A truck bed divider apparatus for use with a bed of a pickup truck or other cargo carrying bed of a motor vehicle. The system accepts data from other systems or data entry related to movement and location of animals, certification of caretakers, management compliance statements, and documents pertaining to herd health. A controller controls the rotation by the rotation unit based on the matching value calculated by the matching value calculation unit. The projections each include an outermost surface portion that is positioned for contacting a discrete portion of the sheet and for entering a corresponding recess on the opposite roll.