Modern poultry farming relies on lighting management to affect breeds' growth, reproduction, and health.
Turkey Breeding: Precision Aids Reproduction
Turkeys react strongly to light. Breeding hens should gradually reduce light exposure from 23 hours to 8-10 hours of low-intensity light (≤ 5 lux) during growth to control sexual maturity and ensure proper bone and body development. Light exposure must be quickly increased to 14-16 hours and over 100 lux after entering the laying period to stimulate gonadotropin release by the pituitary gland and start and maintain egg production. Controlling light duration and intensity can boost breeding egg hatching and fertilization. Turkeys benefit most from red light (600-700nm) during breeding.
Controlling Molt and Egg Production in Poultry
Waterfowl production relies on lighting to manage forced molting and egg production. To induce quick and simultaneous molting in ducks/gooses after laying season, use short-term darkness (3-7 days) or extremely low lighting (≤1 lux) and controlled feeding. A stepwise or one-time increase in lighting to 16-17 hours (80-100 lux) can re-stimulate ovarian activity and start the second egg production cycle after the molt. Short lighting (12-14 hours) is used to discourage activity, reduce energy use, and encourage weight gain in ducks/gooses during rearing. Low lighting causes feather pecking, therefore use 10-20 lux.
Breeding pheasants: optimal lighting in high-density environments
Light-sensitive pheasants grow quickly and attain sexual maturity early. To familiarize the chicks with the surroundings and maintain enough food and water intake, a 23-24 hour light cycle with 30-50 lux is needed during brooding (1-3 weeks). To delay sexual maturity, raise laying weight at the start of production, and prolong egg-laying, a 10-12 hour short light cycle with a low intensity (5-10 lux) should be used during growth (4-5 weeks). At least 16 hours of 50-lux light should be provided while laying. The multi-layer cage system must have >80% light homogeneity on each tier to avoid a drop in egg-laying due to insufficient light at the bottom. Pheasants like blue-green light (450-570nm), which boosts activity and feed conversion.
Specialized poultry and breeding uses
Guinea fowls, pheasants, and quails need light management. Gradually increasing light duration before breeding season can encourage seasonal reproduction. Intermittent lighting (1 hour of light: 1 hour of darkness) for young birds (1-10 days old) reduces sudden death syndrome and increases digestive system development in breeding stock. To prevent restlessness and dehydration in hatcheries, use faint red light (<10 lux) at specified phases, such as following the drop plate.
Safety and system implementation key points
Poultry lighting must be stable and reliable. Select IP67 lamps to resist moisture, dust, and ammonia corrosion. LED bulbs are chosen for their tunable spectrum, energy savings, and long lifespan (>50,000 hours). Install lighting uniformly to eliminate dark spots and glare. Automate lights with a timer to reduce errors. Keep lamp covers clean, monitor illuminance meters, and maintain illumination intensity. Circuits must be individually grouped and overload protected.
Summary
A systematic lighting management plan should be adjusted to poultry breed, production goals, and facility conditions. To maximize poultry productivity and animal welfare, monitoring flock behavior and production data and adjusting lighting factors is required.
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