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.
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Northcutt et al. (2003) studied this question.
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