“…Carbon dioxide (CO 2 ) lasers have been implemented to elicit behavioural responses to thermal nociceptive thresholds in various species including rats (Kao and Jaw, 2012), sheep (Guesgen et al, 2011), pigs (Di Giminiani et al, 2013;Herskin et al, 2009) and cattle (Ting et al, 2010;Veissier et al, 2000). More recently the CO 2 laser technique was validated as a tool for measuring thermal nociceptive thresholds in domestic cats (Felis catus) (Farnworth et al, 2013).…”