A5013859310- Toxoplasma gondii Research Studies
- Parasitic Infections and Diagnostics
- Helminth infection and control
- Herpesvirus Infections and Treatments
- Coccidia and coccidiosis research
- Ruminant Nutrition and Digestive Physiology
- Parasite Biology and Host Interactions
- Animal Disease Management and Epidemiology
- Bird parasitology and diseases
- Vector-borne infectious diseases
- T-cell and Retrovirus Studies
- Soil Management and Crop Yield
- Animal Nutrition and Physiology
- Viral Infections and Vectors
- Sex work and related issues
- Vector-Borne Animal Diseases
- Aquaculture disease management and microbiota
- Geography and Environmental Studies
- Environmental and biological studies
- Polyamine Metabolism and Applications
- Chronic Kidney Disease and Diabetes
- Folate and B Vitamins Research
- Viral gastroenteritis research and epidemiology
- Growth and nutrition in plants
- Rabies epidemiology and control
Universidade Norte do Paraná
2020-2024
Universidade Estadual de Londrina
2012-2023
Universidade Estadual de Maringá
2008-2023
The aim of the present study was to evaluate re-shedding T. gondii oocysts in cats fed tissue cysts homologous and heterologous strains 12, 24 36 months after first infection. Thirteen were used divided into four groups: G1 (n=2), G2 (n=3), G3 (n=5), G4 (n=3). G1, infected with brain ME49 TgDoveBr8, both genotype II gondii. re-infected twelve VEG strain (genotype III), TgDoveBr1 II). a third time from second infection, initial infection strain. cats' feces evaluated using fecal flotation...
Eared doves (Zenaida auriculata), which are common in urban, rural and wild areas many regions of Brazil, frequently prey for domestic cats. Therefore Toxoplasma gondii isolates obtained from may reflect greater environmental diversity than those other hosts. The aim the present study was to evaluate T. seroprevalence, isolate genotype strains Z. auriculata. Serum tissue samples were collected 206 use modified agglutination test (MAT) mouse bioassay. prevalence antibodies 22.3% (46/206),...
The current study aimed to evaluate serology, and isolate genotype Toxoplasma gondii strains from pregnant dairy cows, slaughtered in an abattoir for human consumption, their fetuses. Blood 60 cows blood tissue samples (brain, lung, heart, liver) fetuses were collected analyzed a mouse bioassay. Antibodies against T. observed 48.3% of 3.7% (IFAT, titers ≥ 50 25 considered positive). Fourteen (23.3%) six (10.0%) identified as positive the was isolated sample cow older than 4 years old 6th...
Abstract The present study aimed to perform an epidemiological and morphological identification of Eimeria infection in sheep Brazil. Fecal samples from were collected 20 farms northern Paraná, An questionnaire was used evaluate the risk factors. containing oocysts per gram feces (OoPG) ≥1000 subjected modified Willis-Mollay method oocyst identification. Sporulated observed microscopically for A total 807 fecal collected. Based on characteristics sporulated oocysts, 10 species identified,...
Abstract Bovine coccidiosis is a disease of major importance in cattle herds across the world. The disorder mainly affects young calves, and E. bovis zuernii are considered most pathogenic species genus, however, alabamensis have been described grazing calves. In this study, prevalence Eimeria spp. was evaluated calves on dairy farms northern region state Paraná, Brazil. Four hundred 44 were tested for presence coccidian oocysts. positives re-examined oocysts morphometrically analyzed...
The parasite Haemonchus contortus is one of the most pathogenic for small ruminants in tropical and subtropical regions worldwide, including Brazil. objective this study was to evaluate structural changes induced adult H. after vitro contact with Acacia mearnsii extract (AE), using scanning electron microscopy. Adult nematodes were collected from a naturally infected lamb. In assay parasites placed AE (100 mg ml-1), two hours at 37oC. used assays (exposed negative controls) analyzed an...
Neospora caninum is a worldwide parasite recognized as one of the main parasites responsible for abortion in cattle. The objective this study was to evaluate vertical transmission N. dairy cows (Bos taurus) that were slaughtered at an abattoir state Santa Catarina, southern Brazil. Blood samples (with and without EDTA) from 60 pregnant blood tissue (brain, lung, heart liver) their fetuses collected used PCR serological evaluation. non-pregnant detect antibodies. Anti-N. antibodies detected...
Neospora caninum é um parasita que causa perdas consideráveis na pecuária bovina. Compreender os seus mecanismos de infecção essencial para compreender o seu impacto nos rebanhos. O fracionamento celular e a caracterização das frações poderão contribuir seleção proteínas organelas com características imunogênicas. Assim, presente estudo teve como objetivo isolar roptrias subcelulares N. utilizando gradiente sacarose caracterizar sua imunogenicidade em camundongos. Taquizoítos da cepa Nc-1...
