Induced farrowing is important for monitoring ongoing farrowings (to reduce stillborns, ensure colostrum, and revive dead piglets), ensuring they occur during the daytime, and reducing the variation in the day of farrowing among sows within rooms. Average gestation length should still be determined because of the possibility of herd variation from factors such as changing parity distribution and changes in breeding management. It may be necessary to stop inducing for a period to re-establish the average gestation length. Programs such as PigCHAMP help to analyze the induction program. Induction is working if it is helping to save piglets and helping to predict when sows will farrow. Consistent procedures must be followed (either through auditing or standard operating procedures) to ensure consistency in injection. Other variables to consider include gestation day and hour of injection.