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Salmonella and antimicrobial resistance in an animal-based agriculture river system

The aim of this study was to examine the Salmonella serovars and antimicrobial resistance within an animal-based agriculture river system. The study area consisted of a 1345ha upper part of Pinhal catchment. A total of 384 samples were collected in four years of monitoring. Salmonella was isolated f... Full description

Journal Title: Science of the Total Environment 15 February 2014, Vol.472, pp.654-661
Main Author: Palhares, Julio Cesar Pascale
Other Authors: Kich, Jalusa D. , Bessa, Marjo C. , Biesus, Luiza L. , Berno, Lais G. , Triques, Nelise J.
Format: Electronic Article Electronic Article
Language: English
Subjects:
Pig
ID: ISSN: 0048-9697 ; DOI: 10.1016/j.scitotenv.2013.11.052
Link: http://dx.doi.org/10.1016/j.scitotenv.2013.11.052
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recordid: sciversesciencedirect_elsevierS0048-9697(13)01335-1
title: Salmonella and antimicrobial resistance in an animal-based agriculture river system
format: Article
creator:
  • Palhares, Julio Cesar Pascale
  • Kich, Jalusa D.
  • Bessa, Marjo C.
  • Biesus, Luiza L.
  • Berno, Lais G.
  • Triques, Nelise J.
subjects:
  • Antimicrobial Resistance
  • Pig
  • Broiler
  • Salmonella
  • Water
ispartof: Science of the Total Environment, 15 February 2014, Vol.472, pp.654-661
description: The aim of this study was to examine the Salmonella serovars and antimicrobial resistance within an animal-based agriculture river system. The study area consisted of a 1345ha upper part of Pinhal catchment. A total of 384 samples were collected in four years of monitoring. Salmonella was isolated from 241 samples (62.7%), resulting in 324 isolates. The highest number of Salmonella sp. occurred in samples associated with sites with high stoking density animal unit per hectare. It was possible to demonstrate the variability of serovars in the study area: 30 different serovars were found and at least 11 per monitoring site. Thirty-three potentially related isolates were genotyped by PFGE, one major clone was observed in serovar Typhimurium, which occurred in animal feces (swine and bovine), and different sites and samplings proving the cross-contamination and persistence of this specific clone. Among 180 isolates submitted to an antimicrobial susceptibility test, 50.5% were susceptible to all 21 antimicrobials tested and 54 different profiles were found. In the current study, 49.5% of the tested isolates were resistant to at least one antimicrobial, and multi-resistance occurred in 18% of isolates. Results indicate a close interaction between animal-based agriculture, Salmonella, and antimicrobial resistance. •The highest number of samples contaminated with Salmonella sp. was associated with Sites with high stocking density.•30 different serovars were found and at least 11 per monitoring Site.•50.5% were susceptible to 21 antimicrobials and 54 different profiles were found.•49.5% of the isolates were resistant to at least one antimicrobial.•Multi-resistance occurred in 18% of isolates.
language: eng
source:
identifier: ISSN: 0048-9697 ; DOI: 10.1016/j.scitotenv.2013.11.052
fulltext: fulltext
issn:
  • 00489697
  • 0048-9697
url: Link


