Seedling raising method for improving crassostrea gigas gamete quality
By using lipopolysaccharide treatment on long oyster shellfish, the problems of high mortality rate and unstable gamete quality of long oyster larvae were solved, and the growth rate and disease resistance of offspring larvae were significantly improved.
CN119699249AActive Publication Date: 2025-03-28DALIAN OCEAN UNIV
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Patent Information
- Application Number
- CN202510043013.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2045-01-10
AI Technical Summary
Technical Problem
The high mortality rate of long oyster larvae leads to unstable seedling production, and the existing technology is difficult to effectively improve its gamete quality and disease resistance.
Method used
The development of gametes is promoted and gamete quality is improved by using lipopolysaccharides in the undeveloped gonad state of long oyster shellfish.
Benefits of technology
It improves the total antioxidant ability of the gametes in the long oysters, promotes the growth rate and attachment abnormality rate of offspring larvae, and significantly improves the quality and disease resistance of seedlings.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention belongs to the technical field of aquaculture, and particularly relates to a breeding method for improving the gamete quality of crassostrea gigas. The method comprises the following steps: selecting parent crassostrea gigas with non-developed gonads, carrying out lipopolysaccharide treatment on the parent crassostrea gigas, raising the temperature to promote maturity, and culturing filial generations by using gametes generated by the parents; the diameter of gamete eggs generated by the parent crassostrea gigas subjected to lipopolysaccharide treatment is increased, the total antioxidant capacity is improved, and the growth speed and the attachment metamorphosis capacity of generated offspring larvae are remarkably improved. The invention opens up a new way for solving the bottleneck problem of high death rate of larvae in the artificial breeding process of crassostrea gigas.
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