A contribution to age determination of cheetahs (Acinonyx jubatus) based on radiographic analysis of the skull and postcranial morphology

dc.contributor.authorSchmidt, Martin J.
dc.contributor.authorSteenkamp, Gerhardus
dc.contributor.authorFailing, Klaus
dc.contributor.authorCaldwell, Peter
dc.contributor.authorKirberger, Robert M.
dc.date.accessioned2020-08-24T15:00:38Z
dc.date.available2020-08-24T15:00:38Z
dc.date.issued2019-06
dc.descriptionS1 Table. Measured parameters in cheetah skull and skeleton.
dc.descriptionS1 Formula. Ready to use formula for age determination.
dc.description.abstractThe aim of this retrospective cross-sectional study was to present comprehensive information about the age-dependent change of skeletal characteristics in captive cheetahs with known age and to assess the benefit of these variables for age estimation in this species. Radiographs of 162 known-age captive and semi-captive cheetahs were retrospectively examined and age-related changes of skull, axial and appendicular skeletal systems were documented. Metric and non-metric variables were used. These parameters were checked for the best correlation with age using a multiple stepwise regression analysis. An overview about the time frames, in which ossification centers appeared and physeal closure occurred is presented. Multiple stepwise regression analysis revealed the status of closure of the coronal suture, the maximum length of the frontal sinus, the condylobasal-, hard palate, and facial length are most significantly correlated with age. Together with the pulp size of the upper canine, these values can be used for an age approximation in cheetahs.en_ZA
dc.description.departmentCompanion Animal Clinical Studiesen_ZA
dc.description.librarianpm2020en_ZA
dc.description.urihttp://www.plosone.orgen_ZA
dc.identifier.citationSchmidt MJ, Steenkamp G, Failing K, Caldwell P, Kirberger RM (2019) A contribution to age determination of cheetahs (Acinonyx jubatus) based on radiographic analysis of the skull and postcranial morphology. PLoS ONE 14(6): e0217999. https://doi.org/10.1371/journal.pone.0217999.en_ZA
dc.identifier.issn1932-6203 (online)
dc.identifier.other10.1371/journal.pone.0217999
dc.identifier.urihttp://hdl.handle.net/2263/75877
dc.language.isoenen_ZA
dc.publisherPublic Library of Scienceen_ZA
dc.rights© 2019 Schmidt et al. This is an open access article distributed under the terms of the Creative Commons Attribution License.en_ZA
dc.subjectAnimalsen_ZA
dc.subjectFemaleen_ZA
dc.subjectMaleen_ZA
dc.subjectSkullen_ZA
dc.subjectDiagnostic imagingen_ZA
dc.subjectCheetah (Acinonyx jubatus)en_ZA
dc.subjectAge determinationen_ZA
dc.subjectSkeletonen_ZA
dc.titleA contribution to age determination of cheetahs (Acinonyx jubatus) based on radiographic analysis of the skull and postcranial morphologyen_ZA
dc.typeArticleen_ZA

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