Ovine Paratuberculosis: A Seroprevalence Study in Dairy Flocks Reared in the Marche Region, Italy
2011

Study on Ovine Paratuberculosis in Dairy Flocks in Italy

Sample size: 2086 publication 10 minutes Evidence: moderate

Author Information

Author(s): Anna Rita Attili, Victor Ngu Ngwa, Silvia Preziuso, Luciana Pacifici, Anastasia Domesi, Vincenzo Cuteri

Primary Institution: School of Veterinary Medical Sciences, University of Camerino

Hypothesis

What is the seroprevalence of Mycobacterium avium subsp. paratuberculosis infection in ovine dairy farms of the Marche region, Italy?

Conclusion

The study found a 6.29% seroprevalence of MAP infection in sampled sheep, with 73.7% of flocks being infected.

Supporting Evidence

  • 73.7% of the flocks tested were found to be infected with MAP.
  • The mean seroprevalence among sampled sheep was 6.29%.
  • 12.6% of infected farms confirmed MAP infection through faecal culture.
  • Significant differences in seroprevalence were observed based on herd size and lactation stage.
  • The true prevalence of MAP infection was estimated to be 15.1% ± 7.3%.

Takeaway

The study looked at sheep in Italy to see how many had a certain germ that can make them sick, and found that about 6 out of every 100 sheep were infected.

Methodology

A stratified study was conducted on 2086 adult female sheep from 38 herds, using a commercial ELISA test to determine seroprevalence.

Potential Biases

Potential bias in herd selection and self-reported data from farmers.

Limitations

The study was limited to two provinces in the Marche region and may not represent the entire ovine population in Italy.

Participant Demographics

The study included adult female sheep from various breeds in dairy and mixed production herds.

Statistical Information

P-Value

0.0269

Confidence Interval

15.1% ± 7.3%

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.4061/2011/782875

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