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Mating allocations in Nordic Red Dairy Cattle using genomic information

Bengtsson, Christian and Bengtsson, Christian and Stalhammar, H. and Thomasen, J. R. and Eriksson, Susanne and Fikse, Freddy and Strandberg, Erling (2022). Mating allocations in Nordic Red Dairy Cattle using genomic information. Journal of Dairy Science. 105 :2 , 1281-1297
[Research article]

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Abstract

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.

Authors/Creators:Bengtsson, Christian and Bengtsson, Christian and Stalhammar, H. and Thomasen, J. R. and Eriksson, Susanne and Fikse, Freddy and Strandberg, Erling
Title:Mating allocations in Nordic Red Dairy Cattle using genomic information
Series Name/Journal:Journal of Dairy Science
Year of publishing :2022
Volume:105
Number:2
Page range:1281-1297
Number of Pages:17
ISSN:0022-0302
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 402 Animal and Dairy Science > Animal and Dairy Science.
Keywords:genomic relationships, pedigree relationships, mating program, linear programming
URN:NBN:urn:nbn:se:slu:epsilon-p-115105
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-115105
Additional ID:
Type of IDID
DOI10.3168/jds.2021-20849
ID Code:27139
Faculty:VH - Faculty of Veterinary Medicine and Animal Science
Department:(VH) > Dept. of Animal Breeding and Genetics
Deposited By: SLUpub Connector
Deposited On:18 Feb 2022 11:25
Metadata Last Modified:18 Feb 2022 11:31

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