Abstract

The Swedish Salmonella control programme includes mandatory action if Salmonella is detected in a herd. The aim of this study was to assess the relative value of different strategies for pre-movement testing of cattle.Three fictitious herds were included: dairy, beef and specialised calf-fattening. The yearly risks of introducing Salmonella with and without individual serological or bulk milk testing were assessed as well as the effects of sourcing animals from low-prevalence areas or reducing the number of source herds.The initial risk was highest for the calf-fattening herd and lowest for the beef herd. For the beef and dairy herds, the yearly risk of Salmonella introduction was reduced by about 75% with individual testing. Sourcing animals from low-prevalence areas reduced the risk by > 99%. For the calf-fattening herd, the yearly risk was reduced by almost 50% by individual testing or sourcing animals from a maximum of five herds.The method was useful for illustrating effects of risk mitigation when introducing animals into a herd. Sourcing animals from low-risk areas (or herds) is more effective than single testing of individual animals or bulk milk. A comprehensive approach to reduce the risk of introducing Salmonella from source herds is justified. (C) 2017 Elsevier Ltd. All rights reserved.

Keywords

Salmonella; Pre-movement testing; Risk assessment; Model; Risk mitigation

Published in

Food Microbiology
2018, Volume: 71, pages: 68-72

SLU Authors

• Sternberg Lewerin, Susanna

  • Department of Animal Biosciences, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Other Veterinary Science


Publication identifier

DOI: https://doi.org/10.1016/j.fm.2017.01.008

Permanent link to this page (URI)

https://res.slu.se/id/publ/79698