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Fatal Ichthyocotylurus erraticus infestation in Inca Terns (Larosterna inca) in a zoological collection
Pieters, W.; Hoyer, M.; Verstappen, F.; Wolters, M.; Ijzer, J.; de Jong, S.; Cremers, H.; Kik, M. (2014). Fatal Ichthyocotylurus erraticus infestation in Inca Terns (Larosterna inca) in a zoological collection. Avian Diseases 58(2): 333-336
In: Avian Diseases. ISSN 0005-2086, more
Peer reviewed article  

Available in  Authors 

Keywords
    Ichthyocotylurus erraticus (Rudolphi, 1809) Odening, 1969 [WoRMS]; Larosterna inca (Lesson, 1827) [WoRMS]; Osmerus eperlanus (Linnaeus, 1758) [WoRMS]
Author keywords
    Ichthyocotylurus erraticus; trematode; Inca tern; Larosterna inca;hemorrhagic enteritis; Osmerus eperlanus

Authors  Top 
  • Pieters, W.
  • Hoyer, M.
  • Verstappen, F.
  • Wolters, M.
  • Ijzer, J.
  • de Jong, S.
  • Cremers, H.
  • Kik, M.

Abstract
    In a breeding group of Inca terns (Larosterna inca), 14 birds died without antemortem signs of illness. Other than a poor body condition and a bloody cloaca, no symptoms were observed. Gross necropsy revealed severe segmental hemorrhagic enteritis with intralesional trematodes in most birds. Histopathologic examination revealed infiltration of lymphocytes, plasma cells, and granulocytes in the lamina propria of the duodenum and cross-sections of trematodes in the lumen. The parasites were identified as Ichthyocotylurus erraticus, a trematode of fish-eating birds. The cause of the infestation most likely was the feeding of unfrozen fresh fish. We describe the first case of a lethal I. erraticus infestation in Inca terns.

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