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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
16/09/2025 |
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Data da última atualização: |
16/09/2025 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
DAMASCENO, M. D.; GONÇALVES, M. S.; SILVA, B. H. P. da; CARNEIRO, G. B.; REIS, A. G.; PEREIRA, B. R.; COSTA, A. C. T. R. B.; BUENO FILHO, J. S. de S.; DORNELES, E. M. S.; GUIMARÃES, A. S. |
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Afiliação: |
MARCILENE DANIEL DAMASCENO, UNIVERSIDADE FEDERAL DE LAVRAS; MAYSA SERPA GONÇALVES, UNIVERSIDADE FEDERAL DE LAVRAS; BRUNA HENRIQUE PINTO DA SILVA, UNIVERSIDADE FEDERAL DE LAVRAS; GIOVANNA BOTELHO CARNEIRO, UNIVERSIDADE FEDERAL DE LAVRAS; ALICE GONÇALVES REIS, UNIVERSIDADE FEDERAL DE LAVRAS; BRUNA REIS PEREIRA, UNIVERSIDADE FEDERAL DE LAVRAS; ANNA CECÍLIA TROLESI REIS BORGES COSTA, UNIVERSIDADE FEDERAL DE LAVRAS; JULIO SILVIO DE SOUSA BUENO FILHO, UNIVERSIDADE FEDERAL DE LAVRAS; ELAINE MARIA SELES DORNELES, UNIVERSIDADE FEDERAL DE LAVRAS; ALESSANDRO DE SA GUIMARAES, CNPGL. |
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Título: |
Susceptibility of mastitis-causing pathogens (Escherichia coli and Staphylococcus aureus) to disinfectants used as teat dipping. |
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Ano de publicação: |
2025 |
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Fonte/Imprenta: |
Veterinary Microbiology, v. 309, 110678, 2025. |
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DOI: |
https://doi.org/10.1016/j.vetmic.2025.110678 |
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Idioma: |
Inglês |
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Conteúdo: |
Mastitis is one of the most important diseases for dairy farming and Escherichia coli and Staphylococcus aureus are among the most common mastitis-causing pathogens. Aiming to prevent mastitis, pre- and post-milking disinfectant dips are used, but this constant exposure can contribute to the emergence of antimicrobial resistant strains. Thus, this study aimed to determine the in vitro susceptibility of mastitis-causing S. aureus and E. coli to disinfectants used as teat dipping. The disinfectants tested were hydrogen peroxide, sodium hypochlorite, chlorhexidine digluconate, lactic acid, quaternary ammonium, and iodine. Susceptibility was assessed through broth microdilution to obtain minimal inhibitory concentration (MIC). In general, all E. coli and S. aureus strains were inhibited with lower concentrations of chlorhexidine digluconate, hydrogen peroxide, iodine, lactic acid, and quaternary ammonium than those used in field. Regarding sodium hypochlorite, 80.77 % (42/52) of the E. coli isolates were not susceptible to the concentration recommended for use as teat dipping, while 34.5 % (138/400) of the S. aureus had the MIC equal or higher than this same concentration. In addition, an increase in the MIC according to the year of isolation of the pathogens was observed, with the latest isolates being more tolerant to all disinfectants, with exception of chlorhexidine digluconate. These results strongly suggest that continuous exposure to disinfectants can lead to the selection of less susceptible strains in dairy farming, which is a major issue for animal and public health. MenosMastitis is one of the most important diseases for dairy farming and Escherichia coli and Staphylococcus aureus are among the most common mastitis-causing pathogens. Aiming to prevent mastitis, pre- and post-milking disinfectant dips are used, but this constant exposure can contribute to the emergence of antimicrobial resistant strains. Thus, this study aimed to determine the in vitro susceptibility of mastitis-causing S. aureus and E. coli to disinfectants used as teat dipping. The disinfectants tested were hydrogen peroxide, sodium hypochlorite, chlorhexidine digluconate, lactic acid, quaternary ammonium, and iodine. Susceptibility was assessed through broth microdilution to obtain minimal inhibitory concentration (MIC). In general, all E. coli and S. aureus strains were inhibited with lower concentrations of chlorhexidine digluconate, hydrogen peroxide, iodine, lactic acid, and quaternary ammonium than those used in field. Regarding sodium hypochlorite, 80.77 % (42/52) of the E. coli isolates were not susceptible to the concentration recommended for use as teat dipping, while 34.5 % (138/400) of the S. aureus had the MIC equal or higher than this same concentration. In addition, an increase in the MIC according to the year of isolation of the pathogens was observed, with the latest isolates being more tolerant to all disinfectants, with exception of chlorhexidine digluconate. These results strongly suggest that continuous exposure to disinfectants can lead to the selectio... Mostrar Tudo |
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Palavras-Chave: |
Mastite. |
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Thesagro: |
Bovino; Desinfetante; Doença Animal; Ordenha; Patógeno. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02554naa a2200313 a 4500
001 2178819
005 2025-09-16
008 2025 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.vetmic.2025.110678$2DOI
100 1 $aDAMASCENO, M. D.
