Pig farming special lighting: A crucial tool for output improvement

Scientific lighting control affects pig herd health, growth, and reproduction. Special pig farming lamps must meet spectral, intensity, and protection standards.

Sowing backfill: A 150-200 lux light intensity and 16-hour daily light duration can stimulate the hypothalamus-pituitary-gonadal axis, hasten puberty by 10-14 days, and enhance estrus detection.
For weaned sows, apply 16-18 hours of high light stimulation (≥ 200 lux) immediately after weaning to reduce the time between weaning and estrus by 1-3 days and enhance ovulations.
Pregnant sows: Maintain a constant 14-hour light exposure (100-150 lux) to reduce stress-induced embryo loss. The lamps must be installed to fulfill the standard for light intensity above the sow's laying area.

Resting in pigsty: Provide 8 hours of mild lighting (< 50 lux) from 3 days before delivery to end of breastfeeding to rest sows and prevent piglet crushing.
Piglet Playground: With 20-22 hours of local intense light (200 lux) and 380-420nm UV-A light source, piglets' skin synthesizes vitamin D3, absorbs calcium and phosphorus, and uses colostrum better. Set the infrared heat preservation lamp and illumination lamp independently.

Weaned piglets (3-10 weeks) need 18 hours of 150-200 lux light:
Improvement in behavior: Reduce environmental-induced fighting and tail-biting.
Intestinal development, feeding time, and frequency are increased by feeding stimulation.
Priority is given to 450-570nm blue-green LEDs. This wavelength band boosts piglet activity and feed conversion by 5–8%.

During fattening (over 10 weeks), minimize activity-related energy expenditure:
Lighting plan: 8-10 hours of moderate-intensity light (50-100 lux) for feed area uniformity.
Maintain 14-16 hours of darkness (<5 lux) daily for proper melatonin secretion and immunological function.
System to control lighting: Use a progressive dimming controller (≥ 15 minutes) to avoid panic and turmoil in the audience caused by unexpected lighting changes.

Spectrum adaptation: The dedicated LED bulbs must switch between blue-green (for conservation) and full-spectrum (for reproduction) modes.
Protection level: IP66 (dust-proof and high-pressure water jet-resistant) and ammonia-resistant sealing materials. The metal parts are 316 stainless steel or reinforced engineered polymers.
Anti-collision design: Pigs eat and collide, so install heavy-duty metal guardrails or embed them in the ceiling.
Controlling light precisely: Set digital timers for segmented and grouped control and calibrate the light intensity on the ground (for sows) and feed trough height (for fattening piglets) with an illuminance meter.

Maintain light transmission by cleaning the lampshade's dust and oil stains monthly.
The fixtures' light attenuation is checked quarterly. They should be replaced immediately if light flux drops 15% or higher.
Record piglet estrus rate, weaning estrus interval, and daily weight increase to evaluate the lighting scheme.
The circuit has independent overload and leakage protection. In damp environments, it uses 24V safe voltage.

Pig farming illumination must be tailored to the production stage, barn structure, and temperature. Monitoring pig herd behavior and production data and dynamically modifying lighting factors are key technology supports for breeding efficiency. A small-scale lighting comparison test is advised before installation.

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