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Effect of Commercial Bird Washers on Broiler Carcass Microbiological Characteristics

USDA Agricultural Research Service, Russell Research Center, P. O. Box 5677, Athens, Georgia 30604-5677

Correspondence: J. K. Northcutt, E-mail: jnorthcutt{at}saa.ars.usda.gov

A study was conducted to determine the effects of commercial bird washers on broiler carcass microbiological characteristics. Broiler carcasses were removed from the processing line in 3 different commercial facilities immediately before and after the inside-outside bird washer (IOBW). Whole carcass rinses were analyzed for coliforms, Escherichia coli, and total aerobic bacteria. Coliform, E. coli, and total aerobic bacteria counts on carcasses varied among the processing plants evaluated (P < 0.05); however, no difference was found for carcass coliform or E. coli counts due to washing in the IOBW. Total aerobic bacteria decreased significantly on carcasses from plant 3 (4.4 log₁₀ versus 3.8 log₁₀) after washing in the IOBW, but this trend did not occur at all of the plants evaluated. These data show that use of the IOBW may not significantly reduce carcass coliform or E. coli counts.

Key Words: broiler • carcass contamination • bird washer

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