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Agenda
- Welcome (Dr. Gert Pedersen Aamand, ITC chair)
- The recommendations of the Working Group (Dr. Pete Sullivan, ITC member)
- General Discussion
Date and time:
11 February 2021, 14:00 to 15:30 CET.
In recent years a lot of effort has been put on the development of single step methods for national routine evaluations. Many countries participating in the MACE Interbull Service have implemented or are working toward implementing a single step procedure in their national evaluations.
One issue that these countries are or will be facing is that EBVs produced by the single step model do include genomic information and thus are no longer suitable to be submitted as input for the MACE evaluation.
Some of these countries requested Interbull to provide recommendations on new ways to produce genomic-free EBVs that could be used as input for the MACE evaluation.
To answer this request, the Interbull Technical Committee has appointed a dedicated Working Group which has investigated these issues and identified different strategies as possible solutions. The final recommendations from the Working Group will be presented to the Interbull Community during the “Genomic-Free EBV“ Webinar on Thursday, February 11th 2021, from 14:00 to 15:30 CET.
Interbull webinar: “Genomic-free EBV for MACE”
The Interbull webinar “Genomic-free EBV for MACE” was held on 11 February 2021 (14.00 – 15.30 CET) and chaired by Gert Pedersen Aamand (chair of Interbull Technical Committee).
The chair opened the webinar introducing the “Genomic-free EBV” working group and explaining working group’s activity, aimed at identifying new solutions to produce genomic-free EBVs that could be used as input for the MACE evaluation.
Pete Sullivan (member of Interbull Technical Committee) presented to the participants the recommendations from the working group.
The working group strongly advised against the use of ssGEBVs as input for the MACE evaluation and identified both long-term as well as short term solutions:
- Submit ssDYD instead of EBV to Interbull for MACE (long-term);
- Deregressed ssGEBV Proofs (long-term);
- Generate EBVs from unbiased pseudo-phenotypes (long-term);
- Generate EBVs from pre-adjusted phenotypes, using estimates of environmental effects from single step model (short-term);
- Generate EBV from a BLUP evaluation excluding genotypes (short-term).
The working group highlighted the need to keep working on the improvement of long-term solutions and recommended to the Interbull community the use of the two short-term solutions.
After an interesting discussion all the participants agreed on the solutions identified by the working group and no objections were raised.
The chair thanked the participants and closed the webinar.