Korean Journal of Poultry Science (한국가금학회지)

The Korean Society of Poultry Science (한국가금학회)
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Estimation of the Heritabilities and Genetic Correlations on Egg Shape Index and Internal Egg Qualities in Korean Native Chicken

한국재래계의 난형지수 및 난질에 대한 유전력 및 유전상관의 추정

  • 한성욱 (충남대학교 동물자원학부) ;
  • 상병찬 (충남대학교 동물자원학부) ;
  • 이준헌 (충남대학교 동물자원학부) ;
  • 정욱수 (충남대학교 동물자원학부) ;
  • 상병돈 (충남대학교 동물자원학부)
  • Published : 1998.09.01
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Abstract

This study was carried out to estirnate the heritabilities and genetic correlations on egg shape index and internal egg qualities ; shell thickness, alburnin heights and Haugh units for breeding plan and selection in Korean native chicken. Data analyzed were the records of 46,908 eggs from 43() layers from April, 1994 to September, 1995. The egg shape index at the first egg, 300 days and 500 days of ages were 74.771, 74.468 and 73.702; the shell thickness were 0.345, 0.344 and 0. 334mm; the alburnen heights were 6.579, 6.130 and 5.318mm; the Haugh units were 86.859, 81.014 and 73.565 respectively. The heritability estimates of egg shape index and internal egg qualities based on the variance of sire, dam and combined components at 300 days of age were 0.136, 0.954 and 0.545 for egg shape index; 0.201, 0.622 and 0.421 for shell thickness; 0.410, 0.961 and 0.633 for albumen height ; 0.353, 0.962 and': 0.608 for Haugh units. The genetic correlation coefficient between shell thickness and albumen height was -0.044~0.824; 0.016~0.949 between Haugh units and shell thickness 0.313~0.941 between albumen height and Haugh units, respectively.

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References

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