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SafeGuard. Work package 2.2B Coordinated approaches for sampling schedules, monitoring strategies and diagnostics methods
Project
Project code: keine Angabe
Contract period: 01.01.2008
- 31.12.2013
Purpose of research: Networks and research co-ordination
The focus of this WP was on standardizing the sampling of fattening
pigs. While a large number of fattening pigs cross the Dutch-German
border every day in order to be further fattened in German operations, a
special potential infection and disease risk is inherent in these transports.
The most important infectious agents for the pig trade are salmonella,
PRRS-V, PCV2, Rhinitis atrophicans, Brachyspira hyodysenteriae and Lawsonia
intracellularis. In addition, mycoplasmas, Actinobacillus pleuropneumoniae and
Haemophilus parasuis play a major role.
Detailed sampling schedules were developed for sampling in the operations
– with regard to sampling frequency, e.g., pig breeders receive the
recommendation to randomly sample their sale piglets when they are about
ten weeks old. According to statistical calculations by Canon and Roe, 15
individual samples each are required for a security of 95% with a prevalence
of at least 20%. Consequently, 15 samples twice a year is considered the
minimum sampling frequency. In the field, more frequent sampling with
potentially lower sample figures have been proven; e.g., ten samples, three times
a year. On this basis, any lower numbers of samples will not be conclusive.
Section overview
Subjects
- Animal health
- Communication Sciences
