Terhi Vahlsten

NAV Genomic Evaluation and NAV Beef Evaluation

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The latest NAV routine genomic evaluation took place as scheduled. NAV carried out genomic prediction for Holstein, RDC and Jersey. Genomic breeding values of bulls are updated to NAV Bull Search after each evaluation.

NAV has also released breeding values for purebred beef bulls and cows. Beef breeding values are updated to NAV Beef Search. A new approach is implemented to estimate reliabilities for AAN, CHA, HER, LIM, and SIM for weight, growth, and carcass traits. This method includes genomic information directly into the reliability calculations, rather than relying only on pedigree and performance records.

Read more from the NAV newsletter.

NAV Evaluation

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The first NAV routine evaluation this year took place as scheduled. The NAV Bull Search has been updated with the new EBV’s and GEBV’s. NAV Beef Search is also updated with new beef x dairy breeding values.

Results from three new genetic traits were added to NAV Bull Search. Holstein Haplotype 5 (HH5) and Cholesterol deficiency (HDC) for Holstein and Trimethylaminuria, also called shrimp gene (FMO3) for RDC. More information about genetic traits is found on NAV homepage.

Currently AMC results for RDC are not available in NAV Bull Search. False carrier results have been detected and problem with the wrong results is not yet solved. The results will return to NAV Bull Search when the reliability of the results is guaranteed.

Read more of the newest breeding evaluation from the NAV newsletter.

NAV Dairy Cattle Workshop 2026

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The NAV Dairy Cattle Workshop was held on 20 January in Copenhagen, bringing together stakeholders for discussions on NAV’s strategy 2026–2028, the upcoming NTM revision, and current Nordic research in methane emissions and climate-smart breeding. The workshop also included updates from EBE and breed-group discussions on proposed weights of Saved Feed in NTM. Workshop presentations are available via the link below.

NAV Dairy Cattle Workshop 2026 – Presentations