A5011830997- Toxoplasma gondii Research Studies
- Herpesvirus Infections and Treatments
- Parasitic Infections and Diagnostics
- Ruminant Nutrition and Digestive Physiology
- T-cell and Retrovirus Studies
- Helminth infection and control
- Animal Nutrition and Physiology
- Rabies epidemiology and control
- Animal Disease Management and Epidemiology
- Vector-Borne Animal Diseases
- Coccidia and coccidiosis research
- Parasite Biology and Host Interactions
- Viral Infections and Vectors
- Microbial infections and disease research
- Bird parasitology and diseases
- Genetic and phenotypic traits in livestock
- Soil Management and Crop Yield
- Sex work and related issues
- Growth and nutrition in plants
- Meat and Animal Product Quality
- Research on Leishmaniasis Studies
- Food composition and properties
- Phytoestrogen effects and research
- Cardiac Imaging and Diagnostics
- Virology and Viral Diseases
Universidade Federal do Maranhão
2017-2025
Universidade Estadual do Maranhão
2022
Universidade Estadual de Londrina
2007-2015
Agrupamento de Escolas Nuno Álvares
2015
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),...
We evaluated the humoral and cellular immune responses in pigs immunized intranasally with crude rhoptry proteins of Toxoplasma gondii plus Quil-A. The experiment used 13 mixed-breed divided into following three groups: G1 (vaccinated-challenged, n=6), which received vaccine (200(g/dose); G2 (adjuvant-challenged, n=4), PBS Quil-A; G3 (unvaccinated-challenged, n=3), was control group. treatments were performed at days 0, 21, 42. Three from produced IgG IgM antibody levels above cut-off ELISA...
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...
The objective of this study was to evaluate the fermentative characteristics, chemical composition, and in vitro digestibility a total mixed ration silage containing two babassu by-products, starchy flour cake. treatments were distributed completely randomised design four five replications. consisted corn silage, based on standard soybean diet, with flour, No significant difference observed pH values (p = 0.256) for studied silages. Higher dry matter recovery silages diets. presented lower...
During this study, cats were immunized by the intranasal and rectal routes with crude rhoptry proteins of Toxoplasma gondii admixed Quil-A. Twenty-five domestic short hair divided into five groups (n=5) used during evaluation: G1 G3 received 200 μg Quil-A (20 μg) routes, respectively; G2 G4 bovine serum albumin (BSA, μg/dose) μg); G5 animals served as unvaccinated controls. All treatments performed at days 0, 21, 42, 63. The challenge was done 800 cysts ME49 T. strain day 70 (challenge day)....
The aim of the present study was to evaluate oocyst shedding in cats immunized by nasal route with T. gondii proteins ROP2. Twelve short hair (Felis catus) were divided three groups G1, G2 and G3 (n=4). Animals from G1 received 100 μg rROP2 plus 20 Quil-A, BSA only saline solution (control group). All treatments done intranasal at days 0, 21, 42, 63. challenge performed all on day 70 ≅ 800 tissue cysts ME-49 strain oral route. shed less oocysts (86.7%) than control groups. ELISA used detect...
The aim of the present study was to evaluate fermentative profile, chemical composition, and in situ degradability total mixed ration silage with or without babassu byproducts formulated for sheep diets. experiment performed a completely randomized design, four treatments (silages) five replications (silos). were SS: sugarcane (control); SSCS: corn soybean meal; SSBF: corn, meal, flour; SSBC: cake. experimental diets be isoprotein, meet nutritional requirements confined an average weight 20...
TgROP2 is an intracellular protein associated with rhoptries of Toxoplama gondii and antigen component a candidate vaccine for toxoplasmosis. The purpose the present study was to evaluate efficacy rTgROP2 stimulate humoral cellular immune responses in BALB/c mice via intranasal injection. partial coding sequence (196-561) amplified by PCR from genomic T. RH strain DNA cloned into pTrcHis expression vector. Escherichia coli Rosetta 2 cells transformed pTrcHis-TgROP2 showed high levels (~1...
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...
Neosporosis is an infectious disease caused by Neospora caninum, a protozoan parasite that has worldwide distribution and responsible for enormous economic losses in cattle. Birds are considered good bioindicator of environmental contamination, since they feed on the ground, being exposed to N. caninum oocysts. The aim this study was determine occurrence antibodies against verify presence DNA brain from free-ranging eared doves (Zenaida auriculata) Southern Brazil. For purpose, blood samples...
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,...
This study aimed to determine the prevalence of gastrointestinal and renal helminths from naturally infected Zenaida auriculatacaptured in Londrina, Paraná State. Two hundred one Eared doves were trapped collected identified according morphological structures. One sixteen (57.71%) parasitized by with specific prevalences forOrnithostrongylus quadriradiatus 50 (24.88%),Ascaridia columbae 47 (23.38%), Paratanaisia bragai P. confusa 34 (16.92%),Tetrameres fissispina 17 (8.46%), Synhimantus...
The present study aimed to investigate an abortion outbreak in a goatherd from Southern Brazil. herd had 304 goats, being 227 females and 77 males. Sixty-one animals (44.8%) out of 136 dams aborted. Indirect immunofluorescence assay (IFA) was performed for anti-T.gondii antibody detection showed 59/61 (96.7%) positive (titers ¡Ý64). Fifty-five (93.2%) 59 titers ¡Ý 1024. Tissue samples eight aborted fetuses raw milk their were collected mouse bioassay PCR. Two T. gondii infection both treated...
The objectives in this experiment were to compare the effects of adding babassu oil or buriti diet sheep on physiological response, feeding behaviour and water intake. Twenty-one lambs (24.6 ± 3.8 kg BW, mean SD) distributed an unbalanced randomized block design, using three diets: (1) basal without added (Control, CON); (2) 4% FA.kg−1 DM (BAO) (3) (BUO), containing 30% roughage. addition vegetable did not change body temperature rectal temperature; however, BAO decreased (P < 0.05)...
The aim of this study was to detect the presence IgG antibodies anti-Leishmania spp., Toxoplasma gondii and Neospora caninum in dogs from a Veterinary Hospital Universidade Estadual de Londrina. Blood samples 112 animals were obtained by jugular venipuncture obtain sera. tested indirect immunofluorescence anti-N. anti-T. gondii. Thirteen (11.61%), 25 (22.32%), 57 (50.89%) positive for Leishmania N. caninum, T. gondii, respectively. co-presence spp. observed 6 (5.36%), 8 (14.7%), 18 (16.07%)...
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...
This study aimed to determine the protein and carbohydrate fractions as well in situ rumen degradability of Brachiaria decumbens silage (BDS) supplemented with soybean hulls. Five hull inclusion levels were used: 0, 10, 20, 30, 40% fresh matter B. grass, distributed into a completely randomized design five replications. The hulls caused linear decrease (p < 0.001) A + B1 increase fraction C. percentage non-protein nitrogen increased linearly 0.001), but B2 B3 presented negative quadratic...