Dr Ferguson Zoo Med Interview

A Conversation With the Creator of Ferguson Zones Dr. Gary Ferguson

Zoo Med Laboratories recently released an interesting interview with the creator of Ferguson Zones, Dr. Gary Ferguson.

Dr. Ferguson conducted many experiments to help further the understanding of the importance of UVB lighting versus vitamin D supplementation. The results of which are fundamental in how we care for our reptiles today.

Ferguson Zones are basically ranges of UV Indexes (UVI) that reptiles can be classified into. By assigning captive reptiles with their appropriate Ferguson Zone, it enables us to more accurately provide our pets with the correct UV Index (through UVB lighting) to be as healthy as possible.

These are the Ferguson Zones;

  • Zone 1: 0.4 – 0.7 UVI (shade)
  • Zone 2: 0.7 – 1.0 UVI (mostly partial sunlight)
  • Zone 3: 1.0 – 2.6 UVI (mostly full sunlight)
  • Zone 4: 2.6 – 3.5+ UVI (midday full sunlight)

Gary Ferguson changed the way we think about UVB! Listen to his wisdom about UVB, Vitamin D3, and his passion for panther chameleons by watching the video below.

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