This study from The Journal of Applied Poultry Research had workers utilize specialized carts (to crate hens for easy transport outside of the barn) and portable blue lights (to illuminate the barns during collection). Although using blue light did not reduce stress or fearfulness, the researchers did find that hens depopulated under blue light were half as likely to sustain a fracture when compared to the control group.
#InterpretiveSummary#TheJournalofAppliedPoultryResearch#Depopulation#Stress#BlueLight#Fracture