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.


National Dairy Genetic Index Update, Base Change Set for April 2025

CDCB

December 20, 2024

Two significant updates will be implemented in the April 2025 dairy genetic evaluations published by the Council on Dairy Cattle Breeding (CDCB) – a revision to the lifetime merit indices and a genetic base change. The CDCB Board of Directors approved these revisions at their December 18, 2024 meeting.


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.


New Research Published on Residual Feed Intake

CDCB

November 1, 2022

Research by collaborators from five universities, CDCB and USDA AGIL was published in the November 1, 2022, Frontiers in Genetics: Impact of epistasis effects on the accuracy of predicting phenotypic values of residual feed intake in U.S. Holstein cows.


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


Showing page: 1 of 2

CDCB Connection

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