Salmonella contamination risk points in broiler carcasses during slaughter line processing

Area of Science:

• Food Safety
• Microbiology
• Public Health

Background:

• Salmonella is a primary foodborne pathogen linked to poultry.
• Poultry processing plants require rigorous contamination control measures.

Purpose of the Study:

• Identify critical Salmonella contamination points in a Costa Rican chicken processing plant.
• Analyze the risk of salmonellosis from contaminated poultry consumption.

Main Methods:

• Qualitative and quantitative Salmonella testing (CFU counts) on carcasses.
• Risk analysis based on contamination prevalence and consumption data.

Main Results:

• Salmonella detected in 26% of carcasses; 60% of flocks positive.
• Highest Salmonella counts post-bleeding (6.1 log CFU/carcass).
• Evisceration and spray washing increased contamination (10-40%) and counts (3.9-5.1 log CFU/carcass).

Conclusions:

• Evisceration and spray washing are key risk points for Salmonella cross-contamination.
• An estimated 272 annual salmonellosis cases result from contaminated chicken consumption.
• Targeted interventions during evisceration and washing are crucial for reducing risk.