在俄勒冈州放牧羊羊的和其他必需和有毒元素的状态
Daniella Hasan1, Christopher J Russo2, Katherine R McLaughlin3
1Department of Animal and Rangeland Sciences, Oregon State University, Corvallis, OR 97331, USA.
Animals : an open access journal from MDPI
|June 26, 2025
概括
缺乏影响着俄勒冈州近三分之一的绵羊,影响着羊群健康和农场经济. 这项研究提供了关于绵羊矿物质状况的新数据和实际测试替代方案.
科学领域:
- 兽医医学 兽医医学 兽医医学
- 动物营养 动物营养
- 环境科学 环境科学
背景情况:
- 矿物质不平衡对绵羊种群构成重大健康和经济风险.
- 关于绵羊的微量矿物质和有毒元素状况的区域数据很少,特别是在俄勒冈州等缺地区.
研究的目的:
- 评估俄勒冈州绵羊中缺乏和潜在的有毒元素暴露的流行情况.
- 建立全州的全血矿物质度的参考数据.
- 评估替代血液采样和分析策略,以改善微量矿物质检测.
主要方法:
- 18个元素的全血度分析了来自56个俄勒冈州农场的370只临床正常的母羊.
- 应用了 <120 ng Se/mL 全血的缺乏门.
- 标准和无矿物质EDTA管之间进行了比较,以及矿物质分析的全血和血之间进行了比较.
主要成果:
- 28%的绵羊表现出缺乏,27%的农场平均低于缺陷值.
- 没有报告明显的缺乏或毒性的临床症状.
- 没有检测到过度接触有毒元素,如,或.
- 在血和全血之间观察到,和的强相关性 (r > 0.9),使转换方程成为可能.
结论:
- 俄勒冈州一大部分羊群面临缺乏症的风险.
- 目前的有毒元素暴露在受研究的人群中似乎很低.
- 血分析为关键微量矿物质提供了与全血相关的可行替代方案,支持实际的实地测试.
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