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Blood samples of 86 captive panther chameleons (Furcifer pardalis) were collected in January and August from the ventral coccygeal vein in order to establish reference intervals of clinical healthy individuals under similar husbandry conditions for plasma biochemistry and hematology for this species. Significant differences were found in phosphorus, glucose, total protein, albumin, and white blood cell count between males and females in both seasons. Calcium, alanine aminotransferase, aspartate aminotransferase, and lactate dehydrogenase varied in only one season between genders. Significant differences between summer and winter values were present in both genders for uric acid, calcium, phosphorus, glucose, total protein, creatine kinase, and albumin. Additionally, females showed seasonal variations for alanine aminotransferase and aspartate aminotransferase whereas packed cell volume varied in males. Gravid females had significantly higher body weights and increased values for uric acid, calcium, phosphorus, alanine aminotransferase, total protein, and albumin. Cytomorphologic characteristics of blood cells in stained blood films were evaluated to serve as additional parameters for hematology.

BackgroundDespite improvements in habitational conditions, kidney disease is relatively common in tortoises.ObjectivesPurpose of this study was the establishment of Symmetrical dimethylarginine (SDMA) reference values for clinically healthy Hermann's Tortoises.AnimalsClinically healthy Hermann's Tortoises (n = 131) were included in the period from October 2017 to September 2019.MethodsCreatinine and other biomarkers were tested at IDEXX Laboratories, Germany using residual blood samples from Hermann's tortoises. SDMA was measured with the IDEXX test and verified by liquid chromatography-mass spectrometry at IDEXX Laboratories, USA.ResultsSDMA values ranged from 1 to 21 μg/dl (n = 131) for the IDEXX SDMA Test and SDMA values ranged from 1 to 17 μg/dl (n = 82) for LC-MS. For the comparison of the two measuring systems, the following results were obtained R2 = 0.75 (p < 0.001).Conclusion and Clinical ImportanceSDMA can be measured in Hermann's Tortoises and the reference values range in clinically healthy animals is comparable to that of dogs and cats.