Companion Animals

Reptile UV-B and Welfare: Meeting Photonic Needs

Reptiles require UV-B radiation for vitamin D synthesis and calcium metabolism. Without appropriate lighting, metabolic bone disease causes severe, chronic welfare harm to captive reptiles.

Key Facts

Welfare Considerations

UV-B radiation enables reptiles to synthesise vitamin D3 in their skin, essential for calcium metabolism. Without adequate UV-B, metabolic bone disease (MBD) causes skeletal deformities, pathological fractures, and neurological dysfunction. UV-B bulbs degrade invisibly — producing visible light after losing UV output — requiring regular replacement every 6-12 months. UV-B requirements vary by species; desert species require higher UVI than forest species. Outdoor access providing natural sunlight is the most welfare-positive option where climate permits.

What You Can Do