News
CDCB delivers the latest news on genetic improvement, research and U.S. evaluations through its monthly newsletter, dairy media, and events.
August 2024 Changes: Impact on Evaluations
August 13, 2024
In the August 2024 evaluations, implemented changes had effects on all yield traits (Milk, Fat and Protein) and Heifer Livability, along with correlated traits of Productive Life and Cow Livability in some cases. Breed Base Representation (BBR) values were updated, with the annual reference population update and introduction of a revised SNP list.
August 2024 Evaluations: What’s New?
July 11, 2024
CDCB and USDA AGIL detail changes implemented for the triannual genetic evaluations on August 13, 2024, including 305-AA as the new standardized yield measurement, full implementation of Constructed IDs, Heifer Livability updates, Brown Swiss Rear Teat Placement trait, new SNP list, annual BBR update and inclusion of HH6 and JNS gene tests in haplotype calculations.
Introducing 305-AA: The New Standardized Yield Measurement
June 21, 2024
Beginning in June 2024, the Council on Dairy Cattle Breeding’s (CDCB) publication of 305-ME (Mature Equivalent) will be discontinued and replaced by 305-AA (Average Age) as the standardized yield estimate for U.S. dairy cows.
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.
December 2023 Evaluation Changes: What’s New?
November 16, 2023
Changes for the December 5, 2023, CDCB evaluations include updated imputation results for all breeds, new haplotype calls for early onset muscle weakness syndrome in Holsteins, and update to the haplotype calls for cholesterol deficiency in Holsteins.
Introduction of HMW: The Haplotype Call for Early Onset Muscle Weakness Syndrome
November 15, 2023
The December 5, 2023, dairy cattle genetic evaluations will contain a new haplotype call for Early Onset Muscle Weakness Syndrome (HMW).
August 2023 Evaluation Changes: What’s New?
July 6, 2023
A handful of changes are implemented for the U.S. genetic evaluations on August 8, 2023, as announced by the Council on Dairy Cattle Breeding and USDA Animal Genomics Improvement Laboratory.
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.
CDCB Connection
A monthly newsletter, details genetic evaluation updates and industry news.
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