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Spontaneous outbreak of Astragalus pehuenches (Fabaceae) poisoning in cattle in Argentina

This is the first report of a spontaneous outbreak of Astragalus pehuenches poisoning on a farm in Argentine Patagonia, where 63 out of 70 cattle died. The main clinical signs of affected animals were ataxia, balance loss and progressive emaciation. Purkinje cells presented vacuolation and marginali...

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Main Authors: Martinez, Agustin, Lauroua, Catalina, Borrelli, Laura Beatriz, Gardner, Dale R., Robles, Carlos Alejandro
Format: Artículo
Language:Inglés
Published: Elsevier 2018
Subjects:
Fabaceae
Astragalus
Sanidad Animal
Envenenamiento
Ganado Bovino
Cattle
Animal Health
Poisoning
Región Patagónica
Astragalus pehuenches
Online Access:http://hdl.handle.net/20.500.12123/3993
https://www.sciencedirect.com/science/article/pii/S0041010118310249
https://doi.org/10.1016/j.toxicon.2018.11.303
Summary:This is the first report of a spontaneous outbreak of Astragalus pehuenches poisoning on a farm in Argentine Patagonia, where 63 out of 70 cattle died. The main clinical signs of affected animals were ataxia, balance loss and progressive emaciation. Purkinje cells presented vacuolation and marginalization of the nucleus. Astragalus pehuenches was detected in the paddock as well as in the ruminal content and fecal matter samples of the affected animals. Swainsonine concentrations in Astragalus specimens were found to be as high as 0.096%.

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