Warning over swine dysentery increase

PIG producers are being urged to be on the lookout for symptoms of swine dysentery and step up defences after further cases of the disease have been reported across the North Yorkshire region.

Helen Clarke, veterinary projects manager at Bpex, says: “The disease spreads rapidly, particularly in the current cold weather conditions.”

She says as a highly economi-cally damaging infection, it is imperative any suspected symptoms are reported as soon as possible. “Swine dysentery causes a rapid loss of condition in affected pigs, and eventually loss of stock.

“Clinical signs affecting growing and finishing pigs include bloody diarrhoea, but for outdoor breeding units, clinical signs may not be evident at all.”

She recommends all producers tighten up on biosecurity measures. “The bacterium, which cause the disease, live in the large intestine and are passed out in dung.

“This is why it is so easily spread on boots, vehicles and implements, as well as by rodents and birds, and why hygiene is so important.”

The symptoms

  • Affects growing and finishing pigs
  • Bloody diarrhoea and mucus
  • Causes inflammation of large intestine
  • Current strains showing resistance to medication

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