Aquatic animal selective breeding method adopting group as unit

Abstract

The invention discloses an aquatic animal selective breeding method adopting a group as a unit, and the method comprises the following steps of establishing a basic group adopting the group as a unit to form a current generation group; acquiring a group selective index; sorting a seed group and a seed individual; selecting pairing groups, establishing a mating group, and generating a next generation group; setting a virtual male parent and a virtual female parent for each next generation group; and repeating the steps to acquire the needed next generation group. By utilizing the selective breeding method, the technical difficulty that the breeding target trait test, genealogy establishment and orientation mating of aquatic animals of the individuals or family marks cannot be implemented can be effectively solved, the genetic evaluation of multiple breeding target traits and multiple generations can be realized, and the selection progress and the selection accuracy of the breeding target traits can be improved.

Description

technical field [0001] The invention belongs to the technical field of aquatic genetics and breeding, and in particular relates to a selective breeding method for aquatic animals, more specifically, it is adopted for some aquatic species which cannot be individually marked and difficult to realize one-to-one directional mating. Group-based selection breeding method. Background technique [0002] The rapid development of my country's aquatic seed industry has made a significant contribution to the sustainable development of aquaculture industry and food security. As of 2011, a total of 109 new varieties have passed the examination (recognition) of the National Aquatic Original and Improved Variety Approval Committee, of which 46 are selected and bred, 33 are hybrids, and 30 are introduced. As the core supporting technology of aquatic seed industry, multi-trait compound breeding technology is in the stage of continuous development and improvement. During the "Eleventh Five-Y...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a selective breeding method for aquatic animals with a group as a unit, aiming at aquatic species that cannot be marked by individuals or families in the prior art and difficult to artificially orientate mating, effectively solving the problems of breeding target trait testing, pedigree construction and orientation Mating technical problems are conducive to the realization of multiple breeding target traits and genetic evaluation of multiple generations, which in turn can improve the genetic progress and selection accuracy of breeding target traits

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