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Experimental infection of budgerigars (Melopsittacus undulatus) with a low virulent K21 strain ofToxoplasma gondii

Authors
Journal
Veterinary Parasitology
0304-4017
Publisher
Elsevier
Publication Date
Volume
116
Issue
4
Identifiers
DOI: 10.1016/j.vetpar.2003.07.008
Keywords
  • Toxoplasma Gondii
  • Budgerigar
  • Oocyst
  • Psittaciformes
  • Antibodies
  • Latex-Agglutination Test
Disciplines
  • Medicine

Abstract

Abstract In total 53 budgerigars ( Melopsittacus undulatus) were divided into six groups and orally infected with a suspension of oocysts of low virulent Toxoplasma gondii K21 strain in the doses of 10 2, 10 3, 10 4, 10 5 and 10 6, respectively. Blood was collected from the birds prior to the inoculation and then on days 10, 20 and 30 post infection. Latex-agglutination test (LAT) was used for the detection of antibodies in the inoculated birds. The infected birds showed no apparent signs of disease. The antibodies were found in all but two birds inoculated a dose of 10 2 oocysts. Haematological values remained unchanged after infection. T. gondii was isolated by bioassay in mice from all 37 birds fed 10 3 or more oocysts and 6 of 9 fed 10 2 oocysts. The results demonstrate that budgerigars are resistant to T. gondii infection.

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