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Population structure, genetic diversity, and reproductive efficiency in the autochthonous Busha cattle breed

Author

Listed:
  • Aneta Piplica

    (Department of Animal Breeding and Livestock Production, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia)

  • Mato Čačić

    (Directorate for Livestock and Food Quality, Ministry of Agriculture, Forestry and Fisheries, Zagreb, Croatia)

  • Anamaria Ekert Kabalin

    (Department of Animal Breeding and Livestock Production, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia)

  • Maja Maurić Maljković

    (Department of Animal Breeding and Livestock Production, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia)

  • Ivan Vlahek

    (Department of Animal Breeding and Livestock Production, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia)

  • Velimir Sušić

    (Department of Animal Breeding and Livestock Production, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia)

  • Sven Menčik

    (Department of Animal Breeding and Livestock Production, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia)

Abstract

Autochthonous cattle breeds represent important resources of genetic diversity. The Busha cattle breed is reared in the Balkan Peninsula and is characterised by high adaptability, resilience, longevity, small body size, and low maintenance and production requirements. During the 36-year observation period, the total population of the autochthonous Busha cattle breed in the Republic of Croatia amounted to 10 411 animals. Pedigree completeness for the total population, considering the first parental generation, was 97.1%. The average inbreeding coefficient was 2.44%, ranging from zero to 42.6%, while the average relatedness coefficient was 3.56% in the total population. The effective population size, calculated in the reference population based on the individual increase in inbreeding, was 63.3. The probabilities of gene origin in the reference population were fe - 38.0, fa - 33.0, and fg - 25.4, indicating a loss of genetic variability due to genetic drift (fg/fe - 0.66) and a bottleneck (fe/fa - 1.15). In the population of the autochthonous Busha cattle breed, the effective number of ancestors (fa) was smaller than the effective number of founders (fe). Increased relatedness among animals was observed, which could affect the long-term conservation of the population.

Suggested Citation

  • Aneta Piplica & Mato Čačić & Anamaria Ekert Kabalin & Maja Maurić Maljković & Ivan Vlahek & Velimir Sušić & Sven Menčik, . "Population structure, genetic diversity, and reproductive efficiency in the autochthonous Busha cattle breed," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 0.
    • Handle: RePEc:caa:jnlcjs:v:preprint:id:138-2025-cjas
    DOI: 10.17221/138/2025-CJAS
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