Protozoan and metazoan parasites of Nile tilapia Oreochromis niloticus cultured in Brazil
| Autor: | Renata Marinho Gb, D. Montagner, Marcos Tavares-Dias, Márcia Dias Rd, Wanderson Pantoja Mf, Ligia Neves R |
|---|---|
| Přispěvatelé: | WANDERSON MICHEL FARIAS PANTOJA, Estagiário CPAF-AP, RENATA DAS GRAÇAS BARBOSA MARINHO, Unifap, DANIEL MONTAGNER, CPAF-AP, MARCOS TAVARES DIAS, CPAF-AP., MÁRCIA KELLY REIS DIAS, Unifap, LIGIA NEVES, Estagiária CPAF-AP |
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Gill
Trichodina Parasito animal Fish farming prevalence Zoology Aquatic Science Freshwater fishes parasites Digenea Freshwater fishe Nile tilapia Animal parasite lcsh:Veterinary medicine General Veterinary biology Ichthyophthirius multifiliis Peixe de água doce Oreochromis niloticus biology.organism_classification Dactylogyridae Fishery Oreochromis lcsh:SF600-1100 Animal Science and Zoology |
| Zdroj: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA-Alice) Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA Journal MVZ Cordoba; Revista MVZ Córdoba Volumen 17(1) Enero-Abril 2012; 2812-2819 Revista MVZ Córdoba; Revista MVZ Córdoba Volumen 17(1) Enero-Abril 2012; 2812-2819 Journal MVZ Cordoba; Vol 17 No 1 (2012): Revista MVZ Córdoba Volumen 17(1) Enero-Abril 2012; 2812-2819 Revista MVZ Córdoba; Vol. 17 Núm. 1 (2012): Revista MVZ Córdoba Volumen 17(1) Enero-Abril 2012; 2812-2819 Revista MVZ Cordoba, Vol 17, Iss 1 (2012) Revista MVZ Cordoba, Vol 17, Iss 1, Pp 2812-2819 (2012) |
| ISSN: | 1909-0544 0122-0268 |
| Popis: | Objective. This study describes the parasitic fauna and relative condition factor (Kn) in Nile tilapia Oreochromis niloticus L. (Cichlidae) from fish farms in the State of Amapá. Material and methods. 123 fish from four fish farms in the state of Amapá, Brazil were necropsied for parasitological and Kn analysis. Results. 64.2% of the examined fish, had the gills infected with Cichlidogyrus tilapiae Paperna, 1960 (Monogenoidea: Dactylogyridae); Ichthyophthirius multifiliis Fouquet, 1876 (Protozoa: Ciliophora), Trichodina Ehrenberg, 1830 and Paratrichodina africana Kazubski & El-Tantawy, 1986 (Protozoa: Trichodinidae). The highest prevalence found corresponded to Monogenoidea C. tilapiae while the lowest corresponded to Trichodinidae. However, I. multifiliis was the parasite that presented the greatest intensity and abundance. The differences found in the infection rates of the different fish farms due to causes further discussed. The parasitism did not influence the relative condition factor (Kn) of fish. This was the first record of P. africana in Brazil and occurred in the Eastern Amazon. Conclusions. In Brazil, Lamproglena sp. is an emerging parasite in the Southern and Southeastern regions, but this crustacean was not found in the Nile tilapia in the State of Amapá. The parasitic infections in Nile tilapia farmed in Brazil are caused by protozoan, monogenoidea, crustacea and digenea species, and the regional differences on their prevalence and intensity rates are discussed in this study. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|