Use of butorphanol as a local anaesthetic for pain management in calves undergoing umbilical hernia repair - Interlandi, Claudia; Spadola, Filippo; Neve, Veronica C.; Tabbì, Marco; Di Pietro, Simona; Giudice, Elisabetta; Macrì, Daniele; Costa, Giovanna L. (Frontiers in Veterinary Science, 2024)