Publication Date

January 2001

Abstract

This study was designed to determine if rapid Salmonella infection is possible during the pre-slaughter holding period at swine abattoirs. For 24 groups of pigs studied in 2 high capacity abattoirs, pooled fecal samples were collected from the transport trailer right after pigs were unloaded (pre-holding samples). Holding pens were sampled prior to the entry of study pigs for the pre-slaughter holding. After slaughter, cecal contents and ileocecal lymph nodes were collected from 30 pigs in each studied group (post-holding samples). From all holding pens sampled (100%) at least one Salmonella serovar was isolated. All groups of pigs were Sa/monel/a-positive in the post-holding sampling, including those groups Salmonella-negative in the pre-holding sampling. Some groups had Salmonella serovars that matched serovars isolated from the holding pens, but not with serovars isolated from the pre-holding samples. Results indicate that the abattoir holding pens constitute an important source of Salmonella infections for swine.

Book Title

Proceedings of the 4th International Symposium on the Epidemiology and Control of Salmonella and other Food Borne Pathogens in Pork

Pages

298-300

Language

en

File Format

application/pdf

 
Jan 1st, 12:00 AM

Abattoir holding pens as a source of Salmonella for swine.

Leipzig, Germany

This study was designed to determine if rapid Salmonella infection is possible during the pre-slaughter holding period at swine abattoirs. For 24 groups of pigs studied in 2 high capacity abattoirs, pooled fecal samples were collected from the transport trailer right after pigs were unloaded (pre-holding samples). Holding pens were sampled prior to the entry of study pigs for the pre-slaughter holding. After slaughter, cecal contents and ileocecal lymph nodes were collected from 30 pigs in each studied group (post-holding samples). From all holding pens sampled (100%) at least one Salmonella serovar was isolated. All groups of pigs were Sa/monel/a-positive in the post-holding sampling, including those groups Salmonella-negative in the pre-holding sampling. Some groups had Salmonella serovars that matched serovars isolated from the holding pens, but not with serovars isolated from the pre-holding samples. Results indicate that the abattoir holding pens constitute an important source of Salmonella infections for swine.