SERUM VITAMIN D AND SELECTED BIOMARKERS OF CALCIUM HOMEOSTASIS IN ASIAN ELEPHANTS (ELEPHAS MAXIMUS) MANAGED AT A LOW LATITUDE.

IF 0.7 4区农林科学 Q3 VETERINARY SCIENCES

Journal of Zoo and Wildlife Medicine Pub Date : 2024-06-01 DOI:10.1638/2023-0082

Sara E Childs-Sanford, Wendy K Kiso, Dennis L Schmitt

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引用次数: 0

Abstract

An understanding of species-specific vitamin D metabolism and its role in calcium homeostasis is essential for correct diet formulation and development of husbandry protocols for managed nondomestic species. This study documented serum vitamin D metabolites and other analytes involved in calcium homeostasis in Asian elephants (Elephas maximus) managed at a latitude similar to their wild natural habitat. Serum values for 33 elephants managed at a low latitude were measured in the peak of summer, revealing low vitamin D₂ (25(OH)D₂ 2.3 ± 0.6 ng/ ml and 24,25(OH)₂D₂ 2.17 ± 0.52 ng/ml) and nondetectable vitamin D₃. Serum minerals (calcium, phosphorus, magnesium), ionized calcium, and parathyroid hormone were within normal reported ranges. In comparison with previously reported values in elephants managed at a high latitude, 25(OH)D₂ (P < 0.001), 24,25(OH)₂D₂ (P = 0.001), and magnesium (P = 0.013) were significantly lower, and parathyroid hormone was significantly higher (P < 0.001). The lack of D₃ production during ample sun exposure at a low latitude suggests that Asian elephants are incapable of cutaneous photobiosynthesis of vitamin D, and that low serum D₂ is normal for this species.

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在低纬度地区管理的亚洲象（大象）的血清维生素 d 和选定的钙稳态生物标志物。

了解物种特有的维生素 D 代谢及其在钙稳态中的作用，对于正确配制非家养管理物种的日粮和制定饲养方案至关重要。本研究记录了在与其野生自然栖息地相似的纬度条件下饲养的亚洲象（Elephas maximus）的血清维生素 D 代谢物及其他与钙稳态有关的分析物。在夏季高峰期测量了 33 头在低纬度地区管理的大象的血清值，结果显示维生素 D2 偏低（25(OH)D2 为 2.3 ± 0.6 纳克/毫升，24,25(OH)2D2 为 2.17 ± 0.52 纳克/毫升），维生素 D3 检测不到。血清矿物质（钙、磷、镁）、离子钙和甲状旁腺激素均在正常范围内。与之前报道的在高纬度地区管理的大象的数值相比，25(OH)D2（P < 0.001）、24,25(OH)2D2（P = 0.001）和镁（P = 0.013）明显偏低，而甲状旁腺激素则明显偏高（P < 0.001）。在低纬度地区充足的阳光照射下，亚洲象体内缺乏维生素D3，这表明亚洲象无法通过皮肤光生物合成维生素D，血清中维生素D2含量低是正常现象。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Zoo and Wildlife Medicine 农林科学-兽医学

CiteScore

1.70

自引率

14.30%

发文量

审稿时长

9-24 weeks

期刊介绍： The Journal of Zoo and Wildlife Medicine (JZWM) is considered one of the major sources of information on the biology and veterinary aspects in the field. It stems from the founding premise of AAZV to share zoo animal medicine experiences. The Journal evolved from the long history of members producing case reports and the increased publication of free-ranging wildlife papers. The Journal accepts manuscripts of original research findings, case reports in the field of veterinary medicine dealing with captive and free-ranging wild animals, brief communications regarding clinical or research observations that may warrant publication. It also publishes and encourages submission of relevant editorials, reviews, special reports, clinical challenges, abstracts of selected articles and book reviews. The Journal is published quarterly, is peer reviewed, is indexed by the major abstracting services, and is international in scope and distribution. Areas of interest include clinical medicine, surgery, anatomy, radiology, physiology, reproduction, nutrition, parasitology, microbiology, immunology, pathology (including infectious diseases and clinical pathology), toxicology, pharmacology, and epidemiology.