News

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

Connecting with Jay Weiker

Jay Weiker

October 13, 2022

Jay Weiker, Chair of the CDCB Board of Directors, shares the CDCB progress and priorities of the past year in the newly-published 2022 Activity Report.


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.


December 2021: Changes to Evaluation System

Kristen Parker Gaddis and Paul VanRaden

December 1, 2021

Genetic evaluations for Residual Feed Intake (RFI) were improved using variance adjustments and a higher estimated heritability. The RFI records are now adjusted to have equal variance across herds and across first versus later parities.


August 2021: Changes to Evaluation System

Mahesh Neupane and Kristen Parker Gaddis and Paul VanRaden and Rob Tempelman

August 1, 2021

The new Lifetime Net Merit (NM$) including Feed Saved (FSAV), Heifer Livability (HLIV) and Early First Calving (EFC), along with a number of new parameters and assumptions, will be introduced in the August 2021 evaluation.


December 2020: Changes to Evaluation System

Kristen Parker Gaddis and Paul VanRaden

December 1, 2020


August 2020: Changes to Evaluation System

Ezequiel Nicolazzi and Paul VanRaden

August 1, 2020


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


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