Potential Use for Serosurveillance of Feral Swine to Map Risk for Anthrax Exposure, Texas, USA

Dec 27, 2021

Anthrax is a disease of concern in many mammals, including humans. Management primarily consists of prevention through vaccination and tracking clinical-level observations because environmental isolation is laborious and bacterial distribution across large geographic areas difficult to confirm. Feral swine (Sus scrofa) are an invasive species with an extensive range in the southern United States that rarely succumbs to anthrax. We present evidence that feral swine might serve as biosentinels based on comparative seroprevalence in swine from historically defined anthrax-endemic and non-anthrax-endemic regions of Texas. Overall seropositivity was 43.7% (n = 478), and logistic regression revealed county endemicity status, age-class, sex, latitude, and longitude were informative for predicting antibody status. However, of these covariates, only latitude was statistically significant (β = -0.153, p = 0.047). These results suggests anthrax exposure in swine, when paired with continuous location data, could serve as a proxy for bacterial presence in specific areas.

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Video: You Be The Judge: Evaluating 8 Breeding Rams!

It's time for some honest feedback here at Ewetopia Farms! Today, we’re showing you all eight rams we used for breeding this year. Instead of just presenting them, we thought it would be fun to create a “Ram Report Card” — where we point out both their strengths and areas for improvement.

But here’s the twist: you be the judge! In the comments, let us know what you like about each ram and what you think could be improved. No ram is ever perfect, but every one of them brings something valuable to the flock. By sharing perspectives, we all learn more about what to look for in good breeding stock.

At Ewetopia Farms, we raise registered Suffolk and Polled Dorset sheep, focusing on high-quality genetics, structure, and friendly temperaments. Evaluating breeding rams is part of the bigger picture of building stronger flocks — and we’re excited to share the process with you.

If you enjoy seeing how we evaluate our animals, follow along by subscribing to our channel. We share daily insights into the joys and challenges of sheep farming here in Canada.