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Contamination Revealed by Indicator Microorganism Levels during Veal Processing.

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Veal processing contamination decreased with improved dressing procedures but not with carcass interventions. Bob veal showed higher contamination than formula-fed veal, indicating ongoing challenges in veal safety.

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Area of Science:

  • Food Safety
  • Microbiology
  • Animal Science

Background:

  • U.S. Department of Agriculture, Food Safety Inspection Service (FSIS) identified processing deficiencies in veal production.
  • These deficiencies likely contribute to increased levels of veal contamination.
  • Previous assessments highlighted the need for improved sanitary practices in veal processing.

Purpose of the Study:

  • To measure microbial contamination levels (aerobic plate count bacteria, Enterobacteriaceae, coliforms, Escherichia coli) in veal.
  • To assess contamination before and after implementing changes to interventions and processing practices.
  • To compare contamination levels between bob veal and formula-fed veal.

Main Methods:

  • Conducted eight sample collections at five veal processing plants.
  • Measured microbial loads on veal hides and pre- and post-intervention carcasses.
  • Analyzed data from plants before (n=5) and after (n=3) practice modifications.

Main Results:

  • Improved sanitary dressing procedures led to cleaner carcasses.
  • Changes to carcass-directed interventions were less effective in reducing contamination.
  • Bob veal exhibited significantly higher microbial loads on hides and carcasses compared to formula-fed veal.

Conclusions:

  • While dressing procedure improvements enhanced veal cleanliness, carcass interventions require further optimization for consistent antimicrobial delivery.
  • Veal processors should adopt techniques ensuring uniform antimicrobial application to carcasses.
  • Persistent contamination challenges necessitate continued vigilance and improvement in veal processing safety protocols.