Prevalence of avian Chlamydophila psittaci in China

• Autorzy: Yang J , Yang Q. , Yang J. , He C.
• Języki publikacji: EN

Abstrakty

EN

Examinations were carried out in 46 intensive farms in northern China to investigate avian Chlamydophila psittaci. Five hundred and twenty-five avian sera were selected for examining antibodies to C. psittaci by ELISA. One hundred and fifty-five clinical samples from throat swabs and oviduct tissues were tested for the presence of chlamydial antigen using IDEIA™ PCE chlamydia dual amplification immunoassay, and 60 samples were tested by ompA gene-based PCR. C. psittaci antibodies were detected in 387 (77.8%) out of 525 serum samples, with seroprevalences ranging from 50% to 100%. Among the tested samples, 98/150 (65.3%) in broilers, 173/210 (82.3%) in ducks, and 116/165 (70.3%) in laying hens were detected to be positive, respectively. Using PCE-ELISA test kits, in 91 out of 155 clinical samples the presence of antigen was confirmed, while 64 samples were negative. Forty-three PCR's were tested as positive out of 60 samples, while 17 samples were confirmed to be negative. Both higher positive antibodies and the presence of antigens were found in avian flocks associated with typical clinical signs suggestive of chlamydiosis. This study showed a severe prevalence of C. psittaci among different species of domestic birds in China.

Słowa kluczowe

EN

avian chlamydiosis; prevalence; veterinary medicine; Chlamydophila psittaci; China; poultry; immunodiagnosis; chlamydiosis; animal disease; antibody

• Wydawca: -
• Czasopismo: Bulletin of the Veterinary Institute in Puławy
• Rocznik: 2007
• Tom: 51
• Numer: 3
• Opis fizyczny: p.347-350,ref.

Twórcy

autor

Yang J

• College of Veterinary Medicine, China Agricultural University, Beijing 100094, China

autor

Yang Q.

autor

Yang J.

autor

He C.

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