Estimation of Genetic Parameter and Growth Traits by Sex of Pacific Abalone, Haliotis discus hannai
Choul-Ji Park, Jong-Won Park, Bo-Ra Kim, Kyu Hyeon Jeong, Young Jin Kim, Yoon Suk Son and Kyung Kil Kim
Genetics and Breeding Research Center, NIFS, Gyeongsangnam-do Geoje, 53334, Korea
The purpose of this study is to estimate genetic parameter and growth traits by sex of Pacific abalone, Haliotis discus hannai. The abalone 10 family produced using 1:1 mating system of male and female for analyses of sex ratio and growth traits (shell length, shell width, and total weight) by sex. Overall mean in phenotypic traits at 30-month-old showed 85.01 mm of shell length, 57.49 mm of shell width and 73.34 g of total weight respectively. The sex ratio (female : male) was 1:0.93 (n = 191:177). The values of growth traits by sex showed significant difference (P < 0.05). The each value of female growth traits were shown to be higher than the values of male growth traits. The heritability of growth traits by sex were estimated that the heritability of female growth traits are higher than male that. The results suggest a possibility of improving the growth of cultured abalone using selection breeding by sex.
  
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