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Mycoplasma hyorhinis swine arthritis. 3. Modified disease in Piney Woods swine
Abstract:
Piney Woods miniature swine, when injected with Mycoplasma hyorhinis, develop an acute arthritis. The disease in these animals is limited clinically, microbiologically, and pathologically to a mild acute illness without the more chronic and destructive features noted in a previous study of the experimental disease in Yorkshire swine.
Insights
Piney Woods miniature swine injected with Mycoplasma hyorhinis developed mild acute arthritis. This contrasts with previous findings in Yorkshire swine, showing less chronic and destructive disease features.
Area of Science:
- Veterinary Pathology
- Microbiology
- Swine Infectious Diseases
Background:
- Mycoplasma hyorhinis is a known swine pathogen.
- Experimental Mycoplasma hyorhinis infections can cause arthritis in swine.
- Previous studies documented chronic, destructive arthritis in Yorkshire swine.
Purpose of the Study:
- To investigate the clinical, microbiological, and pathological features of Mycoplasma hyorhinis-induced arthritis in Piney Woods miniature swine.
- To compare the disease course in miniature swine with previously reported findings in Yorkshire swine.
Main Methods:
- Piney Woods miniature swine were experimentally infected with Mycoplasma hyorhinis.
- Clinical signs, microbiological cultures, and pathological examinations were performed.
- Data were compared to historical data from Yorkshire swine.
Main Results:
- Infection with Mycoplasma hyorhinis induced acute arthritis in Piney Woods miniature swine.
- The observed illness was clinically, microbiologically, and pathologically mild.
- Chronic and destructive pathological features were absent in this model.
Conclusions:
- Piney Woods miniature swine present a model for mild acute Mycoplasma hyorhinis arthritis.
- This model differs significantly from the more severe disease observed in Yorkshire swine.
- Further research may elucidate breed-specific differences in Mycoplasma hyorhinis pathogenesis.
