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Association between polymorphism within rabbit IGF1 gene and slaughter weight in Termond White rabbits

Author

Listed:
  • Anna Migdał

    (Department of Genetics, Animal Breeding and Ethology, University of Agriculture in Krakow, Krakow, Poland)

  • Sylwia Ewa Pałka

    (Department of Genetics, Animal Breeding and Ethology, University of Agriculture in Krakow, Krakow, Poland)

  • Michał Kmiecik

    (Department of Genetics, Animal Breeding and Ethology, University of Agriculture in Krakow, Krakow, Poland)

  • Olga Jarnecka

    (Department of Genetics, Animal Breeding and Ethology, University of Agriculture in Krakow, Krakow, Poland)

  • Ewelina Semik-Gurgul

    (Department of Animal Molecular Biology, National Research Institute of Animal Production, Balice, Poland)

  • Łukasz Migdał

    (Department of Genetics, Animal Breeding and Ethology, University of Agriculture in Krakow, Krakow, Poland)

Abstract

Growth traits belong to the most important economic traits in livestock. One of the genes involved in vertebrate growth and development is insulin-like growth factor 1 (IGF1). Therefore, in our study we hypothesised that within the sequence of rabbit IGF1 gene it is possible to identify a polymorphism that may influence growth, carcass or meat traits in rabbits. We identified 6 polymorphisms (g.89259430T>C; g.89259338C>G; g.89259328T>C; 89210029A>G; 89210349C>G and g.89194199C>T) within introns of the IGF1 gene. One polymorphism, g.89194199C>T, was analysed using polymerase chain reaction high-resolution melting (PCR-HRM). We performed the association analysis on 370 animals (males to females 1 : 1) of different breeds: New Zealand White × Flemish Giant crossbreds (NZW × FG), Termond White (TW) and Flemish Giant (FG). Results showed that for growth and slaughter traits in TW populations a significant association (P = 0.003) was found for slaughter weight (SW) when CT genotypes showed significantly higher values compared to CC genotypes (2 878.0 g ± 107.0 and 2 678.0 g ± 34.0, respectively). For TW rabbits we found a significant association (P = 0.009) for dissected bone weight in hind leg (HB) when CT genotypes (127.0 g ± 5.8) had significantly higher values compared to CC genotypes (112.0 g ± 2.4). For carcass traits and physical characteristics of meat we found for musculus longissimus lumborum in TW rabbits that the b* parameter value 45 min after slaughter was significantly higher (P = 0.001) for CT genotypes (1.88 ± 0.05) compared to CC genotypes (0.05 ± 0.02). We conclude that the use of identified SNP in breeding may be limited to some breeds.

Suggested Citation

  • Anna Migdał & Sylwia Ewa Pałka & Michał Kmiecik & Olga Jarnecka & Ewelina Semik-Gurgul & Łukasz Migdał, 2025. "Association between polymorphism within rabbit IGF1 gene and slaughter weight in Termond White rabbits," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 70(1), pages 33-41.
    • Handle: RePEc:caa:jnlcjs:v:70:y:2025:i:1:id:59-2024-cjas
    DOI: 10.17221/59/2024-CJAS
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