News

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

Connecting With João Dürr

João Dürr, Ph.D.

November 3, 2022

João Dürr reviewed the past year and described the CDCB vision in the CEO Column from the 2022 Activity Report.


Connecting with João Dürr

João Dürr, Ph.D.

January 6, 2022

To start the new year, CEO João Dürr previews CDCB goals and expectations for 2022.


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.


April 2021: Changes to Evaluation System

Jana Hutchinson and Paul VanRaden

April 1, 2021

Several small adjustments to fertility traits editing will be introduced with the April 2021 evaluation to better account for late-term abortions. Fertility credits for traits Heifer Conception Rate (HCR) and Cow Conception Rate (CCR) now treat the last service as a failure instead of success if the next calving is coded as an abortion.


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


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