Impact of the Salmonella status of market-age pigs and the pre-slaughter process on Salmonella caecal contamination at slaughter Pierre-Alexandre Belœil, Claire Chauvin, Karine Proux, François Madec, Philippe Fravalo and Ahmadou Alioum Vet. Res., 35 5 (2004) 513-530 DOI: 10.1051/vetres:2004028