Sida carpinifolia (Malvaceae) poisoning in fallow deer (Dama dama)

A captive fallow deer (Dama dama) in a zoo was spontaneously poisoned after consumption of Sida carpinifolia. The paddock where cervids were kept was severely infested by S. carpinifolia. The deer developed a neurological syndrome characterized by muscular weakness, intention tremors, visual and sta...

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Bibliographic Details
Published inJournal of zoo and wildlife medicine Vol. 40; no. 3; p. 583
Main Authors Pedroso, Pedro M O, Von Hohendorf, Raquel, de Oliveira, Luiz G S, Schmitz, Milene, da Cruz, Cláudio E F, Driemeier, David
Format Journal Article
LanguageEnglish
Published United States 01.09.2009
Subjects
Animals
Animals, Zoo
Deer
Fatal Outcome
Female
Histocytochemistry - veterinary
Malvaceae - poisoning
Plant Poisoning - complications
Plant Poisoning - pathology
Plant Poisoning - veterinary
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Summary:A captive fallow deer (Dama dama) in a zoo was spontaneously poisoned after consumption of Sida carpinifolia. The paddock where cervids were kept was severely infested by S. carpinifolia. The deer developed a neurological syndrome characterized by muscular weakness, intention tremors, visual and standing-up deficits, falls, and abnormal behavior and posture. Because a severe mandibular fracture and the consequent deteriorating condition, it was euthanized. Main microscopic findings were swelling and multifocal cytoplasmic vacuolation in the Purkinje cells. The cytoplasm of multiple cells of the cerebellum, especially the Purkinje cells, stained with the lectins Concanavalia ensiformis, Triticum vulgaris, and succinylated Triticum vulgaris. Diagnostic possibilities such as bovine diarrhea virus, rabies, and transmissible spongiform encephalopathy were excluded. The report focuses on the risk of maintaining S. carpinifolia populations in zoo enclosures of wild herbivores.
ISSN:1042-7260
DOI:10.1638/2009-0029.1