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April 2021: Changes to Evaluation System
Jana Hutchinson and Paul VanRaden
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.
Leigh Walton and Rohith Shetty and Jana Hutchinson and Jay Megonigal and Ezequiel Nicolazzi and H Duane Norman and Kristen Parker Gaddis and Paul VanRaden and George Wiggans and Dan Null and John Cole
December 1, 2017
Starting December 2017, the CDCB will publish the second Ayrshire haplotype affecting fertility. The publication of this important information for the Ayrshire breed
is possible thanks to the research led by AGIL researches and the cooperation with CDN, who confirmed the preliminary results obtained in the US population.