期刊
PESQUISA VETERINARIA BRASILEIRA
卷 29, 期 7, 页码 552-556出版社
REVISTA PESQUISA VETERINARIA BRASILEIRA
DOI: 10.1590/S0100-736X2009000700009
关键词
Mycoplasma gallisepticum; M. synoviae; PCR; epidemiology; chicken
资金
- FAPESP (Fundacao de Amparo a Pesquisa do Estado de Sao Paulo)
Buim M.R., Mettifogo E., Timenetsky J., Kleven S. & Ferreira A.J.P. 2009. Epidemiological survey on Mycoplasma gallisepticum and M. synoviae by multiplex PCR in commercial poultry. Pesquisa Veterinaria Brasileira 29(7): 552-556. Departamento de Patologia, Faculdade de Medicina Veterinaria e Zootecnia, Universidade de Sao Paulo, Sao Paulo, SP 05508-900, Brazil. E-mail: ajpferr@usp.br Mycoplasmas are important avian pathogens, which cause respiratory and joint diseases that result in large economic losses in Brazilian and world-wide poultry industry. This investigation regarding the main species of mycoplasmas, Mycoplasma gallisepticum (MG) and M. synoviae (MS), responsible for the above mentioned conditions, was carried out through PCR Multiplex analysis. One thousand and forty-six (1,046) samples of tracheal swabs and piped embryos were collected from 33 farms with laying hens, breeders, broilers or hatchery, located in the Brazilian states of Sao Paulo, Parana and Pernambuco, where respiratory problems or drops in egg production had occurred. The MG and MS prevalence on the farms was 72.7%. These results indicated (1) high dissemination of mycoplasmas in the evaluated farms, with predominance of MS, either as single infectious agent or associated with other mycoplasmas in 20 farms (60.6%), and (2) an increase of MS and decrease of MG infection in Brazilian commercial poultry.
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