Overview
Dubbing is the procedure of removing the comb, wattles and sometimes earlobes of poultry. Removing the wattles is sometimes called "dewattling".
Procedure
To perform dubbing, the tissues are first disinfected and, if available, an anesthetic is applied to limit pain. Sterile scissors or dubbing shears are used to cut the tissues off, and a styptic, an astringent chemical that reduces bleeding, is applied. The wounds are left uncovered. Some recommend dubbing should be done on day-old chicks whilst others advise waiting until the bird's comb is more developed.
Benefits
Dubbing is sometimes performed to limit damage caused by injury or frostbite. Dubbing for some breeds has become a tradition and is required for some birds to meet breed-specifications. Other reasons include removing combs which have become so large they prevent the bird from taking food into its mouth or making the head so heavy it sinks into the bird's chest.
In the US, the National Chicken Council (2003) listed dubbing of cockerels as one of the acceptable procedures that may cause short-term stress but which are necessary for the long-term welfare of the flock. Dubbing is also performed to prevent injuries from other birds or while being kept in pens.
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