Swine dysentery
The swine dysentery is a diarrheal disease in pigs caused by the bacterium Brachyspira hyodysenteriae caused.
General
Pig dysentery is one of the world's most serious intestinal infections in fattening pigs. The economic damage is caused by poor feed conversion, longer fattening times, veterinary costs, but also direct losses. Environmental factors such as feed changes, transports, poor stable climate and poor hygiene favor the disease.
Etiology and Clinic
The pathogen is spread into the herd mainly by latently infected pigs. After ingestion, B. hyodysenteriae multiplies in the colon mucosa , which then produces more mucus. Focus-shaped necroses and bloody inflammations develop. The resorption of the colon is reduced, so it leads to diarrhea. The excrement is cement-colored and pulpy to slimy and bloody. Runners and younger fattening pigs are particularly affected. There are all levels from peracute to acute to chronic. The flanks appear sunken due to the emptying of the large intestine. If left untreated, the disease lasts for several weeks.
diagnosis
The pathogen is detected in the feces. The clinical picture allows a suspected diagnosis.
therapy
When antibiotics are tiamulin , tylosin , valnemulin and lincomycin effective the drug regulations must be observed and because of the resistance, a test is recommended. There is no vaccine against swine dysentery. In addition to antibiotics, thorough cleaning and disinfection of the stable is required.
literature
- Medical microbiology, infection and epidemic theory by Rolle / Mayr, Enke Verlag Stuttgart 2007