Study on the Effect of Mass Selection and Hybridization on Growth Performance of Chinese Pearl Oyster Pinctada martensii

The pearl oyster Pinctada martensii is an important species for sea production in China. To explore the influence of combination mass selection and hybridization on growth performance P. , we established four selected groups control (each with two within-family crosses reciprocal hybrid crosses) using 1-year-old offspring families (Family A Family B) from Beihai, Guangxi Province, Generally, group was greater than that both crosses. Shell length width were affected by genotype, environmental factors, interaction between Days 210 360. shell widths all showed heterosis Day a certain degree inbreeding depression during period. On 360, three genetic parameters ♀ B ♂ largest, values 0.70, 1.17, 0.06 realized heritability, standard response to selection, current gain, respectively. Overall, × best. Therefore, could be effective way improve .