As autumn arrives and the day–night temperature gap widens, flocks are highly susceptible to cold stress. Many farms monitor only temperature and humidity while overlooking the supporting lighting adjustments. An unsuitable photoperiod or abrupt light changes compound temperature stress, causing egg production to slip and pecking disorders to rise. Today, we share the key lighting management points tailored to the autumn and winter season.

Temperature swings are a major test for autumn and winter farming. Cold stress directly affects the birds' endocrine system and disrupts their laying rhythm. As a key environmental factor, lighting cannot stay unchanged all year round. The core principle: minimize sudden light changes, keep the photoperiod stable, and strictly control light intensity.

 Keep the Photoperiod Stable — No Arbitrary Changes

For flocks already in stable lay, do not casually lengthen or shorten the total daily light hours. Fix the lights-on and lights-off times, and prioritize a gradual dimming/brightening mode that simulates natural dawn and dusk, so sudden lighting or blackouts do not startle the flock. On nights with large temperature swings, never turn lights on temporarily in the middle of the night — this will disturb the birds.

 Maintain Appropriate Intensity and Avoid Harsh Light

In autumn and winter, houses are more closed and ventilation is weaker; strong light easily triggers feather pecking and vent pecking. Keep laying birds at the recommended light intensity during the production period, ensure even illumination, and pay special attention to dark corners in the cage system. In multi-tier cage systems, prioritize meeting the light target on the lower tiers, avoiding areas that are too bright alongside those that are too dim.

 Choose the Right Spectrum to Lower Stress

Prefer a breed-specific spectrum matched to the birds. For laying hens and Muscovy ducks, a 3000K warm-white light provides soft, gentle illumination that calms the flock, helping to stabilize feed intake and egg production. Avoid cool-white light with a high blue-light proportion, which tends to make birds more restless.

 Coordinate Lighting with Temperature Control

Schedule heating and ventilation operations to avoid overlapping with the morning and evening light transitions. Stagger lighting adjustments from environmental control: do not increase ventilation while the lights are gradually coming on, as cold air combined with light changes doubles the stress risk.

The essence of autumn and winter lighting management lies not in frequent changes, but in stability — a fixed photoperiod, smooth light transitions, and uniform intensity. Only by coordinating lighting with temperature management can you hold laying performance steady and reduce the losses caused by stress.

 Good Light Technology — focused on biological lighting for poultry, we deliver customized spectra combined with intelligent dimming solutions to help farms sail smoothly through the season.