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Artificial breeding method for wild Lampetra japonica

A technology for artificial breeding and lamprey, which is applied in fish farming, application, climate change adaptation, etc., and can solve problems such as artificial breeding

Active Publication Date: 2019-03-22
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a method for artificial breeding of wild Japanese lampreys in order to overcome the problem that the current Japanese lampreys cannot be artificially bred

Method used

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  • Artificial breeding method for wild Lampetra japonica

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Experimental program
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Effect test

Embodiment 1

[0042] Embodiment 1 A kind of artificial breeding method of wild Japanese lamprey

[0043] 1. Breeding method

[0044] Include the following steps:

[0045] S1. Broodstock selection

[0046] The breeding season of Japanese lamprey is from May to July, but harvesting should start in January. The specific method is to break the ice on the Heilongjiang River and lower the net to catch them. After 2 days, the net is lifted to screen the Japanese lamprey with good vitality and no damage. For the eels, female and male Japanese lampreys with a body weight of about 350 g and well-developed gonads were selected as parents, and the brood fish were paired according to female:male = 3:1.

[0047] S2. Broodstock domestication

[0048] The Japanese lampreys transported by air from the Northeast to our laboratory are first selected from the Japanese lampreys that have been injured by transportation or mutual bites, and then put the Japanese lampreys in good condition into a special incuba...

Embodiment 2

[0058] Embodiment 2 A kind of artificial breeding method of wild Japanese lamprey

[0059] 1. Breeding method

[0060] Include the following steps:

[0061] S1. Broodstock selection

[0062] The breeding season of Japanese lampreys is from May to July, but harvesting should start in January. The specific method is to break the ice on the Heilongjiang River and lower the nets to catch them. After 2 days, the nets are lifted to screen the Japanese lampreys with good vitality and no damage. For the eels, female and male Japanese lampreys with a body weight of about 500 g and well-developed gonads were selected as parents, and the brood fish were paired according to female:male = 4:1.

[0063] S2. Broodstock domestication

[0064] The Japanese lampreys transported by air from the Northeast to our laboratory are first selected from the Japanese lampreys that have been injured by transportation or mutual bites, and then put the Japanese lampreys in good condition into a special i...

Embodiment 3

[0074] Embodiment 3 A kind of artificial breeding method of wild Japanese lamprey

[0075] 1. Breeding method

[0076] Include the following steps:

[0077] S1. Broodstock selection

[0078] The breeding season of Japanese lamprey is from May to July, but harvesting should start in January. The specific method is to break the ice on the Heilongjiang River and lower the nets to catch them. After 2 days, the nets are used to screen for vigorous and undamaged Japanese lampreys. , re-screening and selecting female and male Japanese lampreys with a body weight of about 300g and well-developed gonads as parents, and the brood fish were matched according to female fish: male fish = 2:1.

[0079] S2. Broodstock domestication

[0080] The Japanese lampreys transported by air from the Northeast to our laboratory are first selected from the Japanese lampreys that have been injured by transportation or mutual bites, and then put the Japanese lampreys in good condition into a special in...

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Abstract

The invention discloses an artificial breeding method for wild Lampetra japonica. The method comprises the five steps of parent fish selection, parent fish domestication, artificial insemination, fertilized egg hatching and larva rearing. The method solves a series of problems involved in the parent fish selection, parent fish domestication, artificial insemination, fertilized egg hatching and larva rearing processes by continuously changing and optimizing the artificial breeding conditions of Lampetra japonica, so large-scale production of embryos and larvae is realized, and conditions are created for scientific researches and large-scale cultivation of Lampetra japonica. In addition, the method facilitates the protection of the endangered species, and also provides a reference for the solution of the problem of difficult artificial breeding of other migratory fish.

Description

technical field [0001] The invention relates to the technical field of lamprey culture, and more specifically, relates to an artificial breeding method for wild Japanese lamprey. Background technique [0002] Japanese lamprey (Lethenteron japonicum) is an aquatic animal of the Lamprey family Lamprey. It has a long and narrow body, a body length of 40-60 cm, and a weight of 300-500 g. Distributed in the northern part of the Pacific Ocean, south to the coast of Japan and Korea, north to Alaska and the Heilongjiang River System. The Japanese lamprey breeding ground and its larval habitat are all in the northeast of China (although it is called the Japanese lamprey), and it is a rare and endangered wild aquatic organism in my country. The Japanese lamprey is the most primitive jawless vertebrate with a history of 500 million years ago and has very important application value. [0003] 15 kinds of fatty acids can be detected in Japanese lamprey muscle, the total amount of unsat...

Claims

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Application Information

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IPC IPC(8): A01K61/10A01K61/17
CPCA01K61/10A01K61/17Y02A40/81
Inventor 徐安龙张涛涛吴芬芳陈尚武
Owner SUN YAT SEN UNIV