A5032234145- Animal Nutrition and Physiology
- Salmonella and Campylobacter epidemiology
- Viral gastroenteritis research and epidemiology
- Insect and Pesticide Research
- Bacterial Genetics and Biotechnology
- Piperaceae Chemical and Biological Studies
- Clostridium difficile and Clostridium perfringens research
- Biosensors and Analytical Detection
- Listeria monocytogenes in Food Safety
- Bacteriophages and microbial interactions
- Animal Behavior and Welfare Studies
- Food Safety and Hygiene
- Rabbits: Nutrition, Reproduction, Health
- Nutrition and Health in Aging
- Enterobacteriaceae and Cronobacter Research
- Escherichia coli research studies
- Child Nutrition and Water Access
- Identification and Quantification in Food
- Pharmaceutical and Antibiotic Environmental Impacts
- Pineapple and bromelain studies
- Essential Oils and Antimicrobial Activity
- Antibiotic Resistance in Bacteria
- Antibiotics Pharmacokinetics and Efficacy
- Banana Cultivation and Research
- Mycotoxins in Agriculture and Food
Universidade Estadual Paulista (Unesp)
2016-2024
Universidade de São Paulo
2020
Salmonella Enteritidis causes fowl paratyphoid in poultry and is frequently associated to outbreaks of food-borne diseases humans. The role flagella flagella-mediated motility into host-pathogen interplay not fully understood requires further investigation. In this study, one-day-old chickens were challenged orally with a wild-type strain Enteritidis, non-motile but flagellated (SE ΔmotB) or non-flagellated ΔfliC) evaluate their ability colonise the intestine spread systemically also...
Until 2015, polymyxin resistance was primarily attributed to chromosomal mutations. However, with the first report of mobile colistin (mcr-1) in commensal Escherichia coli from food animals China, landscape has changed. To evaluate presence Salmonella spp., a drop screening test for and B carried out on 1156 isolates non-human origin (animals, food, environment), received Brazil, between 2016 2021. Subsequently, 210 resistant results were subjected gold-standard (broth microdilution) both B....
Antimicrobial resistance (AMR) is now a major global problem largely resulting from the overuse of antibiotics in humans and livestock. In some AMR bacteria, encoded by conjugative plasmids expressing sex-pili that can readily spread through bacterial populations. The aim this study was to use sex pilus-specific (SPS) phage reduce carriage plasmids. Here, we demonstrate SPS kill Escherichia coli select for plasmid loss vitro. For first time, also both prevent Salmonella Enteritidis infection...
The present study examined the effect of aflatoxin (AFB 1 ) and fumonisin (FB at levels 2 mg kg -1 AFB 100 FB efficiency use different adsorbent based on sodium calcium aluminosilicate growth performance, hematological parameters, biochemical parameters broilers.A total 1,440 Cobb broilers were distributed into following treatments: positive control (PC) -no mycotoxin (AD); PC+3AD mycotoxin, with 3 g in feed; negative (NC) -only mycotoxin; NC+1AD -with NC+2AD NC+3AD feed.The amounts added to...
Currently there are 2659 Salmonella serovars. The host-specific biovars Pullorum and Gallinarum cause systemic infections in food-producing wild birds. Fast diagnosis is crucial to control the dissemination avian environments. present work describes development of a multiplex qPCR real time using low-cost DNA dye (SYBr Green) identify quantify these biovars. Primers were chosen based on genomic regions difference (RoD) optimized dimers. pSGP detect both but not other serovars pSG pSP...
Salmonella Gallinarum is a host-restrict pathogen that causes fowl typhoid, severe systemic disease one of the major concerns to poultry industry worldwide. When infecting bird, SG makes use evasion mechanisms survive and replicate within macrophages. In this context, phoPQ genes encode two-component regulatory system (PhoPQ) regulates virulence responsible for adaptation spp. antimicrobial factors such as low pH, peptides deprivation bivalent cations. The role mentioned remains be...
Salmonella Gallinarum (SG) is an avian-restricted pathogen that causes fowl typhoid in poultry. Although it has been reported frequently over many decades poultry flocks worldwide, the microorganism more commonly associated with developing countries, particularly those high ambient temperatures, where acute form of disease results considerable economic losses. A detailed investigation environmental factors affect course may assist identifying effective prevention and control measures. Heat...
Brazil is considered as a great broiler feet exporter, especially for the Chinese trade. Contact lesions at tibiotarsal region are responsible economic losses and there no model its classification, thereby this study presents fast practical grade system to be used in poultry industry proposes these lesion characterizations into three different grades. For this, correlation was made between macroscopic, histological findings microbiological quantification (Escherichia coli, Staphylococcus...
Piper cubeba is an Asian pepper used in popular medicine for its known antimicrobial, antiparasitic, and anti-inflammatory actions. The study evaluated the effects of dietary inclusion ethanolic extract (PE) as a replacement anantibiotic growth promoter (AGP) on performance biochemical serum profile 1- to 21-d-old broilers (Cobb®). Two hundred one-d-old were housed experimental battery cages distributed completely randomized design. following treatments applied: negative control (NC) - basal...
The incidence of foodborne diseases caused by the genus Salmonella spp. in industrialized countries is often high epidemiological surveys. Obtaining a rapid diagnostic test for identification bacteria crucial order to rapidly implement control measures contain bacterial spread, reduce losses animal production and avoid risks from food-borne infections human health. aim this study was standardize duplex real-time PCR using SYBr Green I differential quantitative diagnosis S. Typhimurium...
Fowl paratyphoid infections are caused by different Salmonella serovars that can affect a wide range of hosts. Due to its complex epidemiology, serovar identification is crucial for the development and implementation monitoring control programs in poultry farms. Moreover, characterization antimicrobial resistance profiles strains isolated from livestock relevant public health because they common causative agent foodborne diseases. The objective this study was investigate presence spp....
The increased worldwide demand for chicken meat requires constant automation of operating systems and the proper implementation self-control programs by slaughterhouses. Thus, this study aimed to evaluate efficacy a self-washing system using heated water on reducing load public health concern bacteria broiler feet-cutter disc. In three-month period, 84 samples (n = 42 per group) were collected microbiological analysis from disc with an operational process Non-Heated Water (NHW) Heated (HW)....
Poultry products may be a source of foodborne human salmonellosis. The use alternatives to antimicrobials that are not harmful humans reduce the presence Salmonella spp. in poultry production. Among used, organic acids stand out. In present study, three different acid (OA) blends were evaluated for control Heidelberg (SH) commercial broilers. Day-old chicks (n = 114) randomly assigned four treatments, with replicates 12 birds each. Birds treatments A and B received SCFA (0.2mL/L) + MCFA...
The composting technique has been increasingly highlighted in poultry production units, as an efficient and low-cost solution for the destination of carcasses. process is based on accelerated decomposition organic material under high temperatures, associated with eliminating pathogenic microorganisms. This study aims to evaluate effectiveness time necessary elimination Salmonella Gallinarum carcasses submitted process. was carried out following models used field, microbiological analysis...