News
CDCB delivers the latest news on genetic improvement, research and U.S. evaluations through its monthly newsletter, dairy media, and events.
December 2025 Evaluation Changes: What’s New?
November 5, 2025
The December triannual evaluations include health and type trait edits as well as operational efficiency improvements.
August 2025 Evaluation Changes: What’s New?
July 10, 2025
The August 2025 triannual genetic evaluations include the introduction of a new trait for Holsteins, the implementation of the five-year base change for calving traits, and updates to two other traits.
CDCB Evaluation Changes: April 2025
February 25, 2025
Updates for the April 1, 2025, CDCB evaluations include the every-five-year base change, revision to the merit indexes, Breed Base Representation (BBR) reference population update and normalization of type trait reliability calculations in non-Holstein breeds.
Introducing Net Merit 2025
January 31, 2025
The Lifetime Net Merit (NM$) index by CDCB ranks dairy animals based on their combined genetic merit for economically important traits. The 2025 NM$ update revises some methods to estimate trait values and many income and cost variables, such as milk prices, feed requirements, and reproductive options. The 2025 revision does not include genetic evaluations for any new traits.
CDCB Connection
A monthly newsletter, details genetic evaluation updates and industry news.
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- Asha Miles
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- USDA Animal Genomics and Improvement Laboratory