Division of Clinical Veterinary Services, Hospital for Small Animals, Royal (Dick) School of Veterinary Studies, Easter Bush Veterinary Centre, Roslin, Midlothian, UK.
Vet Rec. 2009 Oct 17;165(16):466-8. doi: 10.1136/vr.165.16.466.
Plasma total calcium, ionised calcium and albumin levels in Hermann's tortoises (Testudo hermanni), spur-thighed tortoises (Testudo graeca), marginated tortoises (Testudo marginata) and Horsfield's tortoises (Testudo horsfieldi) were investigated. The animals were captive adults maintained under natural unfiltered sunlight in the UK with no dietary sources of cholecalciferol. Analysis of total calcium data showed statistically significant seasonal elevations in females in August compared with March (P=0.003), and statistically significant elevations in females compared with males at all sampling points (March P=0.036, June P=0.003 and August P<0.0001). These differences in values became more prominent as the summer progressed. Albumin values did not appear significantly affected by season. However, males had significantly higher albumin levels than females in the August samples. A correlation between total calcium and ionised calcium was confirmed but there was no correlation between total calcium and albumin values. Total calcium levels were a poor indication of ionised calcium levels, which constituted between 18 and 57 per cent of the total calcium value.
我们研究了赫曼陆龟（Testudo hermanni）、希腊陆龟（Testudo graeca）、缘翘陆龟（Testudo marginata）和印度星龟（Testudo horsfieldi）的血浆总钙、离子钙和白蛋白水平。这些动物是在英国自然未过滤的阳光下被圈养的成年个体，没有任何胆钙化醇的饮食来源。总钙数据分析显示，与 3 月相比，8 月雌性的总钙水平有统计学意义上的季节性升高（P=0.003），而且在所有采样点，雌性的总钙水平均显著高于雄性（3 月 P=0.036，6 月 P=0.003，8 月 P<0.0001）。随着夏季的推进，这些差异变得更加明显。白蛋白值似乎没有受到季节的显著影响。然而，在 8 月的样本中，雄性的白蛋白水平显著高于雌性。总钙和离子钙之间的相关性得到了确认，但总钙和白蛋白值之间没有相关性。总钙水平不能很好地反映离子钙水平，离子钙占总钙值的 18%至 57%。
