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Acierno, M. J., Mitchell, M. A., Roundtree, M. K., & Zachariah, T. T. (2006). Effects of ultraviolet radiation on 25-hydroxyvitamin d(3) synthesis in red-eared slider turtles (trachemys scripta elegans). American Journal of Veterinary Research, 67(12), 2046–2049. 
Added by: Admin (14 Aug 2008 20:32:44 UTC)
Resource type: Journal Article
BibTeX citation key: Acierno2006
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Categories: General
Keywords: Emydidae, Ernährung = nutrition, Physiologie = physiology, Schildkröten = turtles + tortoises, Sehvermögen = vision, Trachemys, Trachemys scripta
Creators: Acierno, Mitchell, Roundtree, Zachariah
Collection: American Journal of Veterinary Research
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Objective-To determine whether there are increased concentrations of 25-hydroxyvitaminn D(3) in red-eared slider turtles (Trachemys scripta elegans) after exposure to UV radiation. Animals-12 yearling turtles recently removed from aestivation. Procedures-Turtles were randomly allocated to 2 groups (6 turtles/group). An initial blood sample was collected from all turtles for measurement of 25-hydroxyvitamin D(3) concentrations. Turtles of 1 group were then provided no supplemental lighting, whereas turtles of the other group were exposed to full-spectrum coil bulbs at a distance of 22.86 cm. The UV-A and UV-B radiation generated by the supplemental lighting was measured by use of a radiometer-photometer at weekly intervals. Measurements were collected 2.54 and 22.86 cm from the bulb surface. The study was continued for a 4-week period. At the end of the study, a second blood sample was collected from all turtles for measurement of 25-hydroxyvitamin D(3). Results-Mean +/- SD 25-hydroxyvitamin D(3) concentrations differed significantly between turtles provided supplemental UV radiation (71.7 +/- 46.9 nmol/L) and those not provided UV radiation (31.4 +/- 13.2 nmol/L). Conclusions and Clinical Relevance-Appropriate husbandry recommendations for raising and maintaining red-eared slider turtles should include use of sunlight that is unobstructed by UV-B filtering material or provision of an artificial source of UV-B radiation.
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