Estimation of Genetic Parameters of Growth-related Traits from 11-month-old Olive Flounder (Paralichthys olivaceus) Base Population in which Wild Flounder Broodstocks were Introduced

Division of Animal Science, Gyeongsang National University, 501, Jinjudae-ro, Jinju-si, Gyeongsangnam-do, 660-701, KoreaABSTRACTThis study estimated the genetic parameters of growth-related traits from 11-month-old olive flounder(Paralichthys olivaceus) base population in which wild and cultured broodstocks were introduced. The heritability of body weight, total length, body height, body shape, and condition factor of the base population was estimated to be 0.754, 0.753, 0.789, 0.438, and 0.369, respectively. Genetic correlations between body weight and total length, between body weight and body height, and between total length and body height were 0.969, 0.960, and 0.960, respectively, showing highly positive correlation. Genetic correlations between body weight and body shape, between total length and body shape, between body height and body shape were 0.403, 0.344, and 0593, respectively, showing low negative correlation. Overall, olive flounder might be an appropriate selective breeding species with the high heritability of the traits in an 11-month-old population.(Key words : Olive flounder(Paralichthys olivaceus), Growth-related traits, Genetic parameter, Heritability, 11-month-old)