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News

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

Introduction of HMW: The Haplotype Call for Early Onset Muscle Weakness Syndrome

CDCB and Holstein USA and National Association of Animal Breeders

November 15, 2023

The December 5, 2023, dairy cattle genetic evaluations will contain a new haplotype call for Early Onset Muscle Weakness Syndrome (HMW).

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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.

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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.

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December 2020: Changes to Evaluation System

Kristen Parker Gaddis and Paul VanRaden

December 1, 2020

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April 2020: Changes to Evaluation System

H Duane Norman and Paul VanRaden and George Wiggans

April 1, 2020

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December 2019: Changes to Evaluation System

Ezequiel Nicolazzi and Paul VanRaden and George Wiggans

December 1, 2019

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April 2019: Changes to Evaluation System

Paul VanRaden and George Wiggans

April 1, 2019

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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

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