A5009579077- Helminth infection and control
- Coccidia and coccidiosis research
- Parasitic Infections and Diagnostics
- Toxoplasma gondii Research Studies
- Rabbits: Nutrition, Reproduction, Health
- Animal Nutrition and Physiology
- Herpesvirus Infections and Treatments
- Microbial infections and disease research
- Vector-Borne Animal Diseases
- Poxvirus research and outbreaks
- T-cell and Retrovirus Studies
- Rabies epidemiology and control
- Parasite Biology and Host Interactions
- Parasites and Host Interactions
- Agricultural and Food Production Studies
- Ruminant Nutrition and Digestive Physiology
- Diphtheria, Corynebacterium, and Tetanus
- Injury Epidemiology and Prevention
- Plant and fungal interactions
- Amoebic Infections and Treatments
- Plant Toxicity and Pharmacological Properties
- Bee Products Chemical Analysis
- RNA Interference and Gene Delivery
- Viral Infections and Vectors
- Plant and animal studies
Universidade Estadual de Londrina
2019-2025
Universidade Federal de Santa Maria
2016-2021
South Dakota State University
2017-2021
Colombian Corporation for Agricultural Research - AGROSAVIA
2019
Universidade Federal de Mato Grosso do Sul
2013-2014
Gastrointestinal nematodes resistant to anthelmintics have been reported in several regions of Brazil, and they may be associated with economic losses for the cattle industry. This study aimed evaluate resistance status gastrointestinal from naturally infected beef commercially available anthelmintics, as well test efficacy combinations against multi-resistant nematodes. Ten farms located Rio Grande do Sul state were selected by: farmers' consent; extensive raising system; availability...
ABSTRACT: This study aims to describe the molecular detection of Sarcocystis neurona, Toxoplasma gondii, and Neospora caninum in brain samples obtained from bovine fetuses at a slaughterhouse South Brazil. Brain 35 asymptomatic pregnant beef cows underwent nested polymerase chain reaction (PCR) amplify fragment 18S rRNA gene specific S. T. N. caninum. The amplicons were subjected two-step digestion process: first, with restriction enzyme DdeI, which differentiates gondii neurona;...
The gut microbiota has an important effect on poultry health and production. aim of this study was to evaluate the Colombian oregano (COO), Lippia origanoides Kunth, essential oil supplementation broiler chicken performance their cecal bacterial microbiome by 16S-based sequencing. Essential extracted steam distillation analyzed Gas chromatography/mass spectrometry. Two COO levels in feed, 0 ppm control (C) 100 (O), were evaluated 2 groups broilers either unchallenged (U) or challenged (E)...
The present study aimed to identify Eimeria species in young and adult sheep raised under intensive / or semi-intensive systems of a herd from Umuarama city, Parana State, Brazil using the traditional diagnostic methods correlate infection level/types different age/system this herd. Fecal samples were collected rectum 210 subjected laboratory analysis differentiate species. Furthermore, animals observed determine occurrences clinical subclinical forms eimeriosis. Out fecal samples, 147 (70%)...
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,...
Upper digestive tract (UDT) cancer is rare in cattle, however Southern Brazil, the UDT squamous cell carcinomas (SCCs) are relatively common and have been associated with bracken fern consumption presence of papillomas. Although a theory pathogenesis considers bovine papillomavirus type 4 (BPV-4) as cofactor development these SCCs, some aspects etiopathogenesis this disease need to be more investigated. In fact, detection BPV-4 papillomas scarce other regions world has not performed Brazil....
The biological activities and the structural arrangement of adevonin, a novel antimicrobial peptide, were investigated. trypsin inhibitor ApTI, isolated from Adenanthera pavonina seeds, was used as template for screening 18-amino acid peptides with predicted activity. Adevonin presented activity minimum inhibitory concentrations (MIC) ranging 1.86 to 7.35 µM against both Gram-positive – negative bacterial strains. Moreover, adevonin exerted time-kill effects within 10 min susceptible...
ABSTRACT: This study aimed to determine the frequency of anti-Neospora caninum antibody detection in three samples and sampling methods: A prevalence study, routine diagnostic laboratory samples, fetal bovine serum samples. These were collected from cattle Rio Grande do Sul (RS), southern Brazil, analyzed using indirect immunofluorescence reaction technique. For each method, a historical was used as reference for comparison. In 1,248 2020 2022. The N. RS state 22.8% (285/1248). figure...
ABSTRACT: Given the numerous reports of anthelminthic resistance sheep nematodes to different anthelmintic compounds, this study aimed evaluate status gastrointestinal from naturally infected monepantel in state Rio Grande do Sul. Four farms that present extensive raising system and absence treatment for 60 days were selected study. Lambs counts eggs per gram feces (EPG) ≥200 (sensitivity 50 EPG) one day (D-1) before select randomly separated into two groups, a control group an experimental...
The objective of this study was to evaluate the efficacy an experimental formulation toltrazuril 7.5% + Trimix™ on a naturally acquired infection Eimeria spp. in suckling lambs kept pasture and, another trial, comparative between lasalocid and newly weaned sheep under feedlot conditions that had been infected with In first experiment, 30 were divided into two groups: A - treated B- control. experiment 2, three I Trimix™, II III Treatment group showed 90, 99.4 87.3% days 5, 10 20,...
Abstract The macroscopic, histological, and molecular aspects of Sarcocystis spp. were examined in the tissues two cattle four sheep, 16 eight fragments analyzed respectively, condemned slaughterhouse. All 24 samples collected for detecting macrocysts macroscopic lesions. Subsequently, subdivided direct examination, polymerase chain reaction histopathological examination. sheep had grossly white round to oval tissue cysts, ranging from 0.3 1 cm diameter. In contrast, did not present visible...