Intoxicación por palqui (Cestrum Parqui L&amp;#39;herit) en camélidos domésticos mantenidos en el secano de la Zona Central de Chile

R., Verónica Mc Niven; G., Ulises Guajardo; S., Luis A. Raggi

doi:10.5354/0716-260x.1993.6115

Cited by 1 publication

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“…(Grüss and Priymenko 2009 ), South African Bornholm daisy ( Osteospermum ecklonis ) (Mc Kenzie et al 2009 ), Rumex spp. (Mitsui et al 2007 ) or Chilean hammerbush ( Cestrum parqui ) (McNiven R et al 1993 ). Less commonly, poisoning by cultivated species such as oats ( Avena sativa ) (Mc Kenzie et al 2009 ) or black oil sunflower seeds ( Helianthus annuus L. ) (McKenzie et al 2021 ) have been reported.…”

Section: Introductionmentioning

confidence: 99%

Rhododendron poisoning in alpacas (Vicugna pacos) in Northern Germany

Schregel,

Zdora,

Gerhauser

et al. 2024

Vet Res Commun

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Poisoning is often suspected to be the origin of disease in South American camelids (SACs) by owners, but only in a few cases this assumption can be confirmed. In small ruminants, rhododendron poisoning is a common emergency for livestock veterinarians. However, this condition has rarely been reported in SACs so far. This paper provides information regarding clinical findings, hematology, clinical chemistry, and treatment of four alpacas after presumed intake of rhododendron leaves including pathological findings of one of the animals. Rhododendron leaves contain grayanatoxins that lead to hyperpolarization of excitable cells. Clinical signs that were observed in the presented alpacas comprised: salivation, dehydration, decreased motility of compartment 1, uncoordinated regurgitation, and cardiac arrhythmia. Clinical chemistry revealed that rhododendron poisoning was associated with metabolic acidosis and azotaemia, hyponatremia and hyperkalemia. Most striking macroscopic and histopathological findings included gastric ulceration, and renal infarcts along with inflammatory changes. Leaves of Rhododendron spp. were identified in the forestomach content of this animal. Affected animals were treated symptomatically as there is no specific antidote in rhododendron poisoning. This included parenteral rehydration, treatment of metabolic acidosis (infusion of sodium bicarbonate solution), and oral administration of activated charcoal to bind potential toxins. In addition, antibiotic treatment might be necessary to prevent aspiration pneumonia in case of uncoordinated regurgitation. Of the four animals, the worst affected alpaca was euthanized, one had minimal signs and two responded to supportive care and recovered. In conclusion, rhododendron poisoning might be fatal for alpacas in individual cases and therefore rhododendron bushes should not be placed in the habitat of SACs.

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Section: Introductionmentioning

confidence: 99%