Resistencias a agentes antimicrobianos en bacterias de origen lácteo y avícola
- FERNÁNDEZ MÁRQUEZ, MARÍA LUISA
- Rosario Lucas López Director
- Antonio Gálvez del Postigo Ruiz Co-director
- María José Grande Burgos Co-director
Universidade de defensa: Universidad de Jaén
Fecha de defensa: 17 de febreiro de 2017
- Manuel Martínez Bueno Presidente/a
- Rubén Pérez Pulido Secretario
- Julio Villatoro Hernández Vogal
Tipo: Tese
Resumo
The aim of the present study was to determine the incidence of biocide tolerance and antibiotic resistance in bacterial isolates from dairy environments and eggshells. A collection of 120 bacterial isolates was obtained from small-medium enterprises involved in milk and goat cheese production. Presumptive Salmonella and E. coli isolates from eggs were also isolated. All isolates were tested for biocide tolerance and antibiotic resistance. Selected isolates were identified at molecular level, and investigated for the presence of biocide and antibiotic resistance genes. Several strains were biocide tolerant and antibiotic resistance, and carried resistance genes. Some E. coli strains were presumptive toxin producers. The results indicate that exposure to biocides facilitates co-selection of antibiotic resistance.