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<p>Mobile slaughter is increasingly used to improve animal welfare by reducing transport stress, but concerns remain about microbiological contamination due to delayed evisceration. This study assessed internal abdominal cavity surfaces of 58 cattle carcasses under routine mobile slaughter conditions in Germany by swabbing and analyzing total viable count (TVC) and the presence of <i>Escherichia (E.) coli</i>. Of 99 swabs, 46.5% exceeded the limit of quantification with a mean TVC of 2.42 log<sub>10</sub> CFU/100 cm<sup>2</sup>, while <i>E. coli</i> was detected in only a single non-quantifiable case. No significant correlation was identified between the bacterial load and the bleeding-to-sampling interval (<i>p</i> = 0.76), which predominantly ranged up to 2 h. These results indicate that delayed evisceration within this timeframe does not increase microbiological contamination of internal carcass surfaces. The findings support the hygienic safety of mobile slaughter practices under the conditions studied and provide data to inform regulatory guidelines regarding evisceration timing.</p>

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Microbiological status on internal carcass surfaces of mobile slaughtered cattle in Germany

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年4月26日

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  • Amina Barhoum,
  • Ahmad Hamedy,
  • Stefanie Heetjans,
  • Carolin Käppler,
  • Lydia Engel,
  • Martin Koethe,
  • Philipp Rolzhäuser

摘要

Mobile slaughter is increasingly used to improve animal welfare by reducing transport stress, but concerns remain about microbiological contamination due to delayed evisceration. This study assessed internal abdominal cavity surfaces of 58 cattle carcasses under routine mobile slaughter conditions in Germany by swabbing and analyzing total viable count (TVC) and the presence of Escherichia (E.) coli. Of 99 swabs, 46.5% exceeded the limit of quantification with a mean TVC of 2.42 log10 CFU/100 cm2, while E. coli was detected in only a single non-quantifiable case. No significant correlation was identified between the bacterial load and the bleeding-to-sampling interval (p = 0.76), which predominantly ranged up to 2 h. These results indicate that delayed evisceration within this timeframe does not increase microbiological contamination of internal carcass surfaces. The findings support the hygienic safety of mobile slaughter practices under the conditions studied and provide data to inform regulatory guidelines regarding evisceration timing.