O parasitismo gastrintestinal em ovinos acarreta inúmeros prejuízos aos produtores rurais. controle é realizado basicamente através da administração de anti-helmínticos sintéticos o que estimula a seleção parasitas resistentes. uso plantas ricas taninos condensados (TC) apresenta-se como uma alternativa promissora no helmintos ovinos, reduzindo produtos químicos. Esse estudo avaliou efeito in vitro dos TC provenientes acácia (Acacia mearnsii) sobre eclosão ovos e motilidade larvas terceiro...
Toxoplasma gondii is a worldwide parasite recognized as one of the main zoonosis in human beings. The present study aimed to evaluate serology T. from dairy cows slaughtered an abattoir for consume. Serum samples 120 (60 pregnant and 60 non-pregnant) were collected, indirect fluorescent antibody test (IFAT) was performed detect anti-T. antibodies by considering positive animals with titers ≥50. Serologic results showed 29.1% (35/120), which 29 (48.3%) e 6 (10,0%) non-pregnant cows,...
O agente de maior importância, em relação à anaplasmose bovina, é o Anaplasma marginale. Os principais sinais clínicos dessa enfermidade são anemia hemolítica, icterícia, dispneia, taquicardia, febre, fadiga, lacrimejamento, sialorreia, micção frequente, anorexia, perda peso, aborto e morte. A terapia antimicrobiana principal protocolo terapêutico. objetivo do presente trabalho foi avaliar a eficácia dipropionato imidocarb, da enrofloxacina cloridrato oxitetraciclina no tratamento bovinos...
Toxoplasma gondii é um protozoário reconhecido como dos mais importantes parasitas em saúde pública. O objetivo do presente estudo foi avaliar a ocorrência de anticorpos contra T. vacas corte zebuínas (Bos indicus) gestantes, e seus fetos, bem como, não gestantes abatidas matadouro no norte Paraná. No foram avaliadas 169 vacas, 92 prenhas (em diferentes fases gestação) 77 prenhas. A realizada por meio da reação imunofluorescência indireta (IFI) considerando animais positivos aqueles com...
Abstract Cryptosporidium is a protozoan parasite with wide range of hosts, including humans. However, only few species have been described in birds (C. meleagridis, C. baileyi, galli and avium). The aim this study was to investigate the occurrence spp. feces eared doves (Zenaida auriculata), followed by molecular characterization parasite. A total 196 animals both sexes were trap-captured; culled intestinal contents collected for DNA extraction. After extraction, nested-PCR (nPCR), which...
O objetivo deste trabalho foi avaliar a degradabilidade ruminal da matéria seca e proteína bruta por meio técnica in situ dos capins Brachiaria brizantha Panicum maximum cortados aos 60 dias de idade, das silagens milho, sorgo milheto, fenos coast cross, guandu soja perene do farelo soja. Foram utilizados três novilhos com peso médio 300 kg, fistulados providos cânulas ruminais. Os volumosos foram incubados em ordem decrescente 72, 48, 24, 18, 12, 6, 3 0h, o incubado nos tempos 0h. resíduos...
The aim of the present study was to detect Eimeria spp. in eared doves (Zenaida auriculata) from Brazil. Two hundred and fourteen birds were trap-capture different regions Londrina city, Paraná state, Southern Fecal samples collected, DNA extraction performed. A nested PCR based on subunit I cytochrome c oxidase gene mitochondrial genome used presence this coccidian dove feces. From 214 birds, 171 (79.9%) positive for There significantly difference positivity between site capture. When...
This work provides insights of coagulant Moringa oleifera (MO) and aluminum sulfate (AS) on reduction Toxoplasma gondii oocysts viability Toxocara spp.eggs in water.Raw (RW) distilled water (DW) samples were added with 10 6 800 eggs L -1 , before coagulation/ flocculation/sedimentation process, the analyzed for oocysts/eggs removal, viability.The qPCR demonstrated that MO reduced 87.9% AS, 97.8% oocysts.Due to their high density, was 99%-100%.The demonstrates able reduce infective increase...
Abstract The aim of this study was to verify the presence and identify species haemosporidian parasites in eared doves (Zenaida auriculata) Brazil. Two hundred eleven male female were trap-captured four different regions Londrina city, southern Whole blood collected EDTA tubes through heart puncture after euthanasia a CO2 chamber. A nested PCR targeting mitochondrial cytochrome b gene (cyt b) Haemoproteus spp./Plasmodium spp. performed, followed by an enzymatic digestion genus. Phylogenetic...
Bovine coccidiosis is caused by protozoa of the genus Eimeria. These mainly affect young animals, causing a decrease in production and consequent economic losses. The routine diagnosis made through morphological observation oocysts, which has several limitations. objective present study was to develop qPCR technique for diagnose Eimeria spp. cattle. For this purpose, 18S rRNA region DNA these parasites selected, since it with low variability among species. developed using SYBR Green,...