title: Prevention of Salmonella contamination of finished soybean meal used for animal feed by a Norwegian production plant despite frequent Salmonella contamination of raw soy beans, 1994-2012.
abstract: BACKGROUND
  Salmonella contaminated animal feed is a major source for introducing Salmonella into the animal derived food chain. Because soybeans frequently are contaminated with Salmonella, soybean meal used as animal feed material, a by-product of a "crushing plant" which produces oil from soybeans, can be important source of Salmonella in the animal feed.
  
  
  RESULTS
  During the 19-year period, 34% of samples collected during unloading of ships delivering soybeans yielded Salmonella; the proportion of samples from ships that yielded Salmonella varied from 12-62% each year. Dust samples from all shiploads from South America yielded Salmonella. In total 94 serovars of Salmonella were isolated, including nine (90%) of the EU 2012 top ten serovars isolated from clinical cases of salmonellosis in humans, including major animal pathogenic serovars like Spp. Typhimurium and Enteritidis.
  
  
  CONCLUSIONS
  This study shows that a HAACP-based control program in a soybean crushing plant can produce Salmonella free soybean meal despite frequent Salmonella contamination of raw soybeans. That approach is suggested as an effective way to minimize the risk of Salmonella exposure of the animal feed mills and contamination of the subsequent animal feed chain.
authors.forename: Martin
authors.initials: M
authors.lastname: Wierup
authors.forename: Thor
authors.initials: T
authors.lastname: Kristoffersen
mesh_terms: D000821:Animal Feed / Q000382:microbiology*; D000818:Animals; D005506:Food Contamination / Q000517:prevention & control*; D005516:Food Microbiology; D009664:Norway; D012475:Salmonella / Q000302:isolation & purification* / Q000502:physiology; D012481:Salmonella Infections, Animal / Q000382:microbiology / Q000517:prevention & control*; D013025:Glycine max / Q000382:microbiology*