The aim of this survey was to obtain data on microbiological contamination of pig carcasses and environments in three large-scale Italian slaughterhouses (identified as A-B-C) located in Northern Italy. Each slaughterhouse was visited six times. Five carcasses and three different sites of the slaughterhouse (before and during slaughter) were sampled on each sampling day. A single pooled caecal sample was taken on each sampling day. A total of 90 carcasses, 108 environmental samples and 18 caecal samples were collected. Samples from pig carcasses and slaughterhouse environment were analyzed for Total Viable Count (TVC), Enterobacteriaceae count (EBC) and Salmonella. The caecal contents were examined for Salmonella. Carcasses from slaughterhouse A presented the greatest TVC and EBC mean log value, whereas environmental samples collected during slaughter activities from slaughterhouse C showed the greatest TVC and EBC mean log value. As far as the environmental samples collected before slaughter activities are concerned, an average up to 6 log10 CFU/cm2 TVC in two slaughter plants (A and C) and 5 log10 CFU/cm2 TVC in one slaughter plant (B) was detected. Salmonella was recovered in two slaughterhouses (A and B). Four different Salmonella serotypes were detected in the positive samples (11). Within serotype S. Rissen and S. Typhimurium monophasic-variant isolates, two PFGE patterns were identified. The findings in this survey suggest that carcass contamination is influenced by the slaughterhouse plant and this could be a result of differences in line speed. The results of environmental sampling have not shown an association with the slaughterhouse plant.

Microbiological contamination in three large-scale pig slaughterhouses in Northern Italy / P.A. DI CICCIO, M.C. Ossiprandi, E. Zanardi, S. Ghidini, G. Belluzzi, A. Vergara, A. Ianieri. - In: ITALIAN JOURNAL OF FOOD SAFETY. - ISSN 2239-7132. - 5:4(2016), pp. 6151.1-6151.5. [10.4081/ijfs.2016.6151]

Microbiological contamination in three large-scale pig slaughterhouses in Northern Italy

S. Ghidini;
2016

Abstract

The aim of this survey was to obtain data on microbiological contamination of pig carcasses and environments in three large-scale Italian slaughterhouses (identified as A-B-C) located in Northern Italy. Each slaughterhouse was visited six times. Five carcasses and three different sites of the slaughterhouse (before and during slaughter) were sampled on each sampling day. A single pooled caecal sample was taken on each sampling day. A total of 90 carcasses, 108 environmental samples and 18 caecal samples were collected. Samples from pig carcasses and slaughterhouse environment were analyzed for Total Viable Count (TVC), Enterobacteriaceae count (EBC) and Salmonella. The caecal contents were examined for Salmonella. Carcasses from slaughterhouse A presented the greatest TVC and EBC mean log value, whereas environmental samples collected during slaughter activities from slaughterhouse C showed the greatest TVC and EBC mean log value. As far as the environmental samples collected before slaughter activities are concerned, an average up to 6 log10 CFU/cm2 TVC in two slaughter plants (A and C) and 5 log10 CFU/cm2 TVC in one slaughter plant (B) was detected. Salmonella was recovered in two slaughterhouses (A and B). Four different Salmonella serotypes were detected in the positive samples (11). Within serotype S. Rissen and S. Typhimurium monophasic-variant isolates, two PFGE patterns were identified. The findings in this survey suggest that carcass contamination is influenced by the slaughterhouse plant and this could be a result of differences in line speed. The results of environmental sampling have not shown an association with the slaughterhouse plant.
Enterobacteriaceae; Pig carcass; Pig slaughterhouse; Salmonella; Total viable count; Food Science
Settore VET/04 - Ispezione degli Alimenti di Origine Animale
2016
http://pagepressjournals.org/index.php/ijfs/article/download/6151/6058
Article (author)
File in questo prodotto:
File Dimensione Formato  
Italian Journal of Food Safety.pdf

accesso aperto

Descrizione: Original Article
Tipologia: Publisher's version/PDF
Dimensione 542.66 kB
Formato Adobe PDF
542.66 kB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/1028088
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 8
  • ???jsp.display-item.citation.isi??? 8
social impact