Preparation method of novel high-temperature-resistant and fast-growing paralichthys olivaceus triploid strain

Through supporting system hybridization and triploid induction technology, a new high-temperature-resistant and fast-growing turbot triploid product was prepared, which solved the problem of poor turbot triploid performance, and achieved large-scale production and ecological security improvement of turbot triploid.

CN120436096APending Publication Date: 2025-08-08INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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Patent Information

Application Number
CN202510602733.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-12
Publication Date
2025-08-08

AI Technical Summary

Technical Problem

The prior art is difficult to efficiently prepare turbot triploid fish with high temperature resistance and rapid growth traits, and the triploid fish have poor fertility and cannot breed other economic traits through passage breeding.

Method used

The high-temperature-resistant and fast-growth matching system was constructed using supporting system hybridization technology and triploid induction technology, and cold shock treatment was performed after mature sperm and egg insemination to induce new high-temperature-resistant and fast-growing dental triploid products.

Benefits of technology

It has achieved large-scale production of turbot triploid, with high temperature resistance and rapid growth traits, and is suitable for intensive breeding and deep sea cage farming, improving breeding benefits and ecological security.

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Abstract

The invention belongs to the technical field of genetic breeding, and particularly relates to a preparation method of a novel high-temperature-resistant and fast-growing paralichthys olivaceus triploid strain. According to the method, high-temperature resistance and body weight are used as screening indexes, a high-temperature-resistant commercial line and a fast-growing commercial line of paralichthys olivaceus are constructed by using the technologies of population breeding, gynogenesis and the like, then the commercial lines are used as male and female parents, mature sperms and eggs are collected for insemination, triploid induction is performed, and high-temperature resistance and growth traits are measured, so that the high-temperature-resistant commercial line of paralichthys olivaceus is obtained. And obtaining a triploid new strain with two characters of high temperature resistance and fast growth at the same time. According to the method, the triploid paralichthys olivaceus fries with high-temperature-resistant and fast-growing characters can be efficiently induced and generated in batches, and high practicability is achieved.
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