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한국동물자원과학회지 = Journal of animal science and technology v.52 no.3, 2010년, pp.187 - 190   피인용횟수: 1
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

Estimation of Genetic Parameters for Direct and Maternal Effects on Litter Size and Teat Numbers in Korean Seedstock Swine Population

Song, Guy-Bong    (Korean Animal Improvement Association, College of Agriculture & Life Science, Hankyong National University   ); Lee, Jun-Ho    (Department of Animal Life and Environmental Science, College of Agriculture & Life Science, Hankyong National University   ); Lee, Deuk-Hwan    (Department of Animal Life and Environmental Science, College of Agriculture & Life Science, Hankyong National University  );
  • 초록

    The objective of this study was to estimate genetic parameters for total number of born (TNB), number of born alive (NBA) and teat numbers (TN) of Landrace and Yorkshire breeds in Korean swine population using multiple trait animal model procedures. Total numbers of 4,653 records for teat numbers and 8,907 records for TNB and NBA collected from 2004 to 2008 on imported breeding pigs and their litter size records were used in this study. To find the appropriate model for estimation of genetic parameters (heritabilities and genetic correlations), five statistical models (two models for reproductive traits, two models for teat numbers, one model for combining these traits) considering only direct additive genetic effects, including maternal effects were used and Akaike information criteria (AIC) of each two models for reproductive traits and teat trait were compared. The means and standard deviations of TNB, NBA, and TN were $11.52{\pm}3.34$ , $10.55{\pm}2.96$ and $14.30{\pm}0.83$ , respectively. Estimated heritabilities for TNB and NBA traits using the model which considered only additive genetic effect were low (0.06 and 0.05, respectively). However, estimated heritabilities considering maternal genetic effects were a little bit higher than that of the model considering only additive genetic effect (0.09 for TNB and NBA, respectively). Estimated heritability for TN using the model which considered only additive genetic effect was 0.40. However, estimated heritability of direct genetic effects from a model considering maternal genetic effect was high (0.60). All results of AIC statistics, the models considering maternal effect was more appropriate than the models considering only additive genetic effect. Genetic correlations of direct additive genetic effect between litter size (TNB, NBA) and teat numbers were low (-0.18 and -0.14, respectively). However, genetic correlations of maternal effect between litter size (TNB, NBA) and teat numbers were a little bit higher than those of direct additive genetic effect (0.08 and 0.16, respectively).


  • 주제어

    Pig .   Teat numbers .   Genetic parameters .   Maternal effects.  

  • 참고문헌 (13)

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    3. Chen, P., Baas, T. J., Mabry, J. W., Dekkers, J. C. M. and Koehler, K. J. 2002. Genetic parameters and trends for litter traits in U.S. Yorkshire, Duroc, Hampshire, and Landrace pigs. J. Anim. Sci. 81:46-53. 
    4. Fernandez, A., Toro, M., Rodriguez, C. and Silio, L 2004. Heterosis and epistasis for teat number and fluctuating asymmetry in crosses between Jiaxing and Iberian pigs. Heredity (2004) 93, 222-227. 
    5. Frank, D. Enfield and Rempel, W. E. 1961. Inheritance of Teat Number and Relationship of Teat Number to Various Maternal Traits in Swine J. Anim. Sci. 20:. 
    6. Mckay, R. M. and Rahnefeld, G. W. 1990. Heritability of teat number in swine. Can. J. Anim. Sci. 70:425. 
    7. Misztal, I. 2001. BLUPF90 family of programs. http://nce.ads.uga.edu/-ignacy/newprograms.html 
    8. Patterson, H. D. and R. Thompson. 1971. Recovery of interblock information when block sizes are unequal, Biometrika 58:545-554. 
    9. Pumfrey, R. A., Johnson, P. K., Cunningham, P. J. and Zimmerman, D. R. 1980. Inheritance of teat number and it's relationship to maternal tratis in swine. J. Anim. Sci. 50:1057. 
    10. Roehe, R. and Kennedy, B. W. 1993. The Influence of Maternal Effects on Accuracy of Evaluation of Litter Size in Swine. J. Anim. Sci. 71:2353-2364. 
    11. Roehe, R. and Kennedy, B. W. 1993. Effect of selection for maternal and direct genetic effects on genetic improvement of litter size in swine J. Anim. Sci. 71:2891-2904. 
    12. Skjervold, H. 1963. Inheritance of teat number in swine and the relationship to performance. Acta Agric. Scand. 13:323. 
    13. Su, G., Lund, M. S. and Sorensen, D. 2007. Selection for litter size at day five to improve litter size at weaning and piglet survival rate. J. Anim. Sci. 82:1385-1392. 
  • 이 논문을 인용한 문헌 (1)

    1. Lee, Deukhwan ; Son, Jihyun 2013. "Estimation of Genetic Parameters for Gestation Length, Wean to First Service, Litter Size and Stillborn Piglets in a Closed Nucleus Swine Breeding Herd" 한국동물자원과학회지 = Journal of animal science and technology, 55(5): 389~398     

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