Gestation Length EBVs are estimates of genetic differences between animals in the length of time from the date of conception to the birth of the calf.
Gestation Length EBVs are calculated from the joining date and date of birth records for calves conceived by either artificial insemination (AI) or hand mating, and/or genomic information, and are expressed in day units.
Lower Gestation Length EBVs indicate an animal is expected to produce calves that are born with a shorter gestation length.