The increasing awareness of the need for a reliable identification system for livestock from birth to the slaughterhouse, in order to monitor farm animals and their movements, has been proposed for small ruminants (EC Reg. 21/2004,EC Reg. 933/2008; EC Reg. 759/2009) based on the unique identification of each animal, including radio frequency identification (RFID) technology among the systems on farms, as reported in Annex I of the EC Reg. 21/2004.