A method for continuous batch induction of Atlantic salmon triploid

A triploid and batch technology, applied in the field of chromosome operation, can solve the problems of inconvenient production management, cumbersome operation, and limited amount of fertilized eggs, and achieve the effect of easy production and application, simple and efficient operation
CN111194705BActive Publication Date: 2022-03-04INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INST OF OCEANOLOGY - CHINESE ACAD OF SCI
Publication Date
2022-03-04

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Abstract

The invention relates to chromosome manipulation technology, in particular to a method for continuous batch induction of Atlantic salmon triploid. Atlantic salmon sperm eggs are collected for artificial insemination, and the fertilized eggs are divided into 2-3 groups, and each group is successively subjected to hydrostatic pressure induction treatment to inhibit the discharge of its second polar body, thereby obtaining Atlantic salmon triploid; Pressure induction is, after fertilization 300-400 degrees (temperature ℃ × time min), the fertilized eggs of the first group are subjected to hydrostatic pressure treatment to obtain triploid Atlantic salmon; after the fertilized eggs of the first group are taken out, immediately The second group of fertilized eggs was induced by hydrostatic pressure according to the above process, so that the same batch of fertilized eggs could be continuously induced and treated. By adopting the method of the invention, 100% Atlantic salmon triploids can be continuously and efficiently induced.
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Description

technical field

[0001] The invention relates to chromosome manipulation technology, in particular to a method for continuous batch induction of Atlantic salmon triploid. Background technique

[0002] Atlantic salmon (Salmo salar), belonging to the order Salmoniformes and the family Salmonidae, commonly known as "salmon", is of high quality and belongs to high-end edible fish. With the development of my country's land-based industrial circulating water, deep-water cages, and farming workboats in recent years, as well as the continuously increasing market demand, the Atlantic salmon farming industry has gradually emerged. Under natural conditions, Atlantic salmon is generally sexually mature at the third age. During the process of sexual maturity, most of the energy is used for gonad development, resulting in slow growth and sharp decline in meat quality, thereby affecting its nutritional and economic value. In the process of artificial breeding, the phenomenon of precocious ...

Claims

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