Surtos de infecção por Piscinoodinium pillulare e Henneguya spp. em pacus (Piaractus mesopotamicus) criados intensivamente no Sudoeste de Goiás
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Data
2012-02
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Resumo
Three outbreaks of infection by Piscinoodinium pillulare and Henneguya spp. in Piaractus
mesopotamicus intensively raised in Southwestern Goiás, Brazil, are described. Two outbreaks
occurred in the winter and another one in summer. Morbidity (58.57%-90%) and
mortality (100%) rates were determined. Stress episodes occurred previously in all cases.
Clinical signs included behavior changes and erratic movements with loss of equilibrium.
Main gross indings were swelling of the gills with white mucus exudate. Microscopically,
gills had mild to moderate multifocal necrotizing and lympho-plasmocytic in lammation
with hypertrophy and fusion of secondary lamellae. In addition, numerous intralesional
trophonts of P. pillulare and cysts of Henneguya spp. were noted. According to our knowledge,
this seems to be the irst description of Piscinoodinium pillulare e Henneguya spp.
infection in fishes reared in Southwestern Goiás, Brazil.
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Doenças de peixes, Piscicultura, Piscinoodinium pillulare, Henneguya spp., Fish diseases, Fish farm
Citação
SANT'ANA, Fabiano J. F. de; OLIVEIRA, Silvio L. de; RABELO, Rogério E.; VULCANI, Valcinir A. S.; SILVA, Samuel M. G. da; FERREIRA JÚNIOR, Jair A. Surtos de infecção por Piscinoodinium pillulare e Henneguya spp. em pacus (Piaractus mesopotamicus) criados intensivamente no Sudoeste de Goiás. Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 32, n. 2, p. 121-125, fev. 2012.