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Table 2 Detection of Salmonella Typhimurium in artificially contaminated animal feeds by the NMKL71 (RVS), MSRV and EN ISO 6579:2002 methods (RVS + MKTTn).

From: A comparative study of cultural methods for the detection of Salmonellain feed and feed ingredients

Feed type Selective medium cfu/25 g of Salmonella Typhimurium
   0 0–1 1–10 10-102 102–103 103–104
Pellets of pig feed RVS 0/5 0/5 0/5 5/5 5/5 -*
  MSRV 0/5 0/5 0/5 5/5 5/5 -
  MKTTn 0/5 0/5 0/5 5/5 5/5 -
Soybean meal RVS 0/5 0/5 5/5 5/5 5/5 -
  MSRV 0/5 0/5 5/5 5/5 5/5 -
  MKTTn 0/5 0/5 5/5 5/5 5/5 -
Palm kernel meal RVS 0/5 - 0/5 0/5 5/5 5/5
  MSRV 0/5 - 0/5 0/5 5/5 5/5
  MKTTn 0/5 - 0/5 0/5 5/5 5/5
Rape seed meal RVS 0/5 0/5 5/5 5/5 5/5 -
  MSRV 0/5 0/5 5/5 5/5 5/5 -
  MKTTn 0/5 0/5 5/5d 5/5d 5/5 -
Wheat grain RVS 0/5 0/5 5/5 5/5 5/5 -
  MSRV 0/5 0/5 5/5 5/5 5/5 -
  MKTTn 0/5 0/5 5/5 5/5c 5/5b -
Scrapings from feed mill RVS 0/5 0/5 0/5 5/5 5/5a -
  MSRV 0/5 0/5 0/5 5/5 5/5 -
  MKTTn 0/5 0/5 0/5 5/5d 5/5d -
  1. * Not tested.
  2. a = One negative BGA plate.
  3. b = Two negative BGA plates.
  4. c = Three negative BGA plates.
  5. d = Five negative BGA plates.