The average gestation period for Dorper and White Dorper sheep averages 145 days. Type in the exposure or breeding date in the “Start Date”. Then type in “145” in the blank “days” field. Hit calculate. This is an average gestation period; therefore, it is recommended to observe sheep up to 10 days prior to the expected date.
American Dorper Sheep Breeders' Society
Official U.S. Registry of Dorper and White Dorper Sheep