Error in the August 2025 yield evaluation

Unfortunately, an error has been detected in the August yield evaluation. Genomic information of some newly genomic tested animals was not correctly processed in the genetic evaluation.

Affected animals constitute from 589 Holstein bulls, 79 Jersey bulls and 7868 Holstein females, whose SNP information was drawn from NAV SNP data base in July. The published genomic breeding values for these animals tend to be overestimated.

New genomic evaluation is now underway and new genomic breeding values will be published 2.9.2025

 

We apologize any inconvenience this has caused.

 

NAV Evaluation

The third NAV routine evaluation for this year took place as scheduled. NAV Bull Search has been updated with new EBV’s and GEBV’s.

NAV Beef Search is also updated with new beef x dairy breeding values.

In this evaluation weight factors were slightly modified in udder index for RDC. There is now more emphasis on teat length and thickness, while the weight on udder depth has been slightly reduced. Read more about the changes from a paper Fine-tuning of the udder index in RDC.

Read more from the NAV newsletter.

New Interbull breeding values are updated to NAV Interbull Search.