Artificial breeding method for Triplophysa xichangensis

An artificial reproduction and plateau technology, applied in the field of artificial reproduction of Xichang plateau loach, can solve the problems of the rare artificial reproduction technology of Xichang plateau loach, and achieve the effects of advanced insemination and incubation methods, small ecological space and scientific design.

Inactive Publication Date: 2015-11-18
YANGTZE RIVER FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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Problems solved by technology

[0003] Xichang plateau loach is a unique species in my country, and it is also one of the more important fishes in high-altitude areas of Sichuan Province. The existing work is mainly limited to

Method used

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Experimental program
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Embodiment 1

[0050] The artificial propagation method of Xichang plateau loach, its step is:

[0051] (1) Broodstock selection:

[0052] (a) Among the naturally caught Xichang plateau loach, female and male fish with a body weight of 10-20 g, strong vitality, and no trauma on the body surface were selected as broodstock to be artificially propagated. The requirement for gonad development of female broodstock is IV ++ During the period, the male broodstock requires light pressure on the abdomen, and a small amount of white semen will flow out, and the pectoral fins are rough and chasing stars.

[0053] (b) Intensive breeding of broodstock:

[0054] Prepare two round cement pools with a radius of 1.5m, first spray the whole pool with 20ppm potassium permanganate solution for disinfection, soak for 30 minutes and then rinse with water. Water inflow is 1m per hour 3 , the water temperature is 19.5 ℃, and then put 50 female and male broodstock respectively. Feed 120g of water earthworms ev...

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Abstract

The present invention discloses an artificial breeding method for Triplophysa xichangensis, and Triplophysa xichangensis belongs to a plateau cold water fish. The present invention provides a selection method, cultivation method and artificial spawning method for parent fishes of Triplophysa xichangensis, and a method for feeding a seed first feed or the like. The method includes the steps: under an artificial controllable condition of water quality and cultivation, employing two doses of oxytocic including luteinizing hormone releasing hormone A2(LHRH-A2) and human chorionic gonadotropin (HCG) on the parent fishes, and allowing gonad development of female fishes and male fishes to be substantially synchronous; and employing natural spawning insemination, and taking the cooked egg yolk as the seed first feed. The method has the high induced spawning rate, the high fertility rate, the high hatching rate and unanimous seedling emergence, the induced spawning rate is 100%, the fertility rate is higher than 95%, the hatching rate is in a range from 75% to 95%, and the survival rate is higher than 95%. The practical applications prove that the method is low in cost, is simple to operate, is highly operable, and is suitable for large scale production of Triplophysa xichangensis.

Description

technical field [0001] The invention belongs to the field of rare aquatic animal diversity protection and population resource multiplication technology, in particular to an artificial breeding method for Xichang plateau loach. This method can be applied to the study of natural population multiplication and artificial breeding of Xichang plateau loach. Background technique [0002] Xichang plateau loach (Triplophysaxichangensis) belongs to Cypriniformes, Cobitidae, Nemacheilinae, and Triplophysa. It is only distributed in Xichang City, Sichuan Province, my country, where it flows into the Anning River at an altitude of 2040 -2100 m in some tributaries. The individual of Xichang plateau loach is small, and it likes to inhabit in rapids and gravel rivers. It is an omnivorous fish and mainly feeds on zooplankton, small benthic animals and humus. Due to the influence of the ecological environment and human activities, the habitat and living environment of Xichang plateau loach i...

Claims

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Application Information

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IPC IPC(8): A01K61/00A23K1/18A23K1/10
CPCY02A40/81A01K61/00
Inventor 李荣倪朝辉吴湘香李云峰盛强茹辉军张燕陈修松
Owner YANGTZE RIVER FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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