巴西东南部一群绵羊中因马氏帕利草（茜草科）导致的自发性中毒。
Spontaneous poisoning by Palicourea marcgravii (Rubiaceae) in a sheep herd in southeastern Brazil.
作者信息
Koether Karoline, Lee Stephen T, Belluci Renata S, Garcia Rodrigo, Pfister James A, Cunha Paulo Henrique J, Rocha Noeme S, Borges Alexandre S, Oliveira-Filho Jose P
机构信息
São Paulo State University (Unesp), School of Veterinary Medicine and Animal Science, Botucatu, SP, 18607400, Brazil.
Poisonous Plant Research Laboratory, Agricultural Research Service, United States Department of Agriculture, 1150 E. 1400 N., Logan, UT, 84341, USA.
出版信息
Toxicon. 2019 Apr 1;161:1-3. doi: 10.1016/j.toxicon.2019.02.015. Epub 2019 Feb 28.
Palicourea marcgravii (Rubiaceae) is considered the most important toxic plant affecting livestock farming in Brazil. This study describes an outbreak of spontaneous poisoning by P. marcgravii in sheep. Forty-nine sheep died while showing clinical signs of sudden death after having access to the plant. During the necropsy, P. marcgravii leaves were observed in the rumens of the animals. Histopathological analysis demonstrated hydropic degeneration of the kidneys. Monofluoracetate concentration obtained in Palicourea samples was 0.53% (5.3 μg/mg). These findings collectively indicate that the affected animals died from poisoning due to P. marcgravii.
九里香茜草（茜草科）被认为是巴西影响畜牧业的最重要有毒植物。本研究描述了一起绵羊因九里香茜草自发中毒的事件。49只绵羊在接触该植物后出现突然死亡的临床症状并死亡。尸检时，在动物瘤胃中发现了九里香茜草的叶子。组织病理学分析显示肾脏出现水样变性。九里香茜草样本中测得的一氟乙酸浓度为0.53%（5.3μg/mg）。这些发现共同表明，受影响的动物死于九里香茜草中毒。
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