amputation
removal of a body extremity by trauma, prolonged constriction, or surgery
autotomy
self-defense behavior in which an animal sheds body parts
disarticulation
amputation or separation at a joint
debeaking
The trimming of a bird's beak, usually performed on domesticated birds
traumatic amputation
removal of a body extremity due to an accident or combat
livestock dehorning
process of removing the horns of livestock
tail docking
practice of removing a portion of an animal's tail
forequarter amputation
amputation of the arm, shoulder, and collarbone