Abstract：
Taxus is a genus of coniferous shrubs and trees, commonly known as the yews, in the family Taxaceae. All species of yew contain taxine alkaloids, which are ascribed as the toxic principles. Anecdotally, free ranging ruminants such as antelope, deer, elk, and moose have been regarded as tolerant to yew. Herein several cases of intoxication of deer, elk, and moose by yew from the state of Utah in the winter of 2022-2023 are documented. Ingestion of yew was documented by three means among the poisoned cervids; plant fragments consistent with yew were visually observed in the rumen contents, chemical analysis, and subsequent detection of the taxines from rumen and liver contents, and identification of exact sequence variants identified as Taxus species from DNA metabarcoding. Undoubtedly, the record snowfall in Utah during the winter of 2022-2023 contributed to these poisonings.
摘要：
紫杉属针叶灌木和乔木属,通常被称为酵母，在红豆杉科。紫杉的所有物种都含有紫杉碱生物碱，这被认为是有毒的原则。有趣的是，自由放养的反刍动物，如羚羊，鹿,麋鹿,驼鹿被认为对紫杉宽容。这里有几例鹿中毒的案例，麋鹿,和驼鹿在2022-2023年冬季来自犹他州的红豆杉被记录在案。在中毒的子宫颈中通过三种方式记录了红豆杉的摄入；在瘤胃内容物中目视观察到与红豆杉一致的植物碎片，化学分析和随后从瘤胃和肝脏内容物中检测紫杉素，并从DNA元编码中鉴定出鉴定为紫杉属物种的操作分类单位。毫无疑问,2022-2023年冬季犹他州创纪录的降雪导致了这些中毒。
