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| Meneses,J.O.; Couto,M.V.S. do; Sousa,N.C.; Cunha,F. dos S.; Abe,H.A.; Ramos,F.M.; Chagas,E.C.; Chaves,F.C.M.; Martins,M.L.; Maria,A.N.; Carneiro,P.C F.; Fujimoto,R.Y.. |
| ABSTRACT The phythotherapy is an alternative to use of chemotherapeutical agents against monogenean infection. This study evaluated the anthelmintic activity of essential oil Ocimum gratissimum against monogenean Cichlidogyrus tilapiae as well as its acute toxicity in tilapia juveniles. The mean lethal concentration (LC50) and different concentrations of the essential oil, both in vitro and in vivo assays (short and long-term baths) were assessed. The LC50 was 40.70mg.L-1 and in the in vitro assay this concentration showed 80% efficacy at the last two hours and in the in vivo assay 65.87% efficacy in long-term bath. However, it provoked morphological alterations on the gills such as hyperplasia and edema. The parasites exposure at the highest concentration... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Disease; Freshwater fish; Helminth; Natural product; Treatment. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000200497 |
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| Martins,M.L.; Ghiraldelli,L.; Garcia,F.; Onaka,E.M.; Fujimoto,R.Y.. |
| This trial registered the experimental infection viability with nematode larvae Camallanus sp. in Notodiaptomus sp., a crustacean, which can be an intermediate host. Adult females of nematode were dissected from the intestines of Xiphophorus maculatus (Osteichthyes: Poeciliidae), at a fish farm in the State of São Paulo. Females were slightly compressed for larvae release, collected with Pasteur pipette and separated on Petri dishes with 9ml filtered water at 28.1ºC, from zooplankton culture. Treatments consisted of Petri dishes with 60 and 105 copepods, in which 120, 150 and 210 larvae of nematode were added in four replications. Twenty-four and 36h after exposition to the larvae, the copepods were fixed in 70% alcohol to record the amount of fixed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Experimental infection; Nematoda; Camallanus; Crustacea; Notodiaptomus. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352007000200018 |
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| Fujimoto,R.Y.; Hide,D.M.V.; Paixão,P.E.G.; Abe,H.A.; Dias,J.A.R.; Sousa,N.C.; Couto,M.V.S.; Silva,R.V.B.; Madi,R.R.; Benavides,M.V.; Ishikawa,M.M.; Chagas,E.C.; Boijink,C.L.; Dompieri,M.H.G.; Pereira,A.M.L.; Maciel,P.O.. |
| RESUMO Este trabalho teve como objetivo avaliar a fauna parasitária de tambaquis na região do Baixo São Francisco-AL/SE-Brasil e correlacionar os índices de prevalência e intensidade média com fatores bióticos e abióticos. Foram coletados 252 espécimes para análise parasitológica de 10 pisciculturas. Os parasitos foram contabilizados, identificados, e determinaram-se os índices de prevalência e intensidade média, que foram correlacionados com fatores bióticos e abióticos. Dos peixes coletados, 65,5% estavam parasitados por pelo menos um táxon. Foram encontrados 10 táxons: Monogeneas, Ichthyophthirius multifiliis, tricodinídeos, Piscinoodinium pillulare, Ichthyobodo sp., Dolops carvalhoi, Lernaea cyprinacea, Procamallanus (Spirocamallanus) inopinatus,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aquicultura; Colossoma macropomum; Manejo; Parasitos; Sanidade. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000200563 |
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| Martins,M.L.; Tavares-Dias,M.; Fujimoto,R.Y.; Onaka,E.M.; Nomura,D.T.. |
| The effect of Goezia leporini Martins & Yoshitoshi, 2003 (Nematoda: Anisakidae) infection on the haematological characteristics of cultivated Leporinus macrocephalus (Osteichthyes:Anostomidae) was studied. Paleness of gills, kidneys, liver and heart, black spots on the kidney and accumulation of fluid in the visceral cavity, stomach and intestines were observed. Gall bladder content had pale and translucent aspect. Strong and slight positive correlations between number of nematodes and fish weight were estimated within the 0-100g and 100-200g fish weight group, respectively. Blood smears from infected fish showed variation in erythrocyte size (anisocytosis) and shape (poikilocytosis), and also dividing erythrocytes. No significant alteration... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brazilian fish; Piauçu; Leporinus macrocephalus; Nematoda; Goezia leporini; Haematology. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352004000500011 |
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| Garcia,F.; Fujimoto,R.Y.; Martins,M.L.; Moraes,F.R.. |
| This work investigated the relationship between water characteristics and infestation of protozoan parasites, Icthyophthirius multifiliis and Trichodina sp., in swordtails (Xiphophorus helleri) and platy (Xiphophorus maculates) collected in an ornamental fish farm in São Paulo, Brazil. Fish were monthly collected from ponds and tanks for one year. The prevalence rates in fish from tanks and ponds were, respectively, 34.2% and 22.5% for I. multifiliis, and 13% and 54.2% for Trichodina sp. Increased electric conductivity and pH provoked reduction of I. multifiliis infestation. Low oxygen concentration increased Trichodina sp. infestation. The use of salt to increase the electric conductivity of water was a method to control I. multifiliis. Low dissolved... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Swordtails; Platy; Parasite; Protozoan; Trichodina sp.; Icthyophthirius multifiliis. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352009000100022 |
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| Neves,M.S.; Couto,M.V.S.; Sousa,N.C.; Santos,R.F.B.; Dias,H.M.; Abe,H.A.; Dias,J.A.R.; Cunha,F.S.; Dias,M. Tavares; Fujimoto,R.Y.. |
| RESUMO O objetivo deste trabalho foi avaliar as respostas hematológicas do acari-bola Peckoltia oligospila submetido ao estresse de transporte. Variações nos parâmetros de sangue foram analisadas às zero, seis, 24, 48, 72 e 96 horas após o transporte. Respostas ao estresse foram observadas entre zero e seis horas do transporte, mas a maioria dos parâmetros retornou aos valores basais em 24 horas. O tempo de zero hora (momento imediato após transporte) foi o mais crítico, com valores elevados de glicemia, eritrócitos e eritroblastos. Respostas secundárias tardias foram observadas para a proteína plasmática total, o volume corpuscular médio (VCM) e a hemoglobina corpuscular média (HCM) em seis horas após o transporte dos peixes, retornando aos valores basais... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Peixe endêmico; Fisiologia; Sangue; Sanidade. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000100013 |
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