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Bacteria on Beef Briskets and Ground Beef: Correlation with Slaughter Volume and Antemortem Condemnation
Allan T Hogue1, David W Dreesen1, Stanley S Green1
1Food Safety and Inspection Service, Science and Technology, Slaughter Inspection Standards and Procedures Division, U.S. Department of Agriculture, Washington, DC 20250.
Abstract:
Aerobic plate counts of 3,455 brisket and 1,370 ground beef samples were examined for association with slaughter volume in 547 U.S. beef slaughter establishments. In general, high-volume beef slaughter establishments control total aerobic bacteria counts on briskets and ground beef more effectively than small volume establishments. The lower Aerobic plate counts at high slaughter volumes may have resulted from uniformity of cattle slaughtered, specialization of labor, measures taken to prevent contamination, and effective decontamination of carcasses in high-volume slaughter establishments. In this study the prevalence of Salmonella contamination was found to be more closely associated with the health of animals brought to slaughter than with certain conditions in the slaughter establishments. The prevalence of contamination of brisket and ground beef samples with Salmonella was highest in calf slaughter establishments. Salmonella contamination on brisket samples increased as antemortem condemnation increased in establishments that slaughter calves. No association was found between Salmonella contamination and slaughter volume.
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