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First report of Trichodinella and new geographical records of trichodinids in Nile tilapia (Oreochromis niloticus) farmed in Brazil.
- Source :
-
Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria [Rev Bras Parasitol Vet] 2019 Jun 27; Vol. 28 (2), pp. 229-237. Date of Electronic Publication: 2019 Jun 27. - Publication Year :
- 2019
-
Abstract
- Massive occurrence of trichodinids is frequently accompanied by serious disease in fish farms. In this study, trichodinid species from the gills and skin of Nile tilapia (Oreochromis niloticus) farmed in the central-western region of Brazil (state of Goiás) were morphologically characterized. Dried slides were prepared from the parasites and were impregnated with silver nitrate (2%). Morphometric characteristics were determined and schematic drawings of the denticles were made using photomicrographs produced from the slides. Seven species of trichodinid ectoparasites (Protozoa: Ciliophora: Trichodinidae) were found parasitizing the gills: four of the genus Trichodina Ehrenberg, 1838; one of Tripartiella Lom, 1959; one of Paratrichodina Lom, 1963; and one of Trichodinella Ṧrámek-Huṧek, 1953. On the body surface, three specimens of the genus Trichodina were identified. This study presents new geographical records of trichodinids in Brazil, thus confirming that Trichodina centrostrigeata, Trichodina compacta, Trichodina heterodentata, Paratrichodina africana and Tripartiella orthodens are widely distributed worldwide. Additionally, the first record of the genus Trichodinella in Brazil is presented.
- Subjects :
- Animals
Aquaculture
Brazil
Ciliophora classification
Ciliophora Infections parasitology
Fisheries
Oligohymenophorea classification
Cichlids parasitology
Ciliophora isolation & purification
Ciliophora Infections veterinary
Fish Diseases parasitology
Oligohymenophorea isolation & purification
Subjects
Details
- Language :
- English
- ISSN :
- 1984-2961
- Volume :
- 28
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria
- Publication Type :
- Academic Journal
- Accession number :
- 31271640
- Full Text :
- https://doi.org/10.1590/S1984-29612019038