Anti-Salmonella Potential of New Strains with the Application in the Poultry Industry.

Probiotics are considered an alternative to antibiotics in the prevention and treatment of diseases in poultry. However, to use probiotics as proposed above, it is necessary to evaluate their properties in detail and to select the most effective bacterial strains in the application targeted. In this study, probiotic properties of new sp. strains were investigated and their antimicrobial activity against 125 environmental strains of sp. was determined using the agar slab method. Furthermore, their survival in the presence of bile salts and at low pH, antibiotics susceptibility, aggregation and coaggregation ability, adherence to polystyrene and Caco-2 cells, and cytotoxicity were investigated. Each strain tested showed antagonistic activity against at least 96% of the environmental sp. strains and thus representing a highly epidemiologically differentiated collection of poultry isolates. In addition, the probiotic properties of new strains are promising. Therefore, all strains examined showed a high potential for use in poultry against salmonellosis. Probiotics are considered an alternative to antibiotics in the prevention and treatment of diseases in poultry. However, to use probiotics as proposed above, it is necessary to evaluate their properties in detail and to select the most effective bacterial strains in the application targeted. In this study, probiotic properties of new sp. strains were investigated and their antimicrobial activity against 125 environmental strains of sp. was determined using the agar slab method. Furthermore, their survival in the presence of bile salts and at low pH, antibiotics susceptibility, aggregation and coaggregation ability, adherence to polystyrene and Caco-2 cells, and cytotoxicity were investigated. Each strain tested showed antagonistic activity against at least 96% of the environmental sp. strains and thus representing a highly epidemiologically differentiated collection of poultry isolates. In addition, the probiotic properties of new strains are promising. Therefore, all strains examined showed a high potential for use in poultry against salmonellosis.