Journal of Veterinary Medical Science | |
Mycoplasma hyorhinis Infection Levels in Lungs of Piglets with Porcine Reproductive and Respiratory Syndrome (PRRS) | |
Hideki KOBAYASHI1  Kumiko KIMURA1  Masanori KUBO1  Tetsuo MOROZUMI1  Chikako MIYAMOTO1  Koushi YAMAMOTO1  Seiichi OHASHI1  Nobuyoshi ITO1  Syunji YAMADA1  Kenji MITANI1  Mitsugu SHIMIZU1  | |
关键词: mycoplasma; Mycoplasma hyorhinis; PCR; PRRS; swine; | |
DOI : 10.1292/jvms.58.109 | |
学科分类:兽医学 | |
来源: Japanese Society of Veterinary Science | |
【 摘 要 】
References(16)Cited-By(19)The infection levels of Mycoplasma hyorhinis, M.hyopneumoniae and M.hyosynoviae in the lung of piglets were examined in relation to porcine reproductive and respiratory syndrome (PRRS). These animals consisted of 43 PRRS piglets with PRRS, 2 piglets infected with PRRS virus but symptom-free, and 10 control piglets free of PRRS virus and its antibody. M.hyorhinis was isolated from 40 of the 43 PRRS piglets, from 1 of the 2 latent infected piglets and from 3 of the 10 control piglets. The number of M.hyorhinis isolated from the lungs of PRRS piglets was more than 105 CFU/g, but those isolated from the latent infected piglets and the control piglets were less than 103 CFU/g. In addition to this, Haemophilus parasuis and Pasteurella spp. were frequently isolated from the piglets with PRRS (51.2% and 25.6%, respectively). On the other hand, M.hyopneumoniae was isolated from only 4 of 55 piglets tested, and M.hyosynoviae was not isolated. M.hyorhinis was also detected directly in the lung emulsion samples from almost all the PRRS piglets using a polymerase chain reaction-based method.
【 授权许可】
Unknown
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