News
CDCB delivers the latest news on genetic improvement, research and U.S. evaluations through its monthly newsletter, dairy media, and events.
CDCB Keeps Pace with Advancing Genomic Technology Through Integration of Genotyping-by-Sequencing
June 5, 2025
CDCB has certified its first sequencing-based laboratory for data submission.
CDCB Evaluation Changes: April 2025
February 25, 2025
Updates for the April 1, 2025, CDCB evaluations include the every-five-year base change, revision to the merit indexes, Breed Base Representation (BBR) reference population update and normalization of type trait reliability calculations in non-Holstein breeds.
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.
Recumbency in Holstein Calves
April 3, 2023
Researchers at Penn State University have been collaborating with colleagues at USDA’s Agricultural Research Service to study a new genetic defect in Holstein cattle. This defect is characterized by otherwise healthy animals that are unable to stand. This condition, currently called calf recumbency, has proven to be more complex than other known genetic defects.
April 2023 Evaluation Changes: What’s New?
March 7, 2023
The Council on Dairy Cattle Breeding and USDA Animal Genomics Improvement Laboratory are implementing a series of changes with the triannual U.S. evaluations on April 4, 2023.
Brown Swiss Fertility Haplotype BH14
March 7, 2023
BH14 has been added to the list of genomic haplotypes reported in the U.S., following USDA AGIL analysis of records in the CDCB database. Routine publication of BH14 status will support breed fertility improvement by allowing appropriate selection and mating of males and females.
Accreditation for Parentage Verification Extended by ICAR
February 10, 2023
CDCB has been re-accredited as a DNA Data Interpretation Center for parentage verification by ICAR. This certification is part of CDCB’s service to U.S.-based genomic nominators and facilitates the export of U.S. genetics.
Publication: Feeding Behavior Traits Associated with Feed Efficiency
October 13, 2022
The September 2022 Journal of Dairy Science published a paper by researchers from CDCB, University of Wisconsin-Madison and Michigan State University, examining feeding behavior as an indicator trait for feed efficiency.
CDCB Connection
A monthly newsletter, details genetic evaluation updates and industry news.
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