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Artificial propagation method for acrossocheilus yunnanensis

A technology for artificial breeding and bald lip fish, which is applied in the field of artificial breeding of Yunnan bald lip fish, can solve problems such as undiscovered, and achieve the effects of simple method, high degree of artificial control, and favorable promotion and application.

Inactive Publication Date: 2014-09-17
云南省水产技术推广站
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

After file retrieval, no report identical with the present invention was found in China

Method used

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specific Embodiment approach

[0019] The inventor used the method of the present invention to carry out the research on the artificial reproduction technology of Yunnan smooth-lipped fish in the cold-water fish breeding test base under the Yunnan Provincial Aquatic Technology Promotion Station from January 2012 to July 2013. The breeding parents were domesticated and cultivated by the unit of the present invention The wild Yunnan light-lipped fish fingerlings are selected after 2 to 3 years of cultivation. In the middle and late April of 2013, 20 groups of mature broodstock were selected and injected with artificial induction, and the induction rate reached 90%, realizing the artificial breeding of 187,000 Yunnan smooth-lipped fish. The hatching rate reached 78.3%, and the fry survival rate reached 81.2% in the horizontal swimming stage. The specific implementation is as follows:

[0020] a. Intensive breeding of broodstock

[0021] 4 months before the breeding season, choose the Yunnan light-lipped fish...

example 1

[0028] Incubation method in large plastic pots: large plastic pots (specifications: upper mouth 60cm x lower mouth 51cm x depth 21cm), each pot holds 20L of water, and places 3,000-4,000 fertilized eggs of Yunnan light lip fish. The indoor temperature is controlled at 15-16°C. Shade, let it sit for hatching, change the water twice a day in the morning and evening, and change 1 / 2 of the water each time. When the water temperature is 15-16°C, after 144-192 hours, the larvae hatch and the hatching rate reaches 78.3%. This incubation method is suitable for small-scale incubation.

example 2

[0030] Floating hatching tray micro-flow hatching method: This is suitable for large-scale hatching and can be carried out in hatching workshops. The production method of the floating hatching tray is to use a wooden strip with a thickness of 1cm and a width of 6cm to saw and nail it into a rectangular wooden frame of 50cm×100cm. The floating hatching trays are arranged and floated on the water surface of the hatching pool, and each tray holds 8,000 to 10,000 fertilized eggs, and the fertilized eggs are spread flat on the bottom of the floating hatching trays, just submerged below the water surface. Incubation tank area 6m 2 , The water depth is 0.3 ~ 0.5m, covered with sunshade nets for shading, keeping the micro-flow water and water temperature constant, and the hatching water is exchanged 3 to 4 times a day. When the water temperature is 15-16°C, after 144-192 hours, the larvae of Yunnan light-lipped fish are hatched, and the hatching rate reaches 78.3%.

[0031] The larv...

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Abstract

The invention relates to an artificial propagation method for acrossocheilus yunnanensis, and belongs to the technical field of fish farming. The artificial propagation method includes the steps of intensive parent fish cultivation, artificial parturition hastening, artificial insemination and artificial incubation. The artificial propagation method has the advantages that mature propagation parents can be cultivated stably under environmental conditions with low water temperatures, and the method is applicable to artificial propagation of the acrossocheilus yunnanensis in highland cold water environments; artificial control degree is high in the process of propagation of the acrossocheilus yunnanensis, entire artificial medicine parturition hastening, artificial insemination and artificial incubation are realized, propagation process is stable and controllable, and the method is applicable to large-scale fry breeding according to needs; the method is simple, efficient and beneficial to popularization and application.

Description

technical field [0001] The invention relates to an artificial propagation method of Yunnan light-lipped fish, which belongs to the technical field of fish breeding. Background technique [0002] Yunnan light-lipped fish (Acrossocheilus yunnanensis) belongs to Cyprinidae, Cyprinidae, Acrossocheilus subfamily, and the genus Acrossocheilus. It is a small and medium-sized fish with important ecological value and certain economic value. Distributed in the Pearl River system, the upper reaches of the Yangtze River system and their tributaries, it is a unique fish in my country, and its model origin is in Yunnan. It has the characteristics of adapting to the cold water environment of the plateau, and its individuals are relatively large (common individuals are 20-30cm long). In recent years, due to the construction of water conservancy projects, river pollution, overfishing and other reasons, the germplasm resources of Yunnan smooth lip fish have decreased sharply, and it is diffi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 石永伦华泽祥陈俊田树魁杨辉明龙斌杨其琴
Owner 云南省水产技术推广站
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