Culture method of Mexico and Korea hybrid scallops

Abstract

The invention relates to a culture method of Mexico and Korea hybrid scallops. According to the method, in the first year, good seed scallops are selected and are subjected to ripening acceleration, then, ova of a single Mexico gulf scallop and sperms of a single Korea gulf scallop are respectively collected, and are mixed for insemination, a Mexico and Korea hybrid first generation family is built, and conventional gulf scallop fry culture, fry preservation and sea cultivation methods are used for culture; in the second year, good hybrid families are selected according to the expression types of each hybrid family obtained in the first year, individuals with good properties are selected from the good hybrid families, and after the ripening acceleration, the autofertilization is respectively carried out for purification, so a selfing family of a plurality of Mexico and Korea hybrid sub first generations is built; selfing is continuously carried out for more than five generations by the same method, and a new scallop variety with the advantages of stable heredity, high growth speed, great individual size and wide temperature-resistant range can be obtained. The scallops in the variety simultaneously have the excellent characteristics of the Mexico gulf scallops and the Korea gulf scallops, and can be cultured in most sea area in China, the yield is improved by more than 40 percent through being compared with that of the Mexico gulf scallops cultured in south China, and great economic values are realized.

Description

technical field [0001] The invention belongs to shellfish breeding technology, and in particular relates to a method for cultivating a new hybrid offspring of Gulf of Mexico scallop and South Korea's bay scallop—the cultivation method of Mexican-Korean hybrid scallop. Background technique [0002] The Gulf of Mexico scallop (Argopecten irradians concentricus) is a subspecies of the Gulf scallop on the Atlantic coast of the United States. It has the characteristics of fresh and tender meat, wide temperature adaptability, short growth cycle, fast fecundity, and easy breeding. It was introduced to China in 1991 and achieved successful breeding. At present, large-scale farming has been formed in Guangdong, Hainan, Guangxi and other places, and it has become the pillar industry of shellfish farming in the Beibu Gulf area. However, the Gulf of Mexico scallop itself is small, coupled with the gradual expansion of the breeding area and successive generations of breeding, resulting i...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for cultivating a new variety of Mexican-Korean hybrid scallop, so as to overcome the problems of frequent disease occurrence, germplasm degradation, and increased mortality of the existing Gulf of Mexico scallop