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...
Layer Flock Depopulation with Better Bird and Worker Outcomes.pdf
Many birds see light differently than humans, and there’s evidence that supplying red or blue light can influence hen growth and productivity. In a new study, poultry scientists share how red or blue light affects hen growth, egg production, egg quality, behavior and hormone concentration. ...
Red white or blue - The challenges of switching light wavelengths during egg production.pdf