The invention discloses a construction method of superior strains of rapid-growing
crassostrea gigas. The construction method is characterized by comprising the following steps: A. building a breeding
base population, using the shell height and the total weight as a seed selection goal, and keeping and collecting parent
shellfish according to high-selective intensity as the basic parent
shellfish population; B. by adopting the
population continuous progeny selection, selecting a certain number of gonadal matured individuals from the preceding generation of parent
shellfish population to form a succeeding generation parent shellfish population, conducting
artificial insemination by adopting a post-mortem method; at the pre-maturation period, keeping and collecting the individuals with high shellfish height and high total weight according to the high selective intensity as the parent shellfish for breeding; C, conducting the quantitative character detection and the genetic parameter
estimation on the succeeding generation parent shellfish population in step B; D, repeating steps B and C while performing the
genetic diversity analysis on
three generations of the continuous progeny selection systems, and conducting the evaluation of the breeding effect. With the adoption of the construction method of the superior strains of the rapid-growing
crassostrea gigas, the breeding progress is largely speeded up, the labor cost of breeding is reduced, the breeding effect is obvious, and the economic benefit of breeding the
crassostrea gigas is improved.