다형질 Animal Model에 의한 12개월령 한국산 전복 2 아종의 성장관련형질에 대한 유전모수 추정 (Estimation of Genetic Parameters for Growth-Related Traits in 1-Year Old of Two Korean Abalone Subspecies, Haliotis discus hannai and H. discus discus, by Using Multiple Traits of Animal Mode)

서지정보

· 발행기관 : 한국패류학회
· 수록지 정보 : The Korean Journal of Malacology / 24권 / 2호 / 121 ~ 130페이지
· 저자명 : 최미경, 한석중, 양상근, 원승환, 박철지, 여인규

초록

In other aquaculture species, large improvements in growth have been achieved through selective breeding. Ezo
abalone (Haliotis discus hannai) and disk abalone (H. discus discus) are major aquatic animals cultured in Asia, but
selective breeding for the promotion of growth with these abalones has not been actively pursued. Recently
significant efforts are being made to promote production of these species through selective breeding in Korea. The
aims of this work were to estimate the general genetic parameters, heritabilities, and genetic and phenotypic
correlations on growth-related traits at 1-year old in two Korean abalone subspecies, H. discus hannai and H. discus
discus, by using multiple trait animal model. The data were collected from the records of 1,504 individuals produced
from 22 sires and 26 dams in H. discus hannai and 297 individuals produced from 5 sires and 6 dams in H. discus
discus, which evaluated by the Genetics and Breeding Research Center, National Fisheries Research &
Development Institute (NFRDI). Genetic parameters were estimated for these abalone subspecies raised in Bukjeju
branch, NFRDI, from May 20, 2004 to May 16, 2005, respectively. The heritability estimates obtained from restricted
maximum likelihood (REML) were higher than expected, ranging from 0.40 to 0.43 for growth traits shell length, shell
width and body weight in H. discus hannai and from 0.26 to 0.51 in H. discus discus, respectively. The heritabilities
for shell shape and condition factor were lower than others of growth traits such as ranging from 0.09 to 0.19 in H.
discus hannai and from 0.10 to 0.23 in H. discus discus, respectively. Genetic and phenotypic were > 0.93 between
shell parameters and weight in two abalone species, respectively, indicating that breeding for weight gains could be
successfully achieved by selecting for shell length.

영어초록

In other aquaculture species, large improvements in growth have been achieved through selective breeding. Ezo
abalone (Haliotis discus hannai) and disk abalone (H. discus discus) are major aquatic animals cultured in Asia, but
selective breeding for the promotion of growth with these abalones has not been actively pursued. Recently
significant efforts are being made to promote production of these species through selective breeding in Korea. The
aims of this work were to estimate the general genetic parameters, heritabilities, and genetic and phenotypic
correlations on growth-related traits at 1-year old in two Korean abalone subspecies, H. discus hannai and H. discus
discus, by using multiple trait animal model. The data were collected from the records of 1,504 individuals produced
from 22 sires and 26 dams in H. discus hannai and 297 individuals produced from 5 sires and 6 dams in H. discus
discus, which evaluated by the Genetics and Breeding Research Center, National Fisheries Research &
Development Institute (NFRDI). Genetic parameters were estimated for these abalone subspecies raised in Bukjeju
branch, NFRDI, from May 20, 2004 to May 16, 2005, respectively. The heritability estimates obtained from restricted
maximum likelihood (REML) were higher than expected, ranging from 0.40 to 0.43 for growth traits shell length, shell
width and body weight in H. discus hannai and from 0.26 to 0.51 in H. discus discus, respectively. The heritabilities
for shell shape and condition factor were lower than others of growth traits such as ranging from 0.09 to 0.19 in H.
discus hannai and from 0.10 to 0.23 in H. discus discus, respectively. Genetic and phenotypic were > 0.93 between
shell parameters and weight in two abalone species, respectively, indicating that breeding for weight gains could be
successfully achieved by selecting for shell length.

참고자료

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