Skip to main content
Log in

Levels of microbial contamination of swine carcasses along the slaughtering process line

  • Research Article
  • Published:
Journal of Consumer Protection and Food Safety Aims and scope Submit manuscript

Abstract

The aim of the present study was to evaluate the microbial contamination of domestic swine carcasses over an 8-year period in a slaughterhouse located in the Marche region, Central Italy. The hygiene of the slaughter process was assessed by microbiological criteria involving aerobic colony count (ACC), Enterobacteriaceae and Salmonella spp. [Regulation (EC) No 2073/2005 and amendments]. Five carcasses were tested during five sampling sessions each year (four different sites from each carcass were pooled before the analysis) for a total of 200 samples. The results of the study showed low levels of ACC and Enterobacteriaceae and the absence of Salmonella spp., except for one sample. The values of ACC were consistently satisfactory (< 3.3 Log CFU/cm2), whereas Enterobacteriaceae counts were satisfactory for 32.5% (< 1.3 Log CFU/cm2) and acceptable for 67.5% (with values between 1.3 and 2.3 Log CFU/cm2) of the examined samples. The low microbial counts detected on the carcasses reflected the initial visual examination of animal “cleanliness” [Regulation (EC) No 853/2004] as well as the hygiene conditions of the slaughtering process. These results suggest that the management of this specific slaughterhouse apply good hygiene practices to ensure high quality animal carcasses.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2

Similar content being viewed by others

References

  • Biasino W, De Zutter L, Mattheus W, Bertrand S, Uyttendaele M, Van Damme I (2018) Correlation between slaughter practices and the distribution of Salmonella and hygiene indicator bacteria on pig carcasses during slaughter. Food Microbiol 70:192–199

    Article  CAS  Google Scholar 

  • Corbellini LG, Júnior AB, de Freitas Costa E, Duarte AS, Albuquerque ER, Kich JD, Cardoso M, Nauta M (2016) Effect of slaughterhouse and day of sample on the probability of a pig carcass being Salmonella-positive according to the Enterobacteriaceae count in the largest Brazilian pork production region. Int J Food Microbiol 228:58–66

    Article  Google Scholar 

  • EFSA (2008) Report of the task force on zoonoses data collection on the analysis of the baseline survey on the prevalence of Salmonella in slaughter pigs, Part A. EFSA J 135:1–111

    Google Scholar 

  • EFSA (2011) Scientific Opinion on the public health hazards to be covered by inspection of meat (swine). EFSA J 9(10):1–198

    Google Scholar 

  • FSA (Food Standards Agency) (2004). Clean beef cattle for slaughter. A guide for producers. Food Standards Agency, Crown Copyright, England, 5 k FSA/0951/1104

  • Intesa Rep. Atti n. 41/CSR del 3 marzo (2016) Intesa, ai sensi dell’articolo 8, comma 6, della legge 5 giugno 2003, n. 131, tra il Governo, le Regioni e le Province autonome di Trento e di Bolzano sul documento concernente “Linee Guida relative all’applicazione del Regolamento (CE) N. 2073/2005 e successive modifiche ed integrazioni sui criteri microbiologici applicabili agli alimenti”, pp 1–41

  • ISO 17604:2003 (2003) Microbiology of food and animal feeding stuffs—Carcass sampling for microbiological analysis. International Organization for Standardization, Geneva

    Google Scholar 

  • ISO 21528–2:2004 (2004) Microbiology of food and animal feeding stuffs—Horizontal methods for the detection and enumeration of Enterobacteriaceae—Part 2: Colony-count method. International Organization for Standardization, Geneva

    Google Scholar 

  • ISO 4833:2003 (2003) Microbiology of food and animal feeding stuffs—Horizontal method for the enumeration of microorganisms—colony-count technique at 30 °C. International Organization for Standardization, Geneva

    Google Scholar 

  • ISO 6579:2002 (2002) Microbiology of food and animal feeding stuffs—Horizontal method for the detection of Salmonella spp. International Organization for Standardization, Geneva

    Google Scholar 

  • Martínez-Avilés M, Garrido-Estepa M, Álvarez J, de la Torre A (2019) Salmonella surveillance systems in swine and humans in Spain: a review. Vet Sci 6(20):1–16

    Google Scholar 

  • Milios KT, Drosinos EH, Zoiopoulos PE (2014) Food safety management system validation and verification in meat industry: carcass sampling methods for microbiological hygiene criteria—a review. Food Control 43:74–81

    Article  Google Scholar 

  • Paolazzi G, Rabini M, Borghi M, Oberkalmsteiner E, Pontalti S, Vedovato L, Lombardo D (2018) Autocontrollo nei macelli in provincia di Bolzano nel biennio 2016-2017: applicazione del Regolamento CE No 2073/2005. Atti XXVIII Convegno Nazionale A.I.V.I. (Associazione Italiana Veterinari Igienisti). Milano 12–14 settembre 2018, P013, pp 29–30

  • Pesciaroli M, Cucco L, De Luca S, Massacci FR, Maresca C, Medici L, Paniccià M, Scoccia E, Staffolani M, Pezzotti G, Magistrali CF (2017) Association between pigs with high caecal Salmonella loads and carcass contamination. Int J Food Microbiol 242:82–86

    Article  CAS  Google Scholar 

  • Petruzzelli A, Osimani A, Pasquini M, Clementi F, Vetrano V, Paolini F, Foglini M, Micci E, Paoloni A, Tonucci F (2016) Trends in the microbial contamination of bovine, ovine and swine carcasses in three small-scale abattoirs in central Italy: a four-year monitoring. Food Microbiol 111:53–59

    Google Scholar 

  • Piras F, Fois F, Mazza R, Putzolu M, Delogu ML, Lochi PG, Rani SP, Mazzette R (2014) Salmonella prevalence and microbiological contamination of pig carcasses and slaughterhouse environment. Ital J Food Saf 3(4581):210–213

    Google Scholar 

  • Swart AN, Evers EG, Simons RL, Swanenburg M (2016) Modeling of Salmonella contamination in the pig slaughterhouse. Risk Anal 36:498–515

    Article  CAS  Google Scholar 

  • Van Ba H, Seo HW, Seong PN, Kang SM, Cho SH, Kim YS, Park BY, Moon SS, Kang SJ, Choi YM, Kim JH (2019) The fates of microbial populations on pig carcasses during slaughtering process, on retail cuts after slaughter, and intervention efficiency of lactic acid spraying. Int J Food Microbiol 294:10–17

    Article  CAS  Google Scholar 

  • Van Damme I, Mattheus W, Bertrand S, De Zutter L (2018) Quantification of hygiene indicators and Salmonella in the tonsils, oral cavity and rectal content samples of pigs during slaughter. Food Microbiol 71:120–128

    Article  Google Scholar 

  • Wheatley P, Giotis ES, McKevitt AI (2014) Effect of slaughtering operations on carcass contamination in an Irish pork production plant. Irish Vet J 67(1):1–6

    Article  Google Scholar 

  • Zdolec N, Dobranic V, Filipovic I (2015) Prevalence of Salmonella spp. and Yersinia enterocolitica in/on tonsils and mandibular lymph nodes of slaughtered pigs. Folia Microbiol 60:131–135

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Maria Schirone.

Ethics declarations

Conflict of interest

The authors declare they have no conflict of interest.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Visciano, P., Schirone, M., Olivastri, A.M.A. et al. Levels of microbial contamination of swine carcasses along the slaughtering process line. J Consum Prot Food Saf 15, 271–276 (2020). https://doi.org/10.1007/s00003-020-01276-z

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00003-020-01276-z

Keywords

Navigation