牛中慢性与肺部肺部相关的慢性
Laís G Caymmi1, Múcio F F Mendonça2, Paula V Leal2
1Graduate Program in Animal Science in the Tropics, School of Veterinary Medicine and Animal Science, Federal University of Bahia (UFBA), Salvador 40170-110, BA, Brazil.
巴西巴伊亚州的一种慢性牛病,由于肺高血压,导致严重的胀和心力衰竭. 调查表明,有毒植物是这种经济重要状况的可能原因.
科学领域:
- 兽医病理学 兽医病理学
- 动物中的心血管疾病.
- 毒理学 毒理学 毒理学
背景情况:
- 一种慢性,衰弱的牛病,以皮下水为特征,在巴西巴伊亚州持续了30年.
- 这种疾病的病因和发病因仍未知,影响了牛的健康和生产力.
研究的目的:
- 调查巴伊亚州一种慢性牛病的病因,流行病学,临床症状和病理学.
- 为了确定严重和右心力衰竭在受影响的牛的根本原因.
主要方法:
- 从2023年10月到2025年4月,对15起疾病爆发的现场调查.
- 临床和病理检查受影响的牛,包括动脉组织的组织病理学.
- 流行病学数据和牧场检查的分析.
主要成果:
- 这种疾病表现为慢性皮下,水上心脏,胸水,,以及右心室扩张.
- 组织病理学揭示了显著的动脉壁缩和增生,表明肺动脉高血压.
- 与对照动物相比,受影响的牛的肺动脉和心脏动脉显著变厚.
结论:
- 这种疾病的特征是慢性心脏肺部 (右心力衰竭) 二次性肺动脉高血压.
- 流行病学发现和牧场评估强烈表明有毒植物病因.
- 需要进一步的研究,以确定负责这种牛病的特定有毒植物.
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