Interspecific hybridization and propagation method for deep sea scallops and chlamys farreri

Abstract

The invention discloses an interspecific hybridization and propagation method for deep sea scallops and chlamys farreri. The interspecific hybridization and propagation method comprises the following steps: a first step of breeding parent scallops: selecting deep sea scallops and chlamys farreri, separating the male and the female of the two scallops respectively, promoting maturity according to a normal parent scallop breeding method and using the mature scallops for cross experiment after synchronously maturing the mature scallops; a second step of laying eggs and performing hybridization: inducing spawning of the male and female groups of the two scallops respectively, fertilizing obtained eggs with conspecific or heterogeneous sperms respectively to obtain pure-bred self-bred progenies of the deep sea scallops and chlamys farreri as well as two hybrid fertilized eggs of female deep sea scallops and male chlamys farreri, female chlamys farreri and male deep sea scallops; hatching the obtained fertilized eggs at 13 to 14 DEG C, observing and measuring the proportion of D type larvas at regular times after the D type larvas appear until the maximum hatching rate is reached; a third step of cultivating scallops, wherein at a larval phase, the average shell height growth speed of the hybrid scallops is 6 to 6.3m per day, and the shell height, the shell length, the shell width and the weight are increased in a cultivating phase. According to the interspecific hybridization and propagation method disclosed by the invention, the deep sea scallops are effectively utilized through interspecific hybridization, so that the scallop breeding species are increased.

Description

technical field [0001] The invention relates to a marine product cultivation method, in particular to a hybrid cultivation method of deep-sea scallops. Background technique [0002] At present, there is only one kind of large scallop cultured in the northern seas of my country, the Ezo scallop. Because of its large size and delicious taste, Ezo scallop has become the main scallop species consumed by high-end hotels and is very popular in the market. In recent years, the high mortality rate in scallop farming has made the supply of products not stable enough, and the irregular edges of scallops make them easy to lose moisture, so the shelf life is short, and a single species cannot meet the diversification of the market need. Therefore, the scallop farming industry needs more large-sized scallops with good taste, long shelf life and stable supply to support its sustainable development. [0003] Atlantic deep-sea scallops ( Placopecten magellanicus ) are large scallops nat...

AI Technical Summary

Problems solved by technology

Therefore, this kind of scallop may be suitable for breeding in Dalian sea area of ​​my country, but the breeding method is still blank

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