Which of the following management practices is carried out to prevent cannibalism in intensively reared poultry?

Debeaking (beak trimming) involves cutting the upper beak of poultry to prevent pecking injuries and cannibalism, which is common under intensive management conditions. Culling is removal of unproductive birds, dubbing is removal of the comb and wattles, and caponization is castration of male poultry.