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titleSalmonella and antimicrobial resistance in an animal-based agriculture river system
creatorPalhares, Julio Cesar Pascale ; Kich, Jalusa D. ; Bessa, Marjo C. ; Biesus, Luiza L. ; Berno, Lais G. ; Triques, Nelise J.
ispartofScience of the Total Environment, 15 February 2014, Vol.472, pp.654-661
identifierISSN: 0048-9697 ; DOI: 10.1016/j.scitotenv.2013.11.052
subjectAntimicrobial Resistance ; Pig ; Broiler ; Salmonella ; Water
descriptionThe aim of this study was to examine the Salmonella serovars and antimicrobial resistance within an animal-based agriculture river system. The study area consisted of a 1345ha upper part of Pinhal catchment. A total of 384 samples were collected in four years of monitoring. Salmonella was isolated from 241 samples (62.7%), resulting in 324 isolates. The highest number of Salmonella sp. occurred in samples associated with sites with high stoking density animal unit per hectare. It was possible to demonstrate the variability of serovars in the study area: 30 different serovars were found and at least 11 per monitoring site. Thirty-three potentially related isolates were genotyped by PFGE, one major clone was observed in serovar Typhimurium, which occurred in animal feces (swine and bovine), and different sites and samplings proving the cross-contamination and persistence of this specific clone. Among 180 isolates submitted to an antimicrobial susceptibility test, 50.5% were susceptible to all 21 antimicrobials tested and 54 different profiles were found. In the current study, 49.5% of the tested isolates were resistant to at least one antimicrobial, and multi-resistance occurred in 18% of isolates. Results indicate a close interaction between animal-based agriculture, Salmonella, and antimicrobial resistance. •The highest number of samples contaminated with Salmonella sp. was associated with Sites with high stocking density.•30 different serovars were found and at least 11 per monitoring Site.•50.5% were susceptible to 21 antimicrobials and 54 different profiles were found.•49.5% of the isolates were resistant to at least one antimicrobial.•Multi-resistance occurred in 18% of isolates.
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descriptionThe aim of this study was to examine the Salmonella serovars and antimicrobial resistance within an animal-based agriculture river system. The study area consisted of a 1345ha upper part of Pinhal catchment. A total of 384 samples were collected in four years of monitoring. Salmonella was isolated from 241 samples (62.7%), resulting in 324 isolates. The highest number of Salmonella sp. occurred in samples associated with sites with high stoking density animal unit per hectare. It was possible to demonstrate the variability of serovars in the study area: 30 different serovars were found and at least 11 per monitoring site. Thirty-three potentially related isolates were genotyped by PFGE, one major clone was observed in serovar Typhimurium, which occurred in animal feces (swine and bovine), and different sites and samplings proving the cross-contamination and persistence of this specific clone. Among 180 isolates submitted to an antimicrobial susceptibility test, 50.5% were susceptible to all 21 antimicrobials tested and 54 different profiles were found. In the current study, 49.5% of the tested isolates were resistant to at least one antimicrobial, and multi-resistance occurred in 18% of isolates. Results indicate a close interaction between animal-based agriculture, Salmonella, and antimicrobial resistance. •The highest number of samples contaminated with Salmonella sp. was associated with Sites with high stocking density.•30 different serovars were found and at least 11 per monitoring Site.•50.5% were susceptible to 21 antimicrobials and 54 different profiles were found.•49.5% of the isolates were resistant to at least one antimicrobial.•Multi-resistance occurred in 18% of isolates.
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abstractThe aim of this study was to examine the Salmonella serovars and antimicrobial resistance within an animal-based agriculture river system. The study area consisted of a 1345ha upper part of Pinhal catchment. A total of 384 samples were collected in four years of monitoring. Salmonella was isolated from 241 samples (62.7%), resulting in 324 isolates. The highest number of Salmonella sp. occurred in samples associated with sites with high stoking density animal unit per hectare. It was possible to demonstrate the variability of serovars in the study area: 30 different serovars were found and at least 11 per monitoring site. Thirty-three potentially related isolates were genotyped by PFGE, one major clone was observed in serovar Typhimurium, which occurred in animal feces (swine and bovine), and different sites and samplings proving the cross-contamination and persistence of this specific clone. Among 180 isolates submitted to an antimicrobial susceptibility test, 50.5% were susceptible to all 21 antimicrobials tested and 54 different profiles were found. In the current study, 49.5% of the tested isolates were resistant to at least one antimicrobial, and multi-resistance occurred in 18% of isolates. Results indicate a close interaction between animal-based agriculture, Salmonella, and antimicrobial resistance. •The highest number of samples contaminated with Salmonella sp. was associated with Sites with high stocking density.•30 different serovars were found and at least 11 per monitoring Site.•50.5% were susceptible to 21 antimicrobials and 54 different profiles were found.•49.5% of the isolates were resistant to at least one antimicrobial.•Multi-resistance occurred in 18% of isolates.
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doi10.1016/j.scitotenv.2013.11.052
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date2014-02-15