Woods Leslie W, George Lisle W, Anderson Mark L, Woods Dale M, Filigenzi Mike S, Puschner Birgit
California Animal Health and Food Safety Laboratory System, University of California, Davis, CA, USA.
J Vet Diagn Invest. 2007 Sep;19(5):581-5. doi: 10.1177/104063870701900523.
Toxicosis of Adonis aestivalis is well documented in horses, but little is known of its toxicity in cattle. A. aestivalis (summer pheasant's eye) was collected over multiple years, under different growing conditions, and at various stages of maturity, dried, and administered to calves to evaluate the toxicity of A. aestivalis in cattle. Four 300-lb Holstein, and 2 90-lb, preruminating Jersey calves were administered 1% body weight of ground A. aestivalis via a stomach tube and monitored for clinical signs for 2 weeks and 1 week, respectively. The Holstein calves were then fed 0.2 to 1% body weight A. aestivalis daily for 4 to 5 weeks. The Holstein calves had transient, mild cardiac abnormalities during the feeding trial. Mild, transient gastrointestinal and cardiac signs were noted in the preruminating calves. No gross or microscopic lesions were seen on necropsies performed at the end of the study. Based on the results of this study, cattle do not appear to be as susceptible to toxicosis from A. aestivalis as other species, such as horses and pigs.
夏侧金盏花中毒在马匹中有充分记录，但对其在牛中的毒性了解甚少。多年来，在不同生长条件和不同成熟阶段采集夏侧金盏花（夏雉眼），干燥后给犊牛投喂，以评估夏侧金盏花对牛的毒性。四头300磅重的荷斯坦犊牛和两头90磅重的反刍前泽西犊牛，分别通过胃管投喂1%体重的磨碎夏侧金盏花，并分别监测2周和1周的临床症状。然后，给荷斯坦犊牛每天投喂0.2%至1%体重的夏侧金盏花，持续4至5周。在喂养试验期间，荷斯坦犊牛出现短暂、轻微的心脏异常。反刍前犊牛出现轻微、短暂的胃肠和心脏症状。在研究结束时进行的尸检中未发现肉眼可见或微观病变。根据本研究结果，牛似乎不像马和猪等其他物种那样容易受到夏侧金盏花中毒的影响。
