Haliotis sieboldii and Haliotis discus hannai interspecific hybridization seed production method

Abstract

An interbreeding producing method of haliotis sieboldii and haliotis discus hannai relates to a cultivation method for seashells and provides a high-fertilization-ratio and high-hatching-ratio interbreeding producing method of haliotis sieboldii and haliotis discus hannai. haliotis sieboldii are taken as parent ormers and haliotis discus hannai are taken as parent ormers when the temperature of natural seawater is 22-26 DEG C, ormers are respectively arranged in different cultivation pools of parent ormers according to sex for cultivation, individuals with mature gonad are expedited to produce with shade drying combined with the stimulation method of using ultraviolet to irradiate seawater until female and male parent ormers lay ova and sperm. The sperm of haliotis sieboldii and the ova of haliotis discus hannai are taken and combined, the pH of seawater for fertilized ova is adjusted, and then ova are washed when fertilized ova divide to the binary division period. Fertilized ova produced by interbreeding female haliotis sieboldii and male haliotis discus hannai can be achieved by that the sperm of haliotis discus hannai and the ova of haliotis sieboldii are taken and combined, the pH is adjusted, and then ova are washed when fertilized ova divide to the binary division period. Finally, ova are cultivated according to normal batching and carry-on cultivation methods.

Description

A kind of interspecific hybrid seed production method of western abalone and wrinkled pan abalone technical field The invention relates to a method for cultivating shellfish, in particular to a method for interspecies hybridization of Siberian abalone and wrinkled pan abalone. Background technique It has far-reaching theoretical significance and broad application prospects to use genetic improvement technology to cultivate fine varieties for shellfish farming. Hybrid breeding technology belongs to genetic improvement technology. Hybridization generally refers to the mating between two different types of parents above a variety or strain. The mating between two parents with a taxonomic status above a species is called interspecific hybridization. The hybrid individuals cultivated through cross breeding will have higher heterosis in terms of growth potential, survival rate and disease resistance, and can rapidly and significantly increase the yield and survival rate of the h...

AI Technical Summary

Problems solved by technology

The purpose of the present invention is to solve the problems of low fertilization rate and hatching rate existing in the existing hybridization technology, and to provide a method for interspecies hybridization of Siberian abalone and rugosa abalone with high fertilization rate and hatching rate

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