Studies on the prevalence of feather pecking in different commercial laying hen
systems and its welfare and economic impacts are reviewed in the following
paper. Current methods for controlling feather pecking include beak-trimming and
alterations to light regimes, but these methods have significant disadvantages
from the perspective of bird welfare. A substantial body of research has now
identified risk factors for feather pecking during both the rearing and laying
periods. It is argued that these findings can be translated into optimised
management practices that can prevent and control feather pecking whilst
simultaneously conferring welfare benefits. The genetic basis of feather pecking
is considered, and studies that suggest group selection techniques could produce
birds with a reduced tendency to feather peck in commercial flocks are
highlighted.