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

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

USDA Animal Genomics and Improvement Laboratory

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.

Announcing QDisc

Ezequiel Nicolazzi

February 10, 2023

CDCB announces a new service, QDisc, or quick discovery of close relatives. This quick-turnaround service uses the ICAR-defined parentage SNP to discover close relatives.

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.

Publication: Genomic Selection in U.S. Dairy Cattle


September 9, 2022

Frontiers in Genetics published a review by George Wiggans and José Carrillo on September 9, 2022: Genomic Selection in U.S. Dairy Cattle.

New Collaboration for Dairy Breed Improvement


August 18, 2022

The Dairy Breed Improvement Collaboration has been launched to benefit breeders and support genetic progress in the Ayrshire, Brown Swiss, Guernsey, and Milking Shorthorn breeds.

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