Good nacre cultivating method for pinctada martensii

Abstract

The invention discloses a good nacre cultivating method for pinctada martensii. The method comprising the flowing steps: (1) from a certain wild pinctada martensii group, selecting individuals which are larger than 20mm in shell width and larger than 0.35 in ratio of the shell width and the shell height as breeding parents; (2) from the breeding parents, selecting more than 30 female individuals with mature sexual glands and more than 20 male individuals, taking sperms and eggs through cutting, conducting artificial insemination, and breeding spat young shells; (3) consecutively selecting parents according to the step (1) and breeding spat young shells according to the step (2) for more than three generations when bred spat young shells reach 1.5-2.0 years. Consequently, obtained spat young shells can be used for large-scale production breeding and cultivation. The good nacre cultivating method for the pinctada martensii can remarkably improve the forms of shells and enable the shell to be thick, is suitable for core insertion pearl cultivation, and can reduce death and improve pearl cultivation characters.

Description

Technical field: [0001] The invention belongs to the field of aquaculture and breeding, and in particular relates to a method for cultivating excellent Pinctada martensii. Background technique: [0002] Pinctada martensii is the main species of pearl culture in my country and the world. Since the successful artificial breeding of Pinctada martensii in my country in 1965, the seawater pearl industry has developed rapidly and has become one of the pillar industries of mariculture in Guangdong, Guangxi and some coastal areas of Hainan. In the past 10 years, the quality and output of seawater pearls in my country have declined significantly, the international competitiveness has weakened, and the economic benefits of breeding have declined. The reason is that, in addition to the deteriorating breeding environment and backward breeding technology, there is another important reason: over the years, we have not paid attention to the selection and preservation of seed shells, and b...

AI Technical Summary

Problems solved by technology

[0003] At present, the improvement of Pinctada martensii mainly focuses on the growth rate or the color of the shell, but there is no relevant report on the selection of the shell shape.