Isolation of Mycoplasma anserisalpingitidis from swan goose (Anser cygnoides) in China
2020
Gyuranecz, Miklós | Mitter, Alexa | Kovács, Áron B. | Grózner, Dénes | Kreizinger, Zsuzsa | Bali, Krisztina | Bányai, Krisztián | Morrow, Christopher J.
BACKGROUND: Mycoplasma anserisalpingitidis causes significant economic losses in the domestic goose (Anser anser) industry in Europe. As 95% of the global goose production is in China where the primary species is the swan goose (Anser cygnoides), it is crucial to know whether the agent is present in this region of the world. RESULTS: Purulent cloaca and purulent or necrotic phallus inflammation were observed in affected animals which represented 1–2% of a swan goose breeding flock (75,000 animals) near Guanghzou, China, in September 2019. From twelve sampled animals the cloaca swabs of five birds (three male, two female) were demonstrated to be M. anserisalpingitidis positive by PCR and the agent was successfully isolated from the samples of three female geese. Based on whole genome sequence analysis, the examined isolate showed high genetic similarity (84.67%) with the European isolates. The antibiotic susceptibility profiles of two swan goose isolates, determined by microbroth dilution method against 12 antibiotics and an antibiotic combination were also similar to the European domestic goose ones with tylvalosin and tiamulin being the most effective drugs. CONCLUSIONS: To the best of our knowledge this is the first description of M. anserisalpingitidis infection in swan goose, thus the study highlights the importance of mycoplasmosis in the goose industry on a global scale.
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