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Phenotypic and genotypic characterizations of bacteria isolated from the respiratory microbiota of healthy turkeys with potential for probiotic composition.
Trintinaglia, Michele; de Brito, Kelly Cristina Tagliari; Kobayashi, Renata Katsuko Takayama; Otutumi, Luciana Kazue; Nakazato, Gerson; de Souza Gazal, Luís Eduardo; Cruz, Victor Dellevedove; de Brito, Benito Guimarães.
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  • Trintinaglia M; Secretariat of Agriculture, Department of Agricultural Diagnosis and Research - Postgraduate Program in Animal Health of the Institute for Veterinary Research Desidério Finamor, Livestock and Rural Development of Rio Grande do Sul, Eldorado do Sul, (RS), Brazil.
  • de Brito KCT; Secretariat of Agriculture, Department of Agricultural Diagnosis and Research - Postgraduate Program in Animal Health of the Institute for Veterinary Research Desidério Finamor, Livestock and Rural Development of Rio Grande do Sul, Eldorado do Sul, (RS), Brazil. kellybritofepagro@gmail.com.
  • Kobayashi RKT; Department of Microbiology, State University of Londrina, Londrina, Brazil.
  • Otutumi LK; Postgraduate Program in Animal Science with Emphasis on Bioactive Products), Universidade Paranaense, Umuarama, Brazil.
  • Nakazato G; Department of Microbiology, State University of Londrina, Londrina, Brazil.
  • de Souza Gazal LE; Department of Microbiology, State University of Londrina, Londrina, Brazil.
  • Cruz VD; Department of Microbiology, State University of Londrina, Londrina, Brazil.
  • de Brito BG; Secretariat of Agriculture, Department of Agricultural Diagnosis and Research - Postgraduate Program in Animal Health of the Institute for Veterinary Research Desidério Finamor, Livestock and Rural Development of Rio Grande do Sul, Eldorado do Sul, (RS), Brazil.
Vet Res Commun ; 48(1): 381-390, 2024 Feb.
Article en En | MEDLINE | ID: mdl-37707656
Desirable characteristics of Staphylococcus sp., Streptococcus sp., Bacillus sp., Klebsiella sp., Escherichia coli, and Pseudomonas pseudoalcaligenes isolated from the trachea of healthy turkeys were evaluated as probiotic candidates in the search for new alternatives to solve antimicrobial resistance issues in poultry. In current study phenotypic and genotypic capacity to produce bacteriocin-like substances, efficacy to inhibit the growth of avian pathogens, susceptibility to antimicrobials of bacteria isolated from the respiratory microbiota of healthy turkeys, and the presence of virulence-associated genes (VAGs) predictors of Avian Pathogenic Escherichia coli (APEC) were evaluated. Nine E. coli and one Klebsiella sp. strains produced bacteriocin-like substances, and all harbored the cvaA gene. Some strains also showed antagonistic activity against APEC. Multidrug-resistant profile was found in 54% of the strains. Six strains of bacteriocin-like substances producing E. coli also harbored 3-5 VAGs. The study showed that two bacterial genuses (Klebsiella sp. and E. coli) present desirable probiotic characteristics. Our results identified strains with potential for poultry's respiratory probiotic.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Enfermedades de las Aves de Corral / Bacteriocinas / Infecciones por Escherichia coli Tipo de estudio: Prognostic_studies Límite: Animals Idioma: En Revista: Vet Res Commun Año: 2024 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Suiza
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Enfermedades de las Aves de Corral / Bacteriocinas / Infecciones por Escherichia coli Tipo de estudio: Prognostic_studies Límite: Animals Idioma: En Revista: Vet Res Commun Año: 2024 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Suiza