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| Benevides,VP; Rubio,MS; Alves,LBR; Barbosa,FO; Souza,AIS; Almeida,AM; Casas,MRT; Guastalli,EAL; Soares,NM; Berchieri Jr,A. |
| ABSTRACT Fowl paratyphoid infections are caused by different Salmonella serovars that can affect a wide range of hosts. Due to its complex epidemiology, Salmonella serovar identification is crucial for the development and implementation of monitoring and control programs in poultry farms. Moreover, the characterization of the antimicrobial resistance profiles of Salmonella strains isolated from livestock is relevant to public health because they are a common causative agent of foodborne diseases. The objective of this study was to investigate the presence of Salmonella spp. and to identify the antimicrobial resistance profiles of strains isolated in the midwestern region of São Paulo state, which accounts for the highest production of table eggs in Brazil.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antimicrobial susceptibility; Foodborne disease; Salmonellosis; Multi-drug resistance; Public health. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2020000200319 |
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| Guastalli,BHL; Batista,DFA; Souza,AIS; Guastalli,EAL; Lopes,PD; Almeida,AM; Prette,N; Barbosa,FO; Stipp,DT; Freitas Neto,OC. |
| ABSTRACT In poultry processing plants, disinfectants are often added to pre-chilling water tanks to reduce microbial contamination. The present study aimed at evaluating the effect of five disinfectants (acidified sodium chlorite, alkyl dimethyl benzyl ammonium chloride, chlorine dioxide, peracetic acid, and sodium hypochlorite) on the populations of food quality indicator microorganisms and on Salmonella Enteritidis (SE) in the presence and absence of organic matter. The results showed that chlorine dioxide and sodium hypochlorite did not reduce microbial carcass counts. On the other hand, acidified sodium chlorite, alkyl dimethyl benzyl ammonium chloride and peracetic acid reduced total and fecal coliform counts. Peracetic acid reduced the number of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler carcasses; Disinfectant; Indicator microorganisms; Pre-chilling tank; Salmonella Enteritidis. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000200217 |
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| Oliveira,ES; Cardozo,MV; Borzi,MM; Borges,CA; Guastalli,EAL; Ávila,FA. |
| ABSTRACT Avian pathogenic Escherichiacoli (APEC) virulence mechanism has been continuously studied and it is believed to be multifactorial and because of this, this work aimed to characterize potentially APEC strains isolated from free-range hens. Isolates were submitted to PCR for the detection of virulence genes, which were of high prevalence. In vivo inoculation of day-old chicks revealed that 49 of these strains were of high and intermediate pathogenicity. In addition, isolates were submitted to antimicrobials susceptibility test with the majority of the strains presenting multiresistance. Phylogenetic analysis showed a greater presence of potentially APEC isolates in-group B2. In addition, high heterogeneity was detected among the isolates byXbaI... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: APEC; Backyard chickens; Colibacillosis; Pathogenicity; Virulence factors. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000100326 |
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| Freitas Neto,OC de; Angela,HL da; Soares,NM; Guastalli,EAL; Almeida,AM de; Berchieri Junior,A. |
| In the present study Salmonella spp. was surveyed in four flocks of meat-type quails reared in a farm that also had processing plant on site, located in the region of Bastos, state of São Paulo, Brazil. Meconium samples of one-day-old quail chicks were collected from transport cardboard boxes. Cecal content was collected on days 7, 14, 21, 28 and 35 of rearing. At 36 days of age, birds were slaughtered in the farm's processing plant, where two samples of water from the scalding and the chilling tanks and four carcasses per flock were collected. All samples were examined for Salmonella spp. using traditional bacteriological methods. Salmonella spp. was present in meconium samples of three flocks and in cecal feces of the four flocks. This bacterium was also... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carcass; Meat-type quails; Salmonella spp.; Processing plant. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000300016 |
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