A system comprising an animal management label, a pedometer, each provided with a transmitter and receiver device, and a smart tag for detecting movements of an animal provided therewith. The system comprises a plurality of readers for wirelessly reading out the label, and a central computer configured for communication with the readers. The system is configured for updating the label. The central computer is configured to supply update data the readers.;A random one of the readers transmits the update data when the label is within wireless reading distance.;The system comprises recording means for keeping a record of data received by the label. The random one of the readers resumes transmitting update data within, which update data according to the recording means was not yet received by the label.