Mechanical catching machines for broiler chickens offer potential welfare improvements over manual catching, but their welfare effects depend critically on machine design and operation speed.
Mechanical chicken catching machines represent a potentially welfare-positive technology — they can operate at consistent speeds without the fatigue-related quality deterioration that affects human catchers, and they can be designed to minimise specific injury types. However, the welfare benefit depends on machine design quality, operating speed, and litter conditions (wet litter clogs machines and increases injury rates). The assessment should compare the best machine practice against the best manual practice rather than comparing average outcomes. Investment in well-designed machines operated at appropriate speeds, combined with comprehensive monitoring of injury rates, represents the welfare-optimal approach.