245 $aSusceptibility of mastitis-causing pathogens (Escherichia coli and Staphylococcus aureus) to disinfectants used as teat dipping.$h[electronic resource]
260 $c2025
520 $aMastitis is one of the most important diseases for dairy farming and Escherichia coli and Staphylococcus aureus are among the most common mastitis-causing pathogens. Aiming to prevent mastitis, pre- and post-milking disinfectant dips are used, but this constant exposure can contribute to the emergence of antimicrobial resistant strains. Thus, this study aimed to determine the in vitro susceptibility of mastitis-causing S. aureus and E. coli to disinfectants used as teat dipping. The disinfectants tested were hydrogen peroxide, sodium hypochlorite, chlorhexidine digluconate, lactic acid, quaternary ammonium, and iodine. Susceptibility was assessed through broth microdilution to obtain minimal inhibitory concentration (MIC). In general, all E. coli and S. aureus strains were inhibited with lower concentrations of chlorhexidine digluconate, hydrogen peroxide, iodine, lactic acid, and quaternary ammonium than those used in field. Regarding sodium hypochlorite, 80.77 % (42/52) of the E. coli isolates were not susceptible to the concentration recommended for use as teat dipping, while 34.5 % (138/400) of the S. aureus had the MIC equal or higher than this same concentration. In addition, an increase in the MIC according to the year of isolation of the pathogens was observed, with the latest isolates being more tolerant to all disinfectants, with exception of chlorhexidine digluconate. These results strongly suggest that continuous exposure to disinfectants can lead to the selection of less susceptible strains in dairy farming, which is a major issue for animal and public health.
650 $aBovino
650 $aDesinfetante
650 $aDoença Animal
650 $aOrdenha
650 $aPatógeno
653 $aMastite
700 1 $aGONÇALVES, M. S.
700 1 $aSILVA, B. H. P. da
700 1 $aCARNEIRO, G. B.
700 1 $aREIS, A. G.
700 1 $aPEREIRA, B. R.
700 1 $aCOSTA, A. C. T. R. B.
700 1 $aBUENO FILHO, J. S. de S.
700 1 $aDORNELES, E. M. S.
700 1 $aGUIMARÃES, A. S.
773 $tVeterinary Microbiology$gv. 309, 110678, 2025.
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| 1. |  | MATTOS, C. da C. R.; PEREIRA, M. de A.; COSTA, F. P. Custos de produção da pecuária de corte de baixo nível tecnológico no Mato Grosso do Sul. In: JORNADA CIENTÍFICA EMBRAPA GADO DE CORTE, 12., 2016, Campo Grande, MS. Anais... Brasília, DF: Embrapa Gado de Corte, 2016. 112 p. (Embrapa Gado de Corte. Documentos, 227). Comissão organizadora: Marta Pereira da Silva - Coordenadora; Mateus Figueiredo Santos - Vice-Coordenador; Rodrigo Carvalho Alva - Secretário Executivo e Editoração.| Tipo: Resumo em Anais de Congresso |
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