Liha töötlemine
carrying higher microbial loads than minutes, upon arrival at the abattoir, with
46 Chapter 3
potable water (19°C) did not reduce the have shown that E. coli O157:H7 serotypes
number of bacteria, but reduced the incidence present on animal hides matched those on the
of Salmonella on the neck, belly, and ham feedlot and transportation trailers (Childs
areas of live animals, from 27% (before et al. 2006; Woerner et al. 2006). Thus,
washing) to 10% (Bolton et al. 2002), and ensuring hygienic transportation and han-
caused 3 log10 CFU/cm2 reductions of artifi- dling of animals prior to slaughtering, fol-
cially inoculated E. coli O157:H7 (Byrne et lowed by hygienic slaughtering practices, are
al. 2000). likely more essential than simply improving
U.S. regulatory guidelines require cattle to the presentation status of animals (Duffy
annaabi.ee 
