A space management system for livestock producers is provided where the turn over date of the space is determined by dynamically taking into account the rate of feed intake, a starting weight, a target market weight, a feed to gain ratio and factors effecting feed intake and feed to gain ratio. The dynamic measure comprises periodic measurement of remaining feed in inventory. The system preferably includes feed inventory management capabilities that include setting a date on which to order more feed and an amount of feed necessary and, preferably, a reminder system for generating reminders to order if the order is not made. Finally, the system takes into account load out time and cleaning/preparation needed when determining a turn over date.
