Similar to other animals birds rely on external environmental and internal metabolic status and body condition cues to time reproduction External cues are mostly linked to seasons and depending on lat

that allow for more precise and efficient lighting management. The chapter also touches on the potential impact of artificial lighting on the behavior and welfare of laying hens, and suggests areas for further research to optimize lighting management for both productivity and animal welfare. Overall, understanding the role of lighting in the reproductive biology of poultry is crucial for successful management of commercial egg production, and can potentially lead to improvements in the sustainability and welfare of the industry