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.
March 7, 2024
CDCB and USDA AGIL announce enhancements in the U.S. dairy genetic evaluations on April 2, 2024.
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.
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 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.
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.
December 1, 2020
August 1, 2020
A monthly newsletter, details genetic evaluation updates and industry news.