Affordable Access

A longitudinal study of Salmonella enterica infections in high-and low-seroprevalence finishing swine herds in The Netherlands.

Authors
  • van der Wolf, P J
  • Lo Fo Wong, D M
  • Wolbers, W B
  • Elbers, A R
  • van der Heijden, H M
  • van Schie, F W
  • Hunneman, W A
  • Willeberg, P
  • Tielen, M J
Type
Published Article
Journal
The Veterinary quarterly
Publication Date
Jul 01, 2001
Volume
23
Issue
3
Pages
116–121
Identifiers
PMID: 11513252
Source
Medline
License
Unknown

Abstract

The purpose of this investigation was to study the incidence and course of Salmonella infections in finishing pig herds in order to asses the stability of a given Salmonella herd status. Five low- and 7 high-seroprevalence herds were followed for seven sampling rounds. Each round, blood and faecal samples were tested in an indirect ELISA and by bacteriological culturing, respectively. In high-seroprevalence herds a positive Salmonella status was an indication of a long-term problem and the status was relatively stable over time. The herds experiencing clinical salmonellosis were not necessarily the herds with the highest seroprevalence. It is possible to deliver sero-negative finishers to the slaughterhouse, even though these pigs were seropositive as growers. In three out of five low-prevalence herds, major infection incidents occurred, indicating that changes in the Salmonella status should be anticipated. Low-prevalence herds can remain negative over a longer period of time as a result feeding a complete liquid feed containing fermented by-products.

Report this publication

Statistics

Seen <100 times