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Advanced Discussion
Lighting/Enclosures
Are we overexposing our dragons to UV?
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[QUOTE="kingofnobbys, post: 1895905, member: 81934"] I agree 100% …. over supplementing with calcium and vitD3 fortified calcium and vitD3 fortified multivitamins is very poor bearded dragon husbandry. The production of natural VitD3 tends to produce a more metabolically active isomer of VitD3 and it's precursers , and the effect of serum VitD3 is to "buffer" the metabolisation of dietary Ca . [url=https://www.ncbi.nlm.nih.gov/pubmed/10876100]https://www.ncbi.nlm.nih.gov/pubmed/10876100[/url] Giving artificial VitD3 , which is a different mix of isomers of the molecule to that produced "naturally" can lead to hypercalcemia and vitD toxicity. In the reptiles body this is very finely balanced and very easy to upset leading to several health issues for a dragon that can be difficult to spot even by an expert reptile vet and his pathologist. I'll leave others who are more expert in biochemistry than me to expand on this. The long and the short of it is that a bearded dragon will stop basking when >> it's warmed up sufficiently >> it's received sufficient UVA & UVB irradiation to meet it's biological needs. But the pet dragon has no control over it's oral supplement intake short of clamping it's mouth shut. [/QUOTE]
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Advanced Discussion
Lighting/Enclosures
Are we overexposing our dragons to UV?
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