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Artificial propagation method of platypharodon extremus

A technology of artificial reproduction and pharyngeal toothfish, applied in fish farming, reproductive cells, embryonic cells, etc., to achieve the effect of restoring resources

Inactive Publication Date: 2010-09-22
GANSU RES INST OF FISHERIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Artificial reproduction is an effective way to save the Plagodontida from extinction, but so far there is no news of successful artificial breeding of the Plagodontosa, nor is there any literature showing that anyone has done it had a similar job

Method used

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  • Artificial propagation method of platypharodon extremus

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Embodiment Construction

[0014] The following are examples of the present invention.

[0015] 1.1 Test location

[0016] Relevant experiments were carried out at the applicant's test base in Linxia City, Gansu Province, which is located on the eastern edge of the Qinghai-Tibet Plateau at an altitude of nearly 2000m. The hatching water is spring water, the temperature of the water varies from 5 to 18°C ​​every year, the water quality is calcium carbonate type, and the dissolved oxygen in the water body is 12 mg / l, which is clear and pollution-free.

[0017] 1.2 Source of broodstock

[0018] The wild platypharyngeus that has been artificially domesticated is used, and the sexually mature fish are selected as the experimental broodstock, and the ratio of male to female is 1:1.

[0019] 1.3 Broodstock selection

[0020] The abdomen of sexually mature female fish is enlarged and soft, the anal fin is thickened, and stars are distributed along the direction of the fin ray bone; the anal fin ray bone of m...

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Abstract

The invention discloses an artificial propagation method of platypharodon extremus. The method comprises the following steps: selecting broodstock of the platypharodon extremus which are artificially domesticated and reach the sexual maturity, and adopting the dry guide method for carrying out artificial insemination; adopting a cage for incubation with running water, wherein the water depth placed by the cage is 10cm, water for incubation is ordinary natural water, the dissolved oxygen is not less than 7mg / l, the incubation water temperature is 7-20 DEG C, the pH value is 7.5-8, and 2-3 layers of eggs are placed in the cage; and finishing the whole incubation process till yolk sacs of larvae are absorbed completely and floating. The adoption of the artificial propagation method can effectively recover the upstream platypharodon extremus resources of the Yellow River.

Description

technical field [0001] The invention relates to an artificial reproduction technology of fish, more specifically, the invention relates to an artificial reproduction method of the polefish. Background technique [0002] Platypharodon extremus is a unique monotypic genus in my country. Its taxonomic status: Cypriniformes, Cyprinidae, and Schizothoracinae. It is only distributed in the upper plateau of the Yellow River. wide valley river section. Due to the deterioration of the living environment and the overfishing of the polar pharyngeal toothfish, coupled with its small population and narrow distribution area, it belongs to the species living in the alpine zone, with short growth period, slow growth rate, and late sexual maturity age. It has gradually shrunk to the depths of the sparsely populated plateau meadow. Due to the drastic reduction in the resources of the polar pharyngeal toothfish, it has been included in the "China Red Data Book of Endangered Animals-Fish", and...

Claims

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Application Information

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IPC IPC(8): A01K61/00C12N5/0735
CPCY02A40/81
Inventor 张艳萍娄忠玉焦文龙秦懿虎永彪周蓉史小宁王太
Owner GANSU RES INST OF FISHERIES
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