Mycoplasma hyorhinis Infection Levels in Lungs of Piglets with Porcine Reproductive and Respiratory Syndrome (PRRS)
Autor: | Syunji Yamada, Kenji Mitani, Mitsugu Shimizu, Chikako Miyamoto, Hideki Kobayashi, Masanori Kubo, Nobuyoshi Ito, Seiichi Ohashi, Kumiko Kimura, Tetsuo Morozumi, Koushi Yamamoto |
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Rok vydání: | 1996 |
Předmět: |
DNA
Bacterial Arterivirus Swine animal diseases Mycoplasma hyorhinis Molecular Sequence Data Palatine Tonsil Haemophilus Antibodies Viral medicine.disease_cause Polymerase Chain Reaction Virus Mycoplasma fluids and secretions medicine Animals Mycoplasma Infections Pasteurella Respiratory system Lung DNA Primers Swine Diseases Arterivirus Infections Base Sequence integumentary system General Veterinary biology Syndrome respiratory system bacterial infections and mycoses biology.organism_classification Antibodies Bacterial Virology medicine.anatomical_structure biology.protein Antibody |
Zdroj: | Journal of Veterinary Medical Science. 58:109-113 |
ISSN: | 1347-7439 0916-7250 |
DOI: | 10.1292/jvms.58.109 |
Popis: | 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 10(5) CFU/g, but those isolated from the latent infected piglets and the control piglets were less than 10(3) 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. |
Databáze: | OpenAIRE |
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