Anders Christian Sørensen

Most of the Long-Term Genetic Gains from Optimum-Contribution Selection can be Realised with Restrictions Imposed

Publikation: KonferencebidragPaperForskningpeer review

Dokumenter

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  • Mark Henryon, Danish Agriculture and Food Council, Pig Research Center, Copenhagen, Denmark, School of Animal Biology, University of Western Australia, Danmark
  • Tage Ostersen, Danish Agriculture and Food Council, Pig Research Center, Copenhagen, Denmark, Danmark
  • Birgitte Ask, Danish Agriculture and Food Council, Pig Research Center, Copenhagen, Denmark, Danmark
  • Anders Christian Sørensen
  • Peer Berg, Nordic Genetic Resource Centre, Norge
Text: We reasoned that optimum-contribution selection (OCS) with restrictions imposed during optimisation will realise most of the long-term genetic gains realised by OCS without restrictions. We used stochastic simulation to estimate long-term rates of genetic gain realised by breeding schemes using OCS without and with restrictions imposed during optimisation. In all but a few exceptions, the long-term rates of genetic gain realised by OCS with restrictions was 95-100% of the rates realised by OCS without restrictions. It was only when the restrictions became overly strict that we began to lose gain. We also present evidence from the Danish pig-breeding scheme for Duroc that practical implementation of OCS with restrictions increases genetic gains and decreases rates of inbreeding. OCS has gone from a selection method that was difficult to apply in practice, to one that is readily applicable to most breeding schemes
OriginalsprogEngelsk
Udgivelsesår17 aug. 2014
Antal sider3
StatusUdgivet - 17 aug. 2014
Begivenhed10th World Congress on Genetics Applied to Livestock Production (WCGALP) - The Westin Bayshore, 1601 Bayshore Drive, Vancouver, BC V6G 2V4, Vancouver, Canada
Varighed: 17 aug. 201422 aug. 2014
Konferencens nummer: 10th

Konference

Konference10th World Congress on Genetics Applied to Livestock Production (WCGALP)
Nummer10th
LokationThe Westin Bayshore, 1601 Bayshore Drive, Vancouver, BC V6G 2V4
LandCanada
ByVancouver
Periode17/08/201422/08/2014

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