Risk assessment of salmonella contamination of poultry carcasses during trading period

Abstract

The goal of the proposed research was to determine the load and diversity of bacterial flora of poultry carcasses delivered to the Central Agricultural Market of Chisinau from different poultry companies inside the country and analyze the risks of contamination of carcasses with pathogenic microorganisms. Samples were taken from refrigerated and frozen poultry carcasses (chicken, broiler, duck) which were delivered for sale from private and individual poultry farms from different districts of the country. Samples were performed on nutrient media like: peptone agar, nutrient medium Endo, Levin, Salmonella Shigela Agar, Saburo agar. The culture medias were inseminated from the surface as well as the inside of the carcasses samples. As a result, the bacteriological investigations demonstrated the presence of various combinations of conditional pathogenic micro-organisms in all samples collected from the surface of poultry carcasses and 35% from samples collected from the inside of the carcasses. The associations found where: Streptococcus, Staphylococcus, E. coli, Salmonella and microscopic fungal. The result of the antibiotic resistance test confirmed the presence of antibiotic-resistant forms of bacteria; thereby, the highest sensitivity of the isolated microbial flora from poultry carcasses was established for florfinecol (27mm) and tilmycosiny (19mm) and the lowest sensitivity was established for neomycin and tetracycline (0-2mm).