Journal of Animal Science and Technology

Korean Society of Animal Sciences and Technology (한국축산학회)
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Estimation of Genetic Parameters on Pre-weaning Growth Traits in Hanwoo

한우의 이유전 성장형질에 관한 유전모수 추정

  • Hwang, J.M. (National Livestock Research Institute, Institute of Environment) ;
  • Choi, J.G. (National Livestock Research Institute, Institute of Environment) ;
  • Kim, H.C. (National Livestock Research Institute, Institute of Environment) ;
  • Choy, Y.H. (National Livestock Research Institute, Institute of Environment) ;
  • Lee, C. (Life Science, Hallym University) ;
  • Yang, B.K. (College of Animal Life Science, Kangwon National University) ;
  • Shin, J.S. (College of Animal Life Science, Kangwon National University) ;
  • Kim, Jong-Bok (College of Animal Life Science, Kangwon National University)
  • Published : 2007.04.30
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Abstract

A total of 4,627 records on pre-weaning growth traits, birth weight(BW), weaning weight(WW) and pre-weaning daily gain(ADG) of Hanwoo’s born form 1970 to 2005 were collected from Hanwoo Experiment Station, National Livestock Research Institute. Variance components and heritabilities of BW, WW and ADG were estimated with two models; Model 1 included only direct genetic effect while Mode1 2 included direct genetic, maternal genetic and permanent environmental effects. Direct herit- ability estimates of BW, WW and ADG estimated by model 1 were 0.34, 0.26 and 0.20, respectively. In model 2, direct heritability and maternal genetic heritability estimates were 0.14 and 0.06 for BW, 0.07 and 0.04 for WW and 0.05 and 0.04 for ADG. Estimates of genetic correlation between direct and maternal effect for BW, WW and ADG were 0.58, 0.75 and 0.61, respectively. Genetic correlation coefficients between BW and WW, between BW and ADG, and between WW and ADG were 0.76, 0.62 and 0.99, respectively.

본 연구에서는 생산성이 인정된 모돈 F1(YL)에 종료웅돈(Terminal Sire)으로 Duroc종 이외에 생산성 저하에 많은 영향을 미치지 않을 것으로 판단되는 최종 종료웅돈(Terminal Sire) Berkshire종과 Berkshire×Duroc(F1)을 YL(♀) 교배시켜 생산된 비육돈(YLD, YLB, YLBD)의 성장과 육질을 비교 분석 하였다. 성장형질에서는 YL(♀)×BD(♂)가 YL(♀)×D(♂)보다 우수하였으며, 조사된 성장형질 전체에서 유의적인 차이(p<0.05)를 보였다. 육질에서도 pH, 보수력, 육색이 다른 비육돈 보다 유의적으로(p<0.05) 우수하였고, 돼지 육질의 표준이 되는 등심조지방 함량에서 YL(♀)×BD(♂)가 유의적으로 우수하였다. 교배조합별 육색에서는 YL(♀)×BD(♂)가 대체로 명도와 적색도가 높았으며, 지방산 조성에 있어서는 불포화 지방산의 비율이 높은 것으로 나타났다. 따라서, 성장형질에서는 YL(♀)×BD(♂)가 비교 대상의 교배조합에 비해 우수하였으며, 육질에서도 YL(♀)×D(♂) 보다 좋거나 같아 비육돈 교배조합(YLBD)으로서의 이용가치가 있을 것으로 사료된다. 하지만 본 연구의 경우 경남 첨단양돈연구소의 계통조성이 완료된 American Berkshire종을 이용하여 경남의 경우 경남 첨단양돈연구소를 활용하여 별도의 비용이 없이 YLBD를 생산이 가능하겠으나, 다른 지역의 경우 Berkshire의 계통 조성하여 활용할 경우 기존의 종료웅돈 Duroc종을 계통 조성하는 비용만큼 더 소요될 것이라 사료된다.

Keywords

References

  1. Aziz, M. A., Nishida, S., Suzuki, K. and Nishida, A. 2005. Estimation of direct and maternal genetic and permanent environmental effects for weights from birth to 356 days of age in a herd of Japanese Black cattle using random regression. J. Anim. Sci. 83:519-530
  2. Boldman, K. G., Kriese, L. A., Van Vleck, L. D., Van Tassell, C. P. and Kachman, S. D. 1995. A manual for use of MTDFREML. A set of programs to obtain estimates of variance and covariances. USDA, ARS
  3. Brown, M. A. and Brown, Jr. A. H. 2002. Relationship of milk yield and quality to preweaning gain of calves from Angus, Brahman and reciprocal-cross cows on different forage systems. J. Anim. Sci. 80:2522-2527
  4. Ferreira, G. B., MacNeil, M. D. and Van Vleck, L. D. 1999. Variance components and breeding values for growth traits from different statistical models. J. Anim. Sci. 77:2641-2650 https://doi.org/10.2527/1999.77102641x
  5. Fiss, C. F. and Wilton, J. W. 1993. Contribution of breed, cow weight, and milk yield to the preweaning, feedlot, and carcass traits of calves in three beef breeding system. J. Anim. Sci. 71: 2874-2884
  6. Freking, B. A. and Marshall, D. M. 1992. Interrelaionships of heifer milk production and other biological traits with production efficiency to weaning. J. Anim. Sci. 70:646-655 https://doi.org/10.2527/1992.703646x
  7. Gregory, K. E., Cundiff, L. V. and Koch, R. M. 1995a. Genetic and phenotypic (co)variances for production traits of intact male populations of purebred and composite beef cattle. J. Anim. Sci. 73:2227-2234
  8. Gregory, K. E., Cundiff, L. V. and Koch, R. M. 1995b. Genetic and phenotypic (co)variances for production traits of female populations of purebred and composite beef cattle. J. Anim. Sci. 73: 2235-2242
  9. Koots, K. R., Gibson, J. P., Smith, C. and Wilton, J. W. 1994. Analyses of published genetic parameters estimates for beef production traits: 1. Heritability. Anim. Breed. Abstr. 62:309-338
  10. Koots, K. R., Gibson, J. P. and Wilton, J. W. 1994. Analyses of published genetic parameters estimates for beef production traits: 1. Phenotypic and genetic correlations. Anim. Breed. Abstr. 62:825-853
  11. Mallinckrodt, C. H., Bourdon, R. M., Golden, B. L., Schalles, R. R. and Odde, K. G. 1993. Relationship of maternal milk expected progeny differences to actual milk yield and calf weanging weight. J. Anim. Sci. 71:335-362
  12. Meyer, K. 1992. Variance component due to direct and maternal effects for growth traits of Australian beef cattle. Livestock Prod. Sci. 31: 179-204 https://doi.org/10.1016/0301-6226(92)90017-X