Humane, Bloodless, Drug Free castration – Callicrate Banders Callicrate Banders, recommended by veterinarians and animal handling specialists worldwide since 1995, are the most humane and effective castration tools on the market. Due to emphasis on high-tension ligation, the banders excel at achieving a tight band every time. Easy-to-read tension indicators ensure the correct tightness that is essential to minimizing discomfort and reducing physical complications. Bander castration works well on cattle, goats, alpacas and sheep, and any other species with a scrotum. Although the bander is mainly used for castration, it has many uses, including removing horns and treating prolapses.