] The invention relates to a method for artificial propagation and egg hatching of freshwater fish, in particular to a method for artificial propagation and egg hatching of soft-spined fish, which belongs to the technical field of fish artificial propagation and egg hatching. Background technique: [0002] Schizopygopsis belongs to Cypriniforms, Cypriniformes, Cyprinidae, Schizothoracinae, and Schizopygopsis Steindachner, commonly known as earthfish and smallmouth fish. The soft-spined schizophrenia is a cold-water fish that grows slowly. It mostly lives in the wide valleys of plateau rivers with clear water quality and feeds on algae or aquatic insects. It is mainly distributed in the Jinsha River and Yalong River water systems in the upper reaches of the Yangtze River, and its distribution height can reach 3000m-4000m above sea level. The individual weight of soft spines naked schistos is generally 0.5kg-1kg, and when it is larger, the weight can rea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 潘晓赋杨坤凤杨君兴
Owner KUNMING INST OF ZOOLOGY CHINESE ACAD OF SCI
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