Drupal-Bibcite0<style face="normal" font="default" size="100%">Evaluation of carbon dioxide anaesthesia for the castration of male suckling piglets by stress hormone concentrations, behaviour and clinical factors</style><style face="normal" font="default" size="100%">Evaluation of carbon dioxide anaesthesia for the castration of male suckling piglets by stress hormone concentrations, behaviour and clinical factors</style>