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Type of publication: Journal Article
Type of document: Full Paper

Year: 2011

Authors: Jekl, V; Gumpenberger, M; Jeklova, E; Hauptman, K; Stehlik, L; Knotek, Z

Title: Impact of pelleted diets with different mineral compositions on the crown size of mandibular cheek teeth and mandibular relative density in degus (Octodon degus).

Source: Vet Rec. 2011; 168(24):641

Authors Vetmeduni Vienna:

Gumpenberger Michaela
Knotek Zdenek

Vetmed Research Units
University Clinic for Small Animals, Clinical Unit of Diagnostic Imaging
University Clinic for Small Animals, Clinical Unit of Internal Medicine Small Animals

The impact of pelleted diets with different mineral compositions on the crown size of the mandibular cheek teeth, as well as the mandibular bone and cheek teeth density, in degus (Octodon degus) was investigated. A total of 28 animals were randomly divided into four groups and fed different calcium or phosphorous dietary content, in the presence or absence of UV light, for 14 months. Dental radiographs and CT images of the head were taken, and the crown size of premolar and molar teeth was recorded. Apical and coronal crown elongation of all cheek teeth and significantly smaller relative cheek teeth and mandibular densities were recorded in degus fed a high-phosphorus diet with an improper calcium:phosphorus ratio. A diet with a calcium:phosphorus ratio of 1:1 was also responsible for the rapid development of dental disease with subsequent severe health impairment.

Keywords Pubmed: Animal Feed/analysis
Bone Density/drug effects
Bone Density/radiation effects
Calcium, Dietary/administration & dosage
Calcium, Dietary/pharmacology*
Mandible/drug effects
Mandible/radiation effects
Molar/drug effects*
Molar/radiation effects
Phosphorus, Dietary/administration & dosage
Phosphorus, Dietary/pharmacology*
Rodent Diseases/etiology*
Stomatognathic Diseases/etiology
Stomatognathic Diseases/veterinary*
Tooth Crown*/drug effects
Tooth Crown*/radiation effects
Ultraviolet Rays/adverse effects

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