来自斯堪的纳维亚中部的四种自由活动的哺乳动物的全血度
Marianne Lian1,2, Lucile Morcelet3, Ilona Marmouget-Joyau3
1Department of Veterinary Medicine, University of Alaska Fairbanks, 2141 Koyukuk Drive, Fairbanks, AK, 99775, USA. mlian@alaska.edu.
Acta veterinaria Scandinavica
|November 27, 2025
概括
(Se) 对哺乳动物至关重要,但存在缺乏和毒性风险. 这项研究测量了斯堪的纳维亚野生动物中总的Se,发现水平因物种,年龄和地区而异,有些物种表现出缺乏,而另一些物种表现出高水平.
科学领域:
- 环境科学 环境科学
- 野生动物生物学 野生动物生物学
- 毒理学 毒理学 毒理学
背景情况:
- (Se) 是哺乳动物的重要微量元素,对抗氧化剂,免疫功能和新陈代谢至关重要.
- 北欧面临缺乏,影响畜牧业,需要补充土壤.
- 关于斯堪的纳维亚野生动物的总Se度 ([TSe]) 的研究有限.
研究的目的:
- 在挪威和瑞典的鹿,棕熊,狼和狼的全血中测量总Se度 (TSe).
- 评估这些野生动物物种的Se状态,相对于已建立的参考范围.
- 探索影响Se水平的因素,如热带水平,年龄,体重,地区和季节.
主要方法:
- 采集了来自鹿 (Alces alces),棕熊 (Ursus arctos),狼 (Canis lupus) 和狼人 (Gulo gulo) 的整体血液样本.
- 在收集的血液样本中测量了总度 ([TSe]).
- 进行了统计分析,将[TSe]与物种,热量水平,年龄,体重,地区和季节相关联.
主要成果:
- [TSe]随着食量水平的增加:鹿 <熊 <狼 <狼人.
- 与国内物种相比,超过一半的鹿和5%的熊表现出Se缺乏.
- 许多熊 (49%),狼 (42%) 和狼 (29%) 的[TSe]值高于家养物种推范围.
- [TSe]通常随着年龄和体重的增加而增加,观察到区域,季节和年度变化.
结论:
- 进一步的研究应该扩大空间分布,并包括更多的狼人来研究高[TSe]水平.
- 从缺乏地区的野生动物中测量Se对于生态毒理学至关重要,因为Se缺乏可以加剧重金属毒性.
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