News

CDCB delivers the latest news on genetic improvement, research and U.S. evaluations through its monthly newsletter, dairy media, and events.

August 2025 Evaluation Changes: What’s New?

CDCB

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.


April 2024 Evaluation Changes: What’s New?

CDCB and USDA Animal Genomics and Improvement Laboratory

March 7, 2024

CDCB and USDA AGIL announce enhancements in the U.S. dairy genetic evaluations on April 2, 2024.


April 2020: Changes to Evaluation System

H Duane Norman and Paul VanRaden and George Wiggans

April 1, 2020


December 2019: Changes to Evaluation System

Ezequiel Nicolazzi and Paul VanRaden and George Wiggans

December 1, 2019


April 2019: Changes to Evaluation System

Paul VanRaden and George Wiggans

April 1, 2019


December 2018: Changes to Evaluation System

Lillian Bacheller and Paul VanRaden and Dan Null and Derek Bickhart and John Cole and Ben Rosen and Jeff O’Connell

December 1, 2018


December 2017: Changes to Evaluation System

Jana Hutchinson and Jay Megonigal and Ezequiel Nicolazzi and H Duane Norman and Kristen Parker Gaddis and Paul VanRaden and George Wiggans and Dan Null and John Cole and Leigh Walton and Rohith Shetty

December 1, 2017

Starting December 2017, the CDCB will publish the second Ayrshire haplotype affecting fertility. The publication of this important information for the Ayrshire breed is possible thanks to the research led by AGIL researches and the cooperation with CDN, who confirmed the preliminary results obtained in the US population.


August 2017: Changes to Evaluation System

CDCB and USDA Animal Genomics and Improvement Laboratory

August 1, 2017

Genetic evaluations of males and genomic predictions of both sexes are now provided for gestation length (GL) as a new trait expressed in days.


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CDCB Connection

A monthly newsletter, details genetic evaluation updates and industry news.