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| Martins,M.L.; Garcia,F.; Piazza,R.S.; Ghiraldelli,L.. |
| The present study describes Camallanus maculatus n. sp. (Nematoda: Camallanidae) from Xiphophorus maculatus (Osteichthyes: Poecilidae) collected in an ornamental fish farm in São Paulo State, Brazil. Thirty-three out of 40 examined fish were parasitized (82% prevalence) with mean intensity of 2.8 (1-20). Male specimens were 3,500µm total length and females 7,100µm total length, provided with orange-brown buccal capsule and two developed tridents. Males showed two unequal spicules, gubernaculum absent and females with vulva situated in the middle of the body. The main characteristics were the sleekly longitudinal ridges in the buccal capsule in both sexes, enlargement at the anterior end of the smaller spicule, the number of genital papillae, longer... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fish; Xiphophorus maculatus; Nematode; Prevalence; Camallanus maculatus n. sp. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352007000500019 |
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| Vieira,F.N.; Buglione,C.C.; Mouriño,J.P.L.; Jatobá,A.; Martins,M.L.; Schleder,D.D.; Andreatta,E.R.; Barraco,M.A.; Vinatea,L.A.. |
| The effect of a Lactobacillus plantarum-supplemented diet on shrimp growth, digestive tract bacterial microbiota, survival, and some hemato-immunological parameters after an experimental challenge with Vibrio harveyi was studied. No difference (P>0.05) was observed in shrimp survival (80±6%) and final weight (6.63±0.56g) after 60 days feeding trial. Total bacteria count and Vibrio spp. count in the digestive tract were not diferent (P>0.05) until day 40, but they were lower (P<0.05) in the probiotic-supplemented group on day 60. Total lactic bacteria in the shrimp digestive tract was higher after day 20 in the probiotic-supplemented group. Ten hours after V. harveyi challenge, survival of the probiotic-supplemented group (65.7±2.9%) was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Litopenaeus vannamei; Lactobacillus plantarum; Intestinal microbiota; Immunostimulation. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352010000300019 |
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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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| 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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| Santos,R.S.; Roumbedakis,K.; Marengoni,N.G.; Takahashi,H.K.; Pimenta,F.D.A.; Melo,C.M.R.; Martins,M.L.. |
| The occurrence of proteocephalid cestodes in tucunaré Cichla sp., captured monthly, between August 2000 and August 2001, in Paraná River, Presidente Epitácio, SP, was evaluated. From 128 specimens, 71 (55.6%) were parasitized by Proteocephalus macrophallus (Diesing, 1850) and/or P. microscopicus (Woodland, 1935). Total mean abundance and intensity were 157.08 and 223.41, respectively. The highest prevalence (90%) mean abundance (1,122.4) and intensity indexes (1,247.11) occurred in February 2001, while in September 2000 there were no observed animals infected by cestodes. No relationship between the sex of the host and parasitological indexes was found. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fish; Tucunare; Parasitism; Proteocephalidae; Paraná River. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352011000300008 |
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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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