Articles | Volume 66, issue 3
https://doi.org/10.5194/aab-66-245-2023
https://doi.org/10.5194/aab-66-245-2023
Original study
 | 
13 Sep 2023
Original study |  | 13 Sep 2023

Inbreeding in the Zwartbles breed population and its influence on meat production in the Czech Republic

Radek Filipčík, Daniel Falta, Dominika Sokolová, Martin Hošek, Vojtěch Pešan, and Tomáš Kopec

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Cited articles

Bessa, A. F. D., Duarte, I. N. H., Rola, L. D., Bernardes, P. A., Neto, S. G., Lobo, R. B., Munari, D. P., and Buzanskas, M. E.: Genetic evaluation for reproductive and productive traits in Brahman cattle, Theriogenology, 173, 261–268, https://doi.org/10.1016/j.theriogenology.2021.08.008, 2021. 
Boujenane, I., Chikhi, A., Ibnelbachyr, M., and Mouh, F. Z.: Estimation of genetic parameters and maternal effects for body weight at different ages in D'man sheep, Small Ruminant Res., 130, 27–35, https://doi.org/10.1016/j.smallrumres.2015.07.025, 2015. 
Cesarani, A., Mastrangelo, S., Congiu, M., Portolano, B., Gaspa, G., Tolone, M., and Macciotta, N. P. P.: Relationship between inbreeding and milk production traits in two Italian dairy sheep breeds, J. Anim. Breed. Genet., 140, 28–38, https://doi.org/10.1111/jbg.12741, 2023. 
Cortellari, M., Negro, A., Bionda, A., Grande, S., Cesarani, A., Carta, A., Macciotta, N., Biffani, S., and Crepaldi, P.: Using Pedigree and Genomic Data toward Better Management of Inbreeding in Italian Dairy Sheep and Goat Breeds, Animals, 12, 2828, https://doi.org/10.3390/ani12202828, 2022. 
da Silva, M., Malhado, C. H. M., Kern, E. L., Daltro, D. D., Cobuci, J. A., and Carneiro, P. L. S.: Inbreeding depression in Holstein cattle in Brazil, Rev. Bras. Zootecn., 48, e20170212, https://doi.org/10.1590/rbz4820170212, 2019. 
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Short summary
This study is focused on the development of the inbreeding coefficients in Zwartbles sheep in the Czech Republic. The effect of inbreeding on meat yield was investigated. There was a statistically significant increase in inbreeding coefficient between 1997–2021. A statistically significant effect of the inbreeding coefficient on weight at 100 d, musculus longissimus dorsi (MLD) thickness, and back fat thickness was found. A negative relationship between inbreeding and meat yield was found.
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