Pedigree analysis in the Polish Red cattle population
Autor: | O. Jarnecka, W. Jagusiak, Edyta Bauer |
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Rok vydání: | 2020 |
Předmět: |
Polish Red cattle
040301 veterinary sciences Population Context (language use) Biology SF1-1100 0403 veterinary science Effective population size Domestic breed media_common.cataloged_instance Animals Inbreeding education Selection (genetic algorithm) media_common Population Density education.field_of_study Genetic diversity 0402 animal and dairy science Genetic Variation 04 agricultural and veterinary sciences 040201 dairy & animal science Breed Animal culture Pedigree Animal Science and Zoology Cattle Poland Demography |
Zdroj: | Animal, Vol 15, Iss 6, Pp 100238-(2021) |
ISSN: | 1751-732X |
Popis: | The objective of this study was to describe the population structure and inbreeding level of the population of Polish Red Cattle (PRC). The structure of the breed was analysed in the context of the existing genetic resources conservation programme. The level of genetic diversity and the effective population size were also determined. The analyses were carried out based on pedigree records of 9 170 animals. Data and pedigree information were collected during the time period of 1950–2014. Records were collected by the National Research Institute of Animal Production in Balice, Poland. The population structure was analysed using the CFC programme. All the animals were grouped into five classes according to their inbreeding coefficient: the first class included non-inbred animals; and the next classes included inbred animals 0% 30%. The average inbreeding in PRC population was 4% and there were 2 182 (23.8%) inbred animals. The study also included the determination of ancestral paths for the PRC population. The longest ancestral path (LAP) consisted of 12 generations (three animals) while only 229 animals (2.53%) had an LAP comprising at least 10 generations. Therefore, a need exists, particularly in PRC as a small local breed, to manage selection and mating decisions to control future coancestry and inbreeding, which would lead to better handling of the effective population size. The study results showed the possibility of disrupting the balance of the structure of a small population like PRC. Hence, endangered populations need to be monitored on a continuous basis. |
Databáze: | OpenAIRE |
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