Micheloud Juan F, Colque Caro Luis A, Cholich Luciana A, Martínez Olga G, Gimeno Eduardo J
Grupo de Trabajo de Patología, Epidemiología e Investigación Diagnóstica, Área de Sanidad Animal-IIACS/INTA, Salta, Argentina; Facultad de Ciencias Veterinarias y Agrarias-UCASAL, Salta, Argentina.
Grupo de Trabajo de Patología, Epidemiología e Investigación Diagnóstica, Área de Sanidad Animal-IIACS/INTA, Salta, Argentina.
Toxicon. 2019 Jan;157:80-83. doi: 10.1016/j.toxicon.2018.11.302. Epub 2018 Nov 20.
The aim of this paper was to present the first report of Prosopis nigra poisoning of cattle in Argentina. Outbreaks occurred in five farms located in Salta and Santiago del Estero provinces. All animals were examined, euthanized and necropsied. Clinical signs included tongue protrusion, twitches and tremors of muscles of mastication, weight loss and lethargy. Severe atrophy of the masseter, buccinator and lingual muscles was observed, along with neuronal vacuolation in the nuclei of the trigeminal, facial, and hypoglossus nerves. These findings and the clinical signs are consistent with results obtained in animals, spontaneously and experimentally intoxicated with Prosopis juliflora in previous studies. Several species of this genus are native to Argentina. Farmers should be warned about the suspected toxicity by Prosopis nigra, since this species has wide geographical distribution in the country.
本文的目的是呈现阿根廷首例牛黑荚豆中毒的报告。疫情发生在位于萨尔塔省和圣地亚哥-德尔埃斯特罗省的五个农场。对所有动物进行了检查、安乐死并进行了尸检。临床症状包括伸舌、咀嚼肌抽搐和震颤、体重减轻和嗜睡。观察到咬肌、颊肌和舌肌严重萎缩，同时三叉神经、面神经和舌下神经核出现神经元空泡化。这些发现和临床症状与先前研究中自然和实验性摄入朱缨花属植物中毒的动物所获得的结果一致。该属的几个物种原产于阿根廷。应警告农民注意黑荚豆的疑似毒性，因为该物种在该国具有广泛的地理分布。
