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| Marinho,R.G.B.; Tavares-Dias,M.; Dias-Grigório,M.K.R.; Neves,L.R.; Yoshioka,E.T.O.; Boijink,C.L.; Takemoto,R.M.. |
| The parasitofauna in the giant Amazon basin, pirarucu (Arapaima gigas Schinz, 1822) cultured in fish farms from the state of Amapá, in eastern Amazonia (Brazil) was investigated. Of the 100 examined fish, 90.0% were parasitized by Ichthyophthirius multifiliis (Ciliophora), Dawestrema cycloancistrium, Dawestrema cycloancistrioides (Monogenoidea) and Polyacanthorhynchus macrorhynchus (Acanthocephala), which had an aggregated distribution pattern. The highest infection rates were caused by I. multifiliis and the lowest by P. macrorhynchus. Infection rates were different for each fish farm, due to different water quality and management characteristics. A negative correlation was found between the intensity of monogenoideans D. cycloancistrium and D.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazonia; Fish farm; Freshwater fish; Parasites; Sanity. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352013000400035 |
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| Antonucci,A.M.; Catroxo,M.H.; Hipolito,M.; Takemoto,R.M.; Melo,N.A.; França,F.M.; Teixeira,P.C.; Ferreira,C.M.. |
| Feces are an important viral agent elimination route for infected carrier animals and in aquatic organisms these pathogenic agents can very rapidly propagate due to the habitation environment. The objective of this work is to track viral particles in the intestinal contents of bullfrogs (Lithobates catesbeianus) from five commercial frog farms in the region of Vale do Paraíba, in the State of São Paulo, Brazil, using negative contrast transmission electron microscopy (TEM). The Coronaviridae, Paramyxoviridae, Parvoviridae and Herpesviridae families were observed and photographed in specimens. This work emphasizes the importance of adopting sanitary measures in commercial farms and confirms that observing feces by TEM is an efficient and rapid diagnostic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amphibians; Herpesvirus; Coronavirus; Paramixovirus; Parvovirus. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000200001 |
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