News
CDCB delivers the latest news on genetic improvement, research and U.S. evaluations through its monthly newsletter, dairy media, and events.
What Role Does Inbreeding Play in Genetic Base Changes?
April 3, 2025
Genetic base changes include both corrections for observed genetic trends in the population and adjustments to account for future inbreeding. After the April 2025 base change, observed changes in Predicted Transmitting Abilities (PTAs) for individual animals may not match the base change values as closely as they have in the past. This is not due to any errors in the evaluation. It reflects Expected Future Inbreeding (EFI) changes in the population that are larger than they’ve been in the past.
Constructed ID’s: Eliminating Pedigree Dead Ends
February 1, 2023
Knowing an animal’s ancestry several generations back is certainly the goal for breeders; however, there are instances where animals have a gap in their pedigree. To fill in more pedigree gaps, CDCB is implementing a new solution starting in February 2023.
April 2021: Changes to Evaluation System
April 1, 2021
Several small adjustments to fertility traits editing will be introduced with the April 2021 evaluation to better account for late-term abortions. Fertility credits for traits Heifer Conception Rate (HCR) and Cow Conception Rate (CCR) now treat the last service as a failure instead of success if the next calving is coded as an abortion.
April 2020: Changes to Evaluation System
April 1, 2020
December 2019: Changes to evaluation system
December 1, 2019
December 2019: Changes to Evaluation System
December 1, 2019
August 2019: Changes to Evaluation System
August 1, 2019
April 2019: Changes to Evaluation System
April 1, 2019
CDCB Connection
A monthly newsletter, details genetic evaluation updates and industry news.
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