Mycoplasma synoviae

Mycoplasma synoviae
Mycoplasma synoviae
Scientific classification
Kingdom: Bacteria
Division: Firmicutes
Class: Mollicutes
Order: Mycoplasmatales
Family: Mycoplasmataceae
Genus: Mycoplasma
Species: M. synoviae



The bacteria M. synoviae is a member of the mycoplasma genus. It causes disease in the joints, bones and respiratory system of birds. It is found throughout the world and infection may be referred to as Infectious Synovitis, Avian Mycoplasmosis, Infectious Sinusitis and Mycoplasma Arthritis. It is of economic importance because infection can cause a drop in egg production. The disease is most commonly seen in chickens, and transmission occurs both vertically and horizontally.

Clinical Signs & Diagnosis

Common clinical signs include lameness, a stiff gait and abnormal curvature of the limbs. Respiratory and neurological signs are also reported. As mentioned, a drop in [[egg production]] often occurs.

A preliminary diagnosis can be made based on history, clinical exam and postmortem signs. Bacterial culture, immunofluorescence, PCR, ELISA or slide agglutination tests (SAT) can be used to make a more definitive diagnosis.

Treatment & Control

M. synoviae is treated with antibiotics, but resistance to some types is reported. Specific antibiotic treatment is available for eggs.

The disease is controlled with vaccination.

See Also