Manual intervention method for giant salamander reproduction

An artificial intervention, giant salamander technology, applied in fish farming, application, climate change adaptation and other directions, can solve the problems of low artificial reproduction success rate, reproductive difficulty, slow growth rate and other problems of giant salamander, and achieve the effect of improving the artificial reproduction success rate.

Inactive Publication Date: 2013-09-11
天津正跃水产储养有限公司
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Problems solved by technology

Giant salamander loves shade and is afraid of light, and its growth rate is slow. It takes 5 to 6 years to reach sexual maturity under wild conditions, so its reproduction is relatively difficult. Especially in northern regions, the success rate of artificial reproduction of giant salamander is low.

Method used

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Embodiment Construction

[0013] It usually takes 5-6 years for giant salamanders to reach sexual maturity in the wild, but it takes a little later in artificial breeding. It takes 7-8 years for artificial insemination. In the wild environment in the south, estrus usually occurs from August to October, while in the north, fertilization must be completed before September to ensure the success rate of artificial fertilization and hatching of giant salamanders.

[0014] The present invention adopts four steps of egg pulling, semen collection, insemination, and hatching for manual intervention. In September, firstly, the female giant salamanders that have been artificially cultivated for 8 years are observed to have egg belts, and the giant salamanders are gently picked up. One person covers the head of the giant salamander with a damp cloth, puts the giant salamander on a table or a larger basin with its belly up, and gently stabilizes the head of the giant salamander; the other person holds the tail of th...

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Abstract

The invention discloses a manual intervention method for giant salamander reproduction. The manual intervention method sequentially and continuously includes the steps of pulling eggs, semen collection, insemination, incubation and the like. The steps are performed at constant temperature of 17-23 DEG C. The incubation can be performed in micro-flowing water or in still water. The manual intervention method is used for reproduction of cultured giant salamanders, and the success rate of giant salamander artificial reproduction in northern area is increased.

Description

technical field [0001] The invention relates to the cultivation of giant salamanders. Background technique [0002] Giant salamander, also known as giant salamander, is a national second-class protected animal. It is mainly produced in mountain streams and rivers in the upper and middle reaches of the Yangtze River, Yellow River and Pearl River tributaries, especially in Sichuan, Hubei, Hunan, Guizhou, Shaanxi and other provinces. Giant salamander loves shade and is afraid of light, and its growth rate is slow. It takes 5-6 years to reach sexual maturity under wild conditions, so its reproduction is relatively difficult. Especially in northern regions, the success rate of artificial reproduction of giant salamander is low. Contents of the invention [0003] The purpose of the present invention is to provide an artificial intervention method for giant salamander breeding, which can improve the success rate of artificial breeding of giant salamander in northern areas. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 谈振洪
Owner 天津正跃水产储养有限公司
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