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. 2019 Jan;90(1):23-28.
doi: 10.1111/asj.13120. Epub 2018 Oct 28.

Estimation of genetic parameters for farrowing traits in purebred Landrace and Large White pigs

Shinichiro Ogawa  1 , Ayane Konta  2 , Makoto Kimata  3 , Kazuo Ishii  4 , Yoshinobu Uemoto  1 , Masahiro Satoh  1
Affiliations

Estimation of genetic parameters for farrowing traits in purebred Landrace and Large White pigs

Shinichiro Ogawa et al. Anim Sci J. 2019 Jan.

Abstract

Genetic parameters were estimated for six reproductive traits related to farrowing events in Landrace and Large White pigs; total number born (TNB), number born alive (NBA), number stillborn (NSB), total litter weight at birth (LWB), mean litter weight at birth (MWB), and gestation length (GL). We analyzed 62,534 farrowing records for 10,637 Landrace dams and 49,817 farrowing records for 8,649 Large White dams. Estimated heritabilities of TNB, NBA, NSB, LWB, MWB, and GL by single-trait repeatability model analyses were 0.12, 0.12, 0.08, 0.18, 0.19, and 0.29, respectively, in Landrace, and 0.12, 0.10, 0.08, 0.18, 0.16, and 0.34, respectively, in Large White. Genetic correlation between NBA and NSB was unfavorable: 0.20 in Landrace and 0.33 in Large White. Genetic correlations of GL with the other five traits were weak: from -0.18 with NSB to -0.03 with NBA in Landrace, and from -0.22 with NSB to -0.07 with NBA in Large White. LWB had a highly favorable genetic correlation with NBA (0.74 in both breeds), indicating the possibility of using LWB for the genetic improvement of NBA.

Keywords: farrowing traits; female pigs; genetic parameter; number born alive; repeatability model.

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References

    1. Arango, J. , Misztal, I. , Tsuruta, S. , Culbertson, M. , & Herring, W. (2005). Threshold‐linear estimation of genetic parameters for farrowing mortality litter size, and test performance of Large White sows. Journal of Animal Science, 83(3), 499–506. https://doi.org/doi: 10.2527/2005.833499x - PubMed
    1. Blasco, A. , Bidanel, J. P. , & Haley, C. (1995). Genetics and neonatal survival In Varley M. A. (Ed.), The Neonatal Pig: Development and Survival (pp. 17–38). Wallingford, Oxon, UK: CAB International.
    1. Damgaard, L. H. , Rydhmer, L. , Løvendahl, P. , & Grandinson, K. (2003). Genetic parameters for within‐litter variation in piglet birth weight and change in within litter variation during suckling. Journal of Animal Science, 81(3), 604–610. https://doi.org/doi: 10.2527/2003.813604x - PubMed
    1. David, I. , Garreau, H. , Balmisse, E. , Bilon, Y. , & Canario, L. (2017). Multiple‐trait structured antedependence model to study the relationship between litter size and birth weight in pigs and rabbits. Genetics Selection Evolution, 49(1), 11 https://doi.org/doi: 10.1186/s12711‐017‐0288‐3 - PMC - PubMed
    1. Farkas, J. , Curik, I. , Csató, L. , Csörnyei, Z. , Baumung, R. , & Nagy, I. (2007). Bayesian inference of inbreeding effects on litter size and gestation length in Hungarian Landrace and Hungarian Large White pigs. Livestock Science, 112(1), 109–114. 10.1016/j.livsci.2007.01.160 10.1016/j.livsci.2007.01.160 - DOI

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