Breeding method for rapid growing line of seawater pearl shells

Abstract

The invention relates to a breeding method for a rapid growing line of seawater pearl shells, which comprises the steps of: taking a certain population of Pinctada martensii Dunker as a basic population, firstly selecting individuals with shell width being 10-40 percent higher than average value from the basis population by taking shell width as a selection index, then selecting individuals with shell height or weight being 10-60 percent higher than average value as breeding parents, dissecting the breeding parents, taking sexual glands to conduct artificial insemination, selecting and reserving preparative parents at a young shell stage according to a proportion of 20-30 percent, and finally conducting more than three generations of continuous selection to obtain the rapid-growing large excellent Pinctada martensii Dunker line (variety). The breeding method has the advantages that the method is simple, convenient and feasible, the cost for nursing the parents can be reduced, the growth speed and the individual size of the Pinctada martensii Dunker can be effectively improved and the pearl producing effect is improved.

Description

technical field [0001] The invention belongs to the field of aquaculture and breeding, and relates to a breeding method for growing Pinctada martensii characterized by fast growth and large individual. 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. In terms of the reasons, apart from the deteriorating breeding environment and backward breeding technology, there is another important reason: no attention has been paid to the selection and preservation of seed...

AI Technical Summary

Problems solved by technology

In terms of the reasons, apart from the deteriorating breeding environment and backward breeding technology, there is another important reason: no attention has been paid to the selection and preservation of seed oysters for many years, and there is a lack of good varieties; , such as slow growth, small size, weakened pearl breeding ability, etc.