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Table 4 Number of salmonella positive samples from environmental weekly surveillance of the production line - after heat treatment of feed mills of A and B using largely the same feed ingredients

From: An assessment of soybeans and other vegetable proteins as source of salmonella contamination in pig production

Year/feed producing company Number of salmonella positive samples collected after heat treatment Total
  2000 2001 2002 2003 2004 2005  
A 7 1 2 7 0 1 18
B 0 0 0 0 0 0 0