The new classification system for slaughter-pig herds in the Danish Salmonella surveillance-and-control program

L. Alban, Helle Stege, J. Dahl

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The Danish surveillance-and-control program for Salmonella in slaughter pigs was introduced in 1995. The key element of the program is a quick and correct identification of herds with high seroprevalence. After 5 years, the classification scheme was evaluated-and a revision was made. Data from two Salmonella screenings including a total of 1902 slaughter pig herds were used. For each herd, information was available on Salmonella status based on both microbiology and serology. Based on analyses of these data, suitable changes in the scheme were identified and their effect estimated by use of data from the Danish Salmonella Database including all herds in 2000. The classification scheme has been adjusted on the following points. (1) The sampling has been simplified into 60, 75, or 100 samples per herd per year depending on herd size. This means more-precise estimates for the seroprevalence among smaller herds. (2) Herds with an annual kill
Original languageEnglish
JournalPreventive Veterinary Medicine
Volume53
Issue number1-2
Pages (from-to)133-146
ISSN0167-5877
DOIs
Publication statusPublished - 2002

Keywords

  • sample size
  • detection level
  • herd classification
  • Salmonella enterica
  • control program
  • pig

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