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

Table 2 Results of Salmonella control at Denofa crushing plant during 2000-2012

	Year													Mean (M)/Total (T)
	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011	2012
Total annual number of Salmonella positive samples	155	178	81	119	249	147	159	121	144	120	78	79	73	M: 127
Total number of serovars isolated annually	21	26	19	23	20	22	25	23	28	24	16	12	16	M: 21
Indoor environment/“clean zone” - % Salmonella positive samples	0	0	0	1	6	11	1	0	2	0	3	1	3	M: 2
Number of stop in delivery of soybean meal to ensure freedom of Salmonella	0	0	0	0	0	2	0	0	0	0	0	0	0	T: 2
End product - % Salmonella positive samples	0	0	0	0	0	0	0	0	0	0	0	0	0	T: 0

ISSN: 1751-0147