Equine veterinary journal · 2024
Farm size and biosecurity measures associated with Strongylus vulgaris infection in horses.
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Hedberg Alm Ylva, Tydén Eva, Martin Frida, Lernå Jessica, Halvarsson Peter
Аннотация
BACKGROUND: Selective anthelmintic treatment, advocated due to evolving anthelmintic resistance, has been associated with an increase in Strongylus vulgaris prevalence. Reverting to routine interval anthelmintic treatments is not viable and therefore, identifying other management factors correlated with S. vulgaris infection is vital.
OBJECTIVES: To investigate possible risk factors associated with the presence of S. vulgaris infection in resident horses on Swedish horse establishments.
STUDY DESIGN: Internet-based questionnaire survey.
METHODS: A questionnaire, created using the internet-based survey platform Netigate, was distributed to owners of equine establishments throughout Sweden via established equine platforms and social media channels. The survey was available for response from 21 May until 1 September 2022. Questions were closed ended with branching logic paths.
RESULTS: Four factors were significantly associated with S. vulgaris infection, with an increased odds of infection seen in livery yards (odds ratio [OR] 1.67, 95% confidence interval [CI] 1.18-2.36, p = 0.004) and premises with more than 10 resident horses (OR 2.42, 95% CI 1.64-3.56, p < 0.001). A lower odds of infection were seen in establishments using quarantine routines (OR 0.69, 95% CI 0.50-0.96, p = 0.03) and anthelmintic treatment of new horses prior to arrival at the premise (OR 0.37, 95% CI 0.18-0.74, p = 0.005).
MAIN LIMITATION: Due to the presence of S. vulgaris infection in the present study being based on S. vulgaris diagnostics performed at the farm level, any association between faecal diagnostic use and risk of infection could not be investigated.
CONCLUSIONS: Although the use of diagnostics for S. vulgaris can keep infection rates low, large farms or livery yards with many different horse owners, and those with low use of biosecurity measures as regards to new horses arriving at the premise, are associated with a higher risk of infection.
OBJECTIVES: To investigate possible risk factors associated with the presence of S. vulgaris infection in resident horses on Swedish horse establishments.
STUDY DESIGN: Internet-based questionnaire survey.
METHODS: A questionnaire, created using the internet-based survey platform Netigate, was distributed to owners of equine establishments throughout Sweden via established equine platforms and social media channels. The survey was available for response from 21 May until 1 September 2022. Questions were closed ended with branching logic paths.
RESULTS: Four factors were significantly associated with S. vulgaris infection, with an increased odds of infection seen in livery yards (odds ratio [OR] 1.67, 95% confidence interval [CI] 1.18-2.36, p = 0.004) and premises with more than 10 resident horses (OR 2.42, 95% CI 1.64-3.56, p < 0.001). A lower odds of infection were seen in establishments using quarantine routines (OR 0.69, 95% CI 0.50-0.96, p = 0.03) and anthelmintic treatment of new horses prior to arrival at the premise (OR 0.37, 95% CI 0.18-0.74, p = 0.005).
MAIN LIMITATION: Due to the presence of S. vulgaris infection in the present study being based on S. vulgaris diagnostics performed at the farm level, any association between faecal diagnostic use and risk of infection could not be investigated.
CONCLUSIONS: Although the use of diagnostics for S. vulgaris can keep infection rates low, large farms or livery yards with many different horse owners, and those with low use of biosecurity measures as regards to new horses arriving at the premise, are associated with a higher risk of infection.