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Mating allocations in Nordic Red Dairy Cattle using genomic information

Journal of dairy science, 2022-02, Vol.105 (2), p.1281-1297 [Peer Reviewed Journal]

2022 American Dairy Science Association ;The Authors. Published by Elsevier Inc. and Fass Inc. on behalf of the American Dairy Science Association®. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). ;ISSN: 0022-0302 ;ISSN: 1525-3198 ;EISSN: 1525-3198 ;DOI: 10.3168/jds.2021-20849 ;PMID: 34799119

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  • Title:
    Mating allocations in Nordic Red Dairy Cattle using genomic information
  • Author: Bengtsson, C. ; Stålhammar, H. ; Thomasen, J.R. ; Eriksson, S. ; Fikse, W.F. ; Strandberg, E.
  • Subjects: Animal and Dairy Science ; Animals ; Cattle - genetics ; Female ; Genome ; genomic relationships ; Genomics ; Genotype ; Husdjursvetenskap ; linear programming ; mating program ; Pedigree ; pedigree relationships ; Phenotype ; Reproduction
  • Is Part Of: Journal of dairy science, 2022-02, Vol.105 (2), p.1281-1297
  • Description: In this study, we compared mating allocations in Nordic Red Dairy Cattle using genomic information. We used linear programming to optimize different economic scores within each herd, considering genetic level, semen cost, the economic impact of recessive genetic defects, and genetic relationships. We selected 9,841 genotyped females born in Denmark, Finland, or Sweden in 2019 for mating allocations. We used 2 different pedigree relationship coefficients, the first tracing the pedigree 3 generations back from the parents of the potential mating and the second based on all available pedigree information. We used 3 different genomic relationship coefficients, 1 SNP-by-SNP genomic relationship and 2 based on shared genomic segments. 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 measures, but it was best done with genomic measures. Linear programming maximized 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.
  • Publisher: United States: Elsevier Inc
  • Language: English
  • Identifier: ISSN: 0022-0302
    ISSN: 1525-3198
    EISSN: 1525-3198
    DOI: 10.3168/jds.2021-20849
    PMID: 34799119
  • Source: MEDLINE
    SWEPUB Freely available online
    DOAJ Directory of Open Access Journals
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