High-yield mussel breeding method based on fresh water pearls

Abstract

The invention discloses a high-yield mussel breeding method based on fresh water pearls and belongs to the field of mussel seed breeding. According to the high-yield mussel breeding method based on fresh water pearls, for selection and breeding of a first generation of mussel parents, male and female mussels of optimal ages are selected as male and female parents, the number of the male and female parents is 300 pairs or more, the shells of the selected male and female parents are respectively marked, a natural fertilization group and an artificial fertilization group are provided, and multiple generations of mussels of the two groups are selected, fertilized and bred constantly, so that various excellent germplasms of offspring mussels are effectively improved in the multi-generation screening and breeding, meanwhile, larger pearls are easier to generate and the mellow and full degree of the pearls is improved through pearl-culturing mussels obtained through artificial pearl implanting inoculation, and the pearl secretion capacity of hyriopsis cumingii is effectively enhanced. After multiple generations of breeding of two groups of experiments, the high-yield varieties of freshwater pearls are effectively cultured through comparative yield analysis of the freshwater pearls.

Description

technical field [0001] The invention relates to the field of clam species breeding, more specifically, to a high-yield mussel species breeding method based on freshwater pearls. Background technique [0002] Pearls are an ancient organic gemstone that has grown in popularity in recent years. According to statistics, most of the freshwater pearls in the world are produced in China, and China has become the world's largest producer of freshwater pearls. A crystal formed by calcification of calcium and organic matrix in a certain proportion. [0003] In the past two decades, the rapid development of freshwater pearl mussel culture and the substantial increase in culture output have largely been achieved by increasing investment and expanding the scale of culture in many places, but there is a lack of high-yield, high-quality, and strong resistance to stress. Excellent varieties are still obvious; the germplasm degradation of freshwater pearl mussels is relatively serious, and...

AI Technical Summary

Problems solved by technology

[0003] In the past two decades, the rapid development of freshwater pearl mussel culture and the substantial increase in culture output have largely been achieved by increasing investment and expanding the scale of culture in many places, but there is a lack of high-yield, high-quality, and strong resistance to stress. Excellent varieties are still obvious; the germplasm degradation of freshwater pearl mussels is relatively serious, and some cultured species have smaller individuals, precocious puberty, and poor disease resistance, which seriously hinder the production of high-yield pearls. The existing culture of freshwater pearl mussels Breeding is mostly natural fertilization of male and female mussels. Some farms often use artificial insemination in order to increase the fertilization rate and shorten the fertilization time, but it is impossible to know which breeding method will produce more pearls in the offspring

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