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Contamination of Beef Carcasses during Hide Removal and use of a Test Bacterial Decontamination System on Beef Hide
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Date
2000-12
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Report 25.pdf
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Contamination of Beef Carcasses during Hide Removal and use of a Test Bacterial Decontamination System on Beef Hide. The National Food Centre Research Report No. 25. John M. McEvoy et al. Dublin; Teagasc, 2000. ISBN 1841701599
Abstract
In Ireland, the Abattoirs Act, 1988 (Veterinary Examination) (Amendment), 1998 (S.I. No. 6, 1998) empowers the ante mortem veterinary inspector to
reject animals for slaughter or require slaughter under special conditions, based on the level of visible hide contamination. Special conditions for
slaughter include reduced line speed, increased space between animals and increased use of workstation hygiene facilities. Since their introduction in Ireland, cattle regulations have become more stringent and at present, both
category 4 and 5 animals are rejected. However, a procedure for shaving accumulated hardened faeces (faecal clods) from category 4 and 5 animals has
been introduced into most abattoirs, enabling them to reach the cleanliness standard. The potential risk of pathogens surviving in faecal clods on the hide of animals at slaughter is not known.
This study examined:
1. The relationship between livestock cleanliness categories and the amount of contamination on the resultant carcasses.
2. The difference in bacterial contamination on carcasses from category 4 animals dressed without increased use of workstation hygiene facilities
and those dressed with increased use of hygiene facilities.
3. The survival of E. coli O157:H7 in faecal clods