Microbial challenges of poultry meat production

Area of Science:

• Food Science
• Microbiology
• Animal Science

Background:

• Food safety and shelf-life are critical in broiler meat production, with a focus on pathogens like Salmonella and Campylobacter.
• Spoilage bacteria also pose commercial threats, and consumer perception favors organic production quality.
• Ensuring pathogen-free live animals is key to maintaining safe processing lines.

Purpose of the Study:

• To compare the bacterial quality of chicken meat from organic (free-grazing) and conventional production.
• To assess microbial contamination and the presence of specific pathogenic bacteria in both production types.
• To evaluate meat quality based on traditional microbiological criteria.

Main Methods:

• Samples included 80 free-grazing broiler carcasses from rural households and 200 conventional chicken parts from supermarkets.
• Microbiological testing involved Salmonella spp., Listeria monocytogenes, Staphylococcus aureus, Enterobacteriaceae, Escherichia coli, Campylobacter spp., and C. perfringens.
• Standard ISO methods, API-tests, and Vitek 2 Identification System were used for bacterial isolation, identification, and biochemical determination.

Main Results:

• Free-grazing broiler carcasses exhibited high levels of microbial contamination.
• Pathogenic bacteria were frequently detected in samples from rural households.
• Conventional retail chicken parts demonstrated superior bacterial quality compared to free-grazing options.

Conclusions:

• Poor hygienic conditions during slaughter in rural households contribute to high microbial loads in free-grazing broiler carcasses.
• Conventional broiler meat production, as sampled, appears to offer better bacterial safety and quality than free-grazing alternatives.
• Further improvements in slaughter hygiene are recommended for free-grazing poultry production to meet food safety standards.