dehorner

For older calves, usually under eight months of age, the horns are starting to grow attached so a cup dehorner or a saw is used.

Breeding horned and hornless together functions as a genetic dehorner.

They are also used as a genetic dehorner as the polled gene is passed on as a dominant trait.

"Juanito rode to Nuestra Señora to borrow a dehorner for that long-horned bull that's been raising so much Hell.