Skip to main content
Conference paper - Peer-reviewed, 2022

Mating allocations in Nordic Red Dairy Cattle using genomic information

Bengtsson, Christian; Bengtsson, Christian ; Stålhammar, H.; Thomasen, J.R.; Eriksson, Susanne; Fikse, W.F.; Strandberg, Erling

Abstract

In this study, we compared mating allocations in Nordic Red Dairy Cattle using genomic or pedigree information. We used linear programming to optimise different economic scores within each herd, considering genetic level, semen cost, the economic impact of recessive genetic defects, and genetic relationships. We found high correlations (≥0.83) between the pedigree and genomic relationship measures. The mating results showed that it was possible to reduce the different genetic relationships between parents with minimal effect on genetic level. Including the cost of known recessive genetic defects eliminated expression of genetic defects. It was possible to reduce genomic relationships between parents with pedigree information, but it was best done with genomic measures. Linear programming maximised the economic score for all herds studied within seconds, which means that it is suitable for implementation in mating software to be used by advisors and farmers.

Published in


Publisher: Wageningen Academic Publishers

Conference


World Congress on Genetics Applied to Livestock Production, 3-8 July 2022, Rotterdam, the Netherlands

Authors' information

VikingGenetics
Bengtsson, Christian (Bengtsson, Christian)
Swedish University of Agricultural Sciences, Department of Animal Breeding and Genetics
Stålhammar, H.
VikingGenetics
Thomasen, J.R.
VikingGenetics
Swedish University of Agricultural Sciences, Department of Animal Breeding and Genetics
Fikse, W.F.
Växa Sverige
Swedish University of Agricultural Sciences, Department of Animal Breeding and Genetics

UKÄ Subject classification

Animal and Dairy Science

URI (permanent link to this page)

https://res.slu.se/id/publ/118170