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The ISU VDL is now offering a new diagnostic test (real-time PCR) to detect the genetic material of Mycoplasma bovis. Preferred samples are milk, bulk tank milk, lung, tracheal wash, bronchoalveolar lavage, joint and ear fluid, tonsil swabs and nasal swabs (as a last resort in the diagnosis of M. bovis disease). The regular testing days will be Monday and Thursday. Please contact the diagnostic laboratory for submission practices and samples for the most economical testing. When submitting samples that do not require histopathology, please be sure to clearly specify the PCR test.
Mycoplasma hyosynoviae is common in swine herds and can be found in the nasal and pharyngeal secretions and lungs of healthy pigs. Stress or other predisposing factors can lead to systemic spread resulting in arthritis in pigs between the ages of 12-24 weeks with a morbidity of 1-50% within affected herds.
The optimal sample to submit is joint fluid. Joint swabs or joint tissue such as synovium are also acceptable. Samples should be transported chilled on ice but not frozen.
Mycoplasma hyorhinis is ubiquitous in swine herds and can be found in the lungs and nasal secretions of healthy pigs. But predisposing factors such as concurrent disease or stress can lead to septicemic spread resulting arthritis and serofibrinous to fibrinopurulent polyserositis. M. hyorhinis most commonly affects pigs between the ages of 3-10 weeks, but occasionally can affect young-adult swine.
Samples to submit from arthritis cases may be joint fluid (preferred), a joint swab or joint tissue. Polyserositis cases should submit serous exudates, swab or fibrin tag. Samples should be transported chilled on ice, but not frozen.
See the VDL fee schedule.
For more information, please contact the ISU VDL at 515-294-1950.