Document Detail


Nutritional metabolic bone disease in juvenile veiled chameleons (Chamaeleo calyptratus) and its prevention.
MedLine Citation:
PMID:  20881081     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Nutritional metabolic bone disease (NMBD) is one of the most frequently observed pathological conditions in herpetoculture. To develop guidelines for NMBD prevention in growing veiled chameleons (Chamaeleo calyptratus), 56 hatchlings were divided into 6 groups [group UV, with UVB exposure; group No: no supplements; group CaAUV: with calcium (Ca), vitamin A, UVB; group CaA: with Ca, vitamin A; group CaADUV: with Ca, vitamin A, cholecalciferol, UVB; and group CaAD, with Ca, vitamin A, cholecalciferol] and reared for 6 mo on locust-based diets. The nutrient composition of the locusts' diet and the locust-based diet for the chameleons was determined. The diagnosis included the detailed description of clinical findings, histopathology, measurements of serum Ca, 25-hydroxycholecalciferol (25-OHD(3)), liver 25-OHD(3), vitamin A, bone mineral density, and bone mineral concentration. Chameleons that received no dietary supplementation of Ca, vitamin A, and cholecalciferol developed NMBD. When Ca and vitamin A were supplemented, the chameleons did not develop NMBD, independently of additional UVB and dietary cholecalciferol. The best prevention for NMBD was achieved by chameleons that received locusts gut-loaded with 12% Ca and dusted with 250,000 IU/kg (75 mg/kg) vitamin A and 25,000 IU/kg (0.625 mg/kg) cholecalciferol plus provision of long (10 h/d), low irradiation exposure (3-120 μW/cm(2)) to UVB. Chameleons that were fed diets low in vitamin A, cholecalciferol, and Ca were diagnosed with fibrous osteodystrophy. We noticed an interaction of vitamin A and cholecalciferol supplementation in the storage of vitamin A in the liver and formation of colon calcifications. From these findings, recommendations for the rearing of juvenile chameleons were derived.
Authors:
Stefan Hoby; Christian Wenker; Nadia Robert; Thomas Jermann; Sonja Hartnack; Helmut Segner; Claude-P Aebischer; Annette Liesegang
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-09-29
Journal Detail:
Title:  The Journal of nutrition     Volume:  140     ISSN:  1541-6100     ISO Abbreviation:  J. Nutr.     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-10-21     Completed Date:  2010-11-09     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0404243     Medline TA:  J Nutr     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1923-31     Citation Subset:  IM    
Affiliation:
Center for Fish and Wildlife Health, Institute of Animal Pathology, Vetsuisse Faculty, University of Berne, Berne 3012, Switzerland.
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MeSH Terms
Descriptor/Qualifier:
Animal Husbandry / methods,  standards*
Animals
Behavior, Animal / radiation effects
Bone Density / radiation effects
Bone Diseases, Metabolic / diagnosis,  pathology,  prevention & control,  veterinary*
Bone and Bones / pathology,  radiation effects
Calcifediol / blood,  metabolism
Calcinosis / prevention & control,  veterinary
Calcium / administration & dosage,  blood
Cholecalciferol / administration & dosage
Colon / pathology,  radiation effects
Colonic Diseases / prevention & control,  veterinary
Diet / veterinary*
Grasshoppers / chemistry,  growth & development
Liver / metabolism
Lizards* / blood,  growth & development,  metabolism
Nymph / chemistry,  growth & development
Ultraviolet Rays
Vitamin A / administration & dosage,  metabolism
Chemical
Reg. No./Substance:
11103-57-4/Vitamin A; 19356-17-3/Calcifediol; 67-97-0/Cholecalciferol; 7440-70-2/Calcium

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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