Detection of <i>Aspergillus fumigatus</i> in the Captive Environment and Preventive Measures Leading to the Eradication of Penguin Aspergillosis in an Aquarium

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  • MATSUMOTO Naoya
    Noboribetsu Marine Park Nixe
  • ITOH Megumi
    Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine
  • YAMADA Kazutaka
    School of Veterinary Medicine, Azabu University
  • TOYOTOME Takahito
    Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine Diagnostic Center for Animal Health and Food Safety, Obihiro University of Agriculture and Veterinary Medicine Medical Mycology Research Center, Chiba University

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Other Title
  • 一水族館における飼育環境中の<i>Aspergillus fumigatus</i>検出および ペンギンのアスペルギルス症根絶を導いた予防対策
  • 水族館における飼育環境中のAspergillus fumigatus検出およびペンギンのアスペルギルス症根絶を導いた予防対策
  • スイゾクカン ニ オケル シイク カンキョウ チュウ ノ Aspergillus fumigatus ケンシュツ オヨビ ペンギン ノ アスペルギルスショウ コンゼツ オ ミチビイタ ヨボウ タイサク

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Abstract

<p>　 Aspergillosis is an important fungal disease in captive birds, but preventive measures, diagnostic methods, and therapies have not been established. Because Aspergillus fumigatus, the main causative agent of aspergillosis, is common in natural environments, it occasionally infects caged birds, often leading to their death. To establish measures for preventing A. fumigatus infection of captive king penguins （Aptenodytes patagonicus）, gentoo penguins （Pygoscelis papua）, and cape penguins （Spheniscus demersus） in the Noboribetsu Marine Park Nixe （Hokkaido, Japan）, the source of A. fumigatus in the aquarium environment was investigated. Air and soil sampling data implicated the soil as the major source of A. fumigatus. Therefore, measures were taken to minimize penguin contact with the soil. After taking preventive measures, aspergillosis has not been observed at the aquarium. Results of this study confirmed that estimating the source of contamination in a rearing environment in advance, taking measures against outdoor contaminants, and taking measures against indoor contaminants are all important for preventing A. fumigatus infection.</p>

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