Method for breeding excellent pinctada of sea water pearls
A technology for cultivating pearl oysters and pearl oysters, which is applied in the fields of medical science, fish farming, animal delivery, etc. Problems such as the decline in the proportion and the deterioration of the breeding environment
Inactive Publication Date: 2006-11-15
HAINAN UNIVERSITY
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Problems solved by technology
The reasons causing this phenomenon are not only the excessive breeding density, the deterioration of the breeding environment and the backward breeding technology, but also the following important reasons: first, the popularization and application of artificial propagation and seedling raising technology makes the production units only care about the immediate interests and use very few The broodstock (mainly cultured shellfish) breeds seedlings, leading to inbreeding, and the germplasm of cultured pearl oysters is seriously degraded, so that the survival rate, pearl collection index, and the proportion of commercial pearls and high-quality pearls of pearl oysters are significantly reduced, while thin pearl oysters The phenomenon of layered pearls, dirty pearls, deformed pearls, and small pearls is becoming more and more serious; second, the seawater pearl industry has always only focused on breeding, not on breeding, and there are no good varieties at all; The random spread of sea areas and the irregular exchange of shellfish seedlings produced by different units in each sea area have resulted in the destruction of the genetic structure of the natural population, the reduction of genetic diversity, and seriously affected the quality of germplasm; thus resulting in the decline in the quality and unit yield of seawater pearls in my country
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[0016] Collect wild Pinctada martensii from Sanya or Chinese populations far away from the cultured sea area, and select 50 female individuals with good traits as female parents and 20 male individuals as male parents, with a male-to-female ratio of 2.5:1; after cleaning and disinfection Placed in the same pool to naturally lay eggs, ejaculate and fertilize, and the offspring hatched are the offspring of the first generation SS 1 (F 1 ), SS 1 After breeding to sexual maturity, 50 female individuals with good traits were selected as female parents, and 20 male individuals were selected as male parents, with a male-female ratio of 2.5:1; after being washed and disinfected, they were placed in the same pool for natural oviposition, ejaculation and Fertilized, hatched offspring is its offspring generation SS 2 (F 2 ), bred SS in the same way 3 (F 3 ) and SS n (F n ). SS n (F n ) refers to continuously using this route to breed and purify the daughter generation of more t...
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A method for culturing the excellent nacre of seawater pearl includes such steps as selectively culturing the wild Sanya nacre or Chinese Ma's nacre as female parents and the cultured Indian nacre as male parents by multiple generations, and crossing between them.
Description
technical field [0001] The invention relates to a breeding method for cultivating excellent pearl oysters of seawater pearls, especially fast growth speed, capable of inserting large nuclei, producing large pearls, and increasing the nuclei retention rate, pearl yield rate and high-quality pearl rate. Background technique [0002] Since the successful artificial breeding of Pinctada martensii in my country in 1965, seawater pearl cultivation has developed rapidly, especially after the 1990s, seawater pearl cultivation has become the pillar industry of seawater cultivation in Guangdong, Guangxi and some coastal areas of Hainan. One, seawater pearls have become an important product for export and foreign exchange earning. After the 21st century, the output and quality of my country's seawater pearl culture industry has declined significantly, and its competitiveness in the international pearl market has gradually decreased. The reasons causing this phenomenon are not only the ...
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Login to View More IPC IPC(8): A01K61/00A61D19/00
CPCY02A40/81
Inventor 王爱民石耀华顾志峰王嫣
Owner HAINAN UNIVERSITY