Journal
NEW ZEALAND VETERINARY JOURNAL
Volume 55, Issue 3, Pages 149-151Publisher
NEW ZEALAND VETERINARY ASSOC INC
DOI: 10.1080/00480169.2007.36759
Keywords
chocolate toxicity; caffeine; theobromine; theophylline; parrot; innovation; kea
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CASE HISTORY: An adult male kea (Nestor notabilis) in good body condition was found dead at Aoraki/Mt Cook Village, in the Southern Alps of New Zealand. The bird had previously been involved in behavioural tests of problem-solving ability. CLINICAL AND PATHOLOGICAL FINDINGS: The bird had substantial subcutaneous and abdominal reserves of fat. The crop contained 20 g of what appeared to be dark chocolate; a conservative estimate of the dose of methylxanthines ingested by the bird was 250 mg/kg theobromine, 20 mg/kg caffeine and 3 mg/kg theophylline. Histopathological examination revealed acute degenerative changes to hepatocytes, renal tubules, and cerebrocortical neurons. DIAGNOSIS: Acute combination methylxanthine toxicity after opportunistic ingestion of chocolate. CLINICAL RELEVANCE: This is the first report of the pathological findings of methylxanthine toxicity in a wild parrot, and illustrates the need to ensure that kea are protected from the toxic by-products of human habitation, and the difficulties in ensuring this against a neophilic, inquisitive and innovative parrot.
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