News
CDCB delivers the latest news on genetic improvement, research and U.S. evaluations through its monthly newsletter, dairy media, and events.
National Dairy Genetic Index Update, Base Change Set for April 2025
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?
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
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 2022: Changes to Evaluation System
April 4, 2022
Three times a year, genetic evaluations are calculated for all the dairy animals in the U.S. database.
Research Updated: Pipeline for Hoof Health Data
March 23, 2022
The Council on Dairy Cattle Breeding (CDCB) is implementing a project to provide dairy producers with state-of-the-art knowledge and technologies to enhance hoof health and promote productivity and sustainability of the dairy enterprise.
More Breeds Need Genetic Evaluations for Stillbirth
January 6, 2022
Determining the effectiveness of genetic evaluations for stillbirth in additional U.S. dairy breeds was the research focus for CDCB intern, Anil Sigdel, in summer 2021.
December 2021: Changes to Evaluation System
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
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.
CDCB Connection
A monthly newsletter, details genetic evaluation updates and industry news.
Filter by Author
- View All
- Asha Miles
- Ben Rosen
- CDCB
- Corey Geiger for CoBank
- Corey Geiger for Hoard’s Dairyman
- Dan Null
- Derek Bickhart
- Ezequiel Nicolazzi
- George Wiggans
- H Duane Norman
- Holstein USA
- Jana Hutchinson
- Javier Burchard
- Jay Megonigal
- Jay Weiker
- Jeff O'Connell
- Jim Dickrell for Dairy Herd Management
- João Dürr, Ph.D.
- Joel Hastings for DairyVoice
- John Cole
- José Carrillo
- Kaori Tokuhisa
- Karen Lee for Progressive Dairyman
- Katelyn Allen
- Katelyn Allen for Hoard’s Dairyman
- Kent Weigel for Dairy Business
- Kristen Parker Gaddis
- Leigh Walton
- Lillian Bacheller
- Lindsey Worden
- Mahesh Neupane
- Murray Hunt for The Bullvine
- National Association of Animal Breeders
- Nick Wu
- Paul VanRaden
- Penn State University
- Rob Tempelman
- Rohith Shetty
- Sophie Eaglen
- Taylor Leach for Dairy Herd Management
- Taylor McWhorter
- Tom Lawlor
- USDA Animal Genomics and Improvement Laboratory