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ISSN : 1225-3480

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28권 4호

31개월령 북방전복, Haliotis discus hannai의 성장형질에 대한 선발반응 추정

The Estimation of Selection Response for Growth Traits in 31-month Old of Pacific abalone, Haliotis discus hannai

박종원 (국립수산과학원 육종연구센터)
박철지 (국립수산과학원 육종연구센터)
이정호 (국립수산과학원 육종연구센터)
노재구 (국립수산과학원 육종연구센터)
김현철 (국립수산과학원 육종연구센터)
황인준 (국립수산과학원 육종연구센터)
김성연 (국립수산과학원 육종연구센터)
한국패류학회지 / The Korean Journal of Malacology, (P)1225-3480;
2012, v.28 no.4, pp.335-342
https://doi.org/10.9710/kjm.2012.28.4.335
박종원, 박철지, 이정호, 노재구, 김현철, 황인준, & 김성연. (2012). 31개월령 북방전복, Haliotis discus hannai의 성장형질에 대한 선발반응 추정. , 28(4), 335-342, https://doi.org/10.9710/kjm.2012.28.4.335

초록

본 연구에서는 31개월령 북방전복의 성장형질에 대한 선발반응을 추정하기 위해 2008년에 생산된 2세대 육종전복의 모집단 6,858마리와 다음 세대 생산을 위해 최종 교배지침에 포함된 614마리의 자료를 이용하였다. 각 형질별 전체평균은 각 장, 각폭 및 중량이 각각 76.31 mm, 49.48 mm 및 56.90 g로 조사되었고, 중량의 변이계수가 28.70%로 나타나 다른 형질에 비해 자료의 변이가 가장 크게 나타났다. 각장, 각폭, 중량 및 비만도에 있어서 성과 성숙도의 효과에 대한 분산분석을 실시한 결과 비만도를 제외한 모든 형질에서 고도의 유의성이 인정되었으며 (p < 0.01), 성의 효과는 비만도를 제외한 모든 형질에 있어서 수컷보다 암컷이 유의적으로 높게 나타났다. 각 형질별 육종가와 표현형가의 상관관계는 각장, 각폭 및 중량에 있어서 순위상관계수와 단순상관계수의 범위가 0.63에서 0.71로 대체적으로 낮게 나타나 육종가와 표현형가의 상관관계를 더 높인다면 보다 효율적인 개량을 도모할 수 있을 것으로 사료되며, 선발반응 예측치 즉, 기대되는 유전적 개량량은 각장, 각폭 및 중량이 각각 9.6%, 9.5% 및 26.1%로 나타났다. 따라서 다음 세대에 있어서 보다 높은 선발반응을 기대하기 위해서는 선발의 정확도는 물론 최종교배를 위해 선발되는 개체의 비율과 선발강도를 적절히 고려하여야 할 것으로 사료된다.

keywords
Pacific abalone, Selection Response, Growth, Estimation, Haliotis discus hannai

Abstract

This study was conducted to estimation the selection response for growth-related traits in 31-month old of Pacific abalone, Haliotis discus hannai were born in 2008. In overall mean of surveyed traits and standard deviation showed $76.31{\pm}7.247$ mm of shell length, $49.48{\pm}5.307$ mm of shell width and $40.96{\pm}6.80$ g of total weight. The effect of sex and maturity were statistically significant in all traits include out a condition factor (p < 0.01). And In effect of sex, female were higher than male in all traits excepting condition factor, significantly. In correlation between breeding value and phenotypic value by each traits, showed rank correlation coefficient and simple correlation coefficient, which represented low positive correlation. A hopeful genetic improvement to the next generation showed 6.96 mm of shell length, 4.47 mm of shel width and 12.93 g of total weight. Therefor, It is considered that if considering properly selection intensity and selection ratio, efficient improvement could be made.

keywords
Pacific abalone, Selection Response, Growth, Estimation, Haliotis discus hannai

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