Liha töötlemine
coli O157:H7 an
tract through accidental spillage of its con- “adulterant” in ground beef and other nonin-
tents during evisceration, and lymph nodes if tact beef products and has issued a zero-
inspected by incision or otherwise cut. tolerance policy that requires removal of all
Furthermore, contact with other carcasses, visible contamination, including feces,
employees, as well as the processing envi- ingesta, and udder contents, from beef
ronment (e.g., equipment, water, or air) may carcasses by knife-trimming or steam-
also contribute to carcass and meat contami- vacuuming prior to washing and chilling
nation (Sofos 1994, 2002; Sofos et al. 1999a, (Kochevar et al. 1997a; Bacon et al. 2000).
b, c; Elder et al. 2000; Childs et al. 2006). Furthermore, FSIS has changed the meat and
Although multiple species of microorgan- poultry inspection regulations to require: (i)