News

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

August 2024 Changes: Impact on Evaluations

Ezequiel Nicolazzi

August 13, 2024

In the August 2024 evaluations, implemented changes had effects on all yield traits (Milk, Fat and Protein) and Heifer Livability, along with correlated traits of Productive Life and Cow Livability in some cases. Breed Base Representation (BBR) values were updated, with the annual reference population update and introduction of a revised SNP list.


Announcing QDisc

Ezequiel Nicolazzi

February 10, 2023

CDCB announces a new service, QDisc, or quick discovery of close relatives. This quick-turnaround service uses the ICAR-defined parentage SNP to discover close relatives.


April 2022: Changes to Evaluation System

Ezequiel Nicolazzi

April 4, 2022

Three times a year, genetic evaluations are calculated for all the dairy animals in the U.S. database.


August 2020: Changes to Evaluation System

Ezequiel Nicolazzi and Paul VanRaden

August 1, 2020


December 2019: Changes to Evaluation System

Ezequiel Nicolazzi and Paul VanRaden and George Wiggans

December 1, 2019


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.


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