Inbreeding in the Danish populations of five Nordic sheep breeds
Titel:
Inbreeding in the Danish populations of five Nordic sheep breeds
Auteur:
Sørensen, Anders Christian Norberg, Elise
Verschenen in:
Acta agriculturae Scandinavica. Section A, Animal science
Paginering:
Jaargang 58 (2008) nr. 1 pagina's 1-4
Jaar:
2008-03
Inhoud:
In Denmark there are small populations of five Nordic sheep breeds, two of which are Danish in origin. The purpose of this study was to estimate trends in inbreeding for these breeds. All five breeds have been recording pedigrees for decades, so pedigree completeness is adequate. The rate of inbreeding is more than 1% per generation in all breeds, and more than 2% per generation in the Danish breeds, which have no options for importing, if they aim to continue pure breeding. The Danish breeds have not allowed recent animals to contribute heavily, so the rate of coancestry is not too high (∼1% per generation). However, they could use more rotation of rams between flocks to reduce the rate of inbreeding.
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