Companion Animal Welfare

Reptile UV-B Lighting and Welfare

Adequate UV-B lighting is essential for reptile welfare in captivity, with deficiency causing metabolic bone disease and chronic suffering in many commonly kept species.

Key Facts

UV-B radiation enables reptiles to synthesise vitamin D3 essential for calcium metabolism
Metabolic bone disease from UV-B deficiency is extremely common in captive reptiles
Bearded dragons, chameleons, and tortoise species have the highest UV-B requirements
UV-B bulbs degrade and must be replaced every 6-12 months even if still producing visible light
Outdoor access provides optimal UV-B exposure for temperate species during summer

Welfare Considerations

Metabolic bone disease from UV-B deficiency causes bone deformities, fractures, neurological problems, and chronic pain. It is entirely preventable with appropriate lighting and represents one of the most common causes of preventable suffering in captive reptiles.

What You Can Do

Research UV-B requirements thoroughly before acquiring any reptile species
Replace UV-B bulbs on schedule even when they appear to be working
Provide the strongest appropriate UV-B lighting for species with high requirements