Abstract
The aim of this study was to investigate whether direct PCR (DP) gave similar results to culture prior to PCR (CPP) for detecting mycoplasmas in different types of pig tissues. A total of 724 samples obtained from lungs, tonsils, or synovial fluids from 270 slaughtered pigs were used. The history of clinical signs, lung score, and the presence of joint lesions were recorded during sample collection. The rates of detection of Mycoplasma hyopneumoniae, Mycoplasma hyosynoviae, and Mycoplasma hyorhinis using both procedures were evaluated. The overall prevalences of M. hyopneumoniae, M. hyosynoviae, and M. hyorhinis were 40.3%, 12.3%, and 64.6%, respectively, and the detection rate depended on the sample type and the procedure used. With lung tissue, DP gave a higher detection rate for M. hyopneumoniae (77.4%) than CPP (38.5%). M. hyorhinis was detected by CPP at 15.6% and 18.1% and by DP at 31.5% and 5.2%, respectively. The positive rate derived from tonsil from CPP was closed to that of DP. Using synovial fluid could not yield any positive M. hyorhinis from CPP whereas 37.2% was positive from DP. In contrast, using sample tissue from lung and tonsil by CPP could show much higher positive number than that of DP. There was a significant relationship between joint lesion and M. hyorhinis detection by DP (P < 0.05) but not for M. hyosynoviae and M. hyorhinis detected by CPP. We speculated that lung was a proper sample for M. hyopneumoniae and M. hyorhinis detection by DP and CPP, respectively. Tonsil was likely the community of persistent M. hyosynoviae and M. hyorhinis with highly detection by CPP. Synovial fluid was apparently unsuitable for mycoplasmal culture. The accuracy of mycoplasmal detection may depend upon the type of sample relevant to the detection procedure used.
Similar content being viewed by others
References
Amores, J., Corrales, J. C., Martin, A. G., Sanchez, A., Contreras, A. and de la Fe, C., 2010. Comparison of culture and PCR to detect Mycoplasma agalactiae and Mycoplasma mycoides subsp. capri in ear swabs taken from goats, Veterinary Microbiology, 140, 105–108
Blackman, N. J., Koval, J. J., 2000. Interval estimation for Cohen's kappa as a measure of agreement, Statistics in Medicine, 19, 723–741
Caron, J., Ouardani, M., Dea, S., 2000. Diagnosis and differentiation of Mycoplasma hyopneumoniae and Mycoplasma hyorhinis infections in pigs by PCR amplification of the p36 and p46 genes, Journal of Clinical Microbiology, 38, 1390–1396
Dussurget, O., Roulland-Dussoix, D., 1994. Rapid, sensitive PCR-based detection of mycoplasmas in simulated samples of animal sera, Applied and Environmental Microbiology, 60, 953–959
El Sayed Zaki, M., Raafat, D., El Metaal, A. A., 2009. Relevance of serology for Mycoplasma pneumoniae diagnosis compared with PCR and culture in acute exacerbation of bronchial asthma, American Journal of Clinical Pathology, 131, 74–80
Fablet, C., Marois, C., Kobisch, M., Madec, F., Rose, N., 2010. Estimation of the sensitivity of four sampling methods for Mycoplasma hyopneumoniae detection in live pigs using a Bayesian approach, Veterinary Microbiology, 143, 238–245
Fano, E., Pijoan, C., Dee, S., Deen, J., 2007. Effect of Mycoplasma hyopneumoniae colonization at weaning on disease severity in growing pigs, Canadian Journal of Veterinary Research, 71, 195–200
Friis, N. F., 1972. Isolation and characterization of a new porcine mycoplasma, Acta Veterinaria Scandinavica, 13, 284–286
Friis, N. F., Ahrens, P., Larsen, H., 1991. Mycoplasma hyosynoviae isolation from the upper respiratory tract and tonsils of pigs, Acta Veterinaria Scandinavica, 32, 425–429
Gunnarsson, R. K., Lanke, J., 2002. The predictive value of microbiologic diagnostic tests if asymptomatic carriers are present, Statistics in Medicine, 21, 1773–1785
Hagedorn-Olsen, T., Nielsen, N. C., Friis, N. F., 1999. Induction of arthritis with Mycoplasma hyosynoviae in pigs: clinical response and re-isolation of the organism from body fluids and organs, Zentralbl Veterinarmed A, 46, 317–325
Hariharan, H., MacDonald, J., Carnat, B., Bryenton, J., Heaney, S., 1992. An investigation of bacterial causes of arthritis in slaughter hogs, Journal of