Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 445605
Title Blood vitamin D(3) metabolite concentrations of adult female bearded dragons (Pogona vitticeps) remain stable after ceasing UVb exposure
Author(s) Oonincx, D.G.A.B.; Wal, M.D. van de; Bosch, G.; Stumpel, J.B.G.; Heijboer, A.C.; Leeuwen, J.P.T.M. van; Hendriks, W.H.; Kik, M.
Source Comparative Biochemistry and Physiology. B, Biochemistry and Molecular Biology 165 (2013)3. - ISSN 1096-4959 - p. 196 - 200.
DOI http://dx.doi.org/10.1016/j.cbpb.2013.04.006
Department(s) Laboratory of Entomology
Animal Nutrition
PE&RC
WIAS
Publication type Refereed Article in a scientific journal
Publication year 2013
Keyword(s) 25-hydroxyvitamin d-3 concentrations - ultraviolet-radiation - sunlight - photosynthesis - system - values - season
Abstract Vitamin D deficiency can lead to several health problems collectively called metabolic bone disease (MBD). One commonly kept reptile species prone to develop MBD if managed incorrectly is the bearded dragon (Pogona vitticeps). This study aimed to determine the extent to which adult female bearded dragons fed a diet low in vitamin D can use stored vitamin D and its metabolites to maintain plasma 25(OH)D(3) and 1,25(OH)(2)D(3) concentrations after discontinuing UVb exposure. Blood samples of healthy adult female bearded dragons, exposed to UVb radiation for over 6 months were collected (day 0) after which UVb exposure was discontinued for 83 days and blood was collected. Blood plasma was analysed for concentrations of total Ca, total P, ionized Ca, uric acid, 25(OH)D(3) and 1,25(OH)(2)D(3). There was no significant change in plasma 25(OH)D(3) and 1,25(OH)(2)D(3) concentrations during the study. While total Ca and P in whole blood was found to significantly decrease over time (P <0.0088 and 0.0016, respectively), values were within the reference range. Plasma ionized Ca tended (P = 0.0525) to decrease during the study. Adult female bearded dragons, previously exposed to UVb, are able to maintain blood vitamin D metabolite concentrations when UVb exposure is discontinued for a period of up to 83 days.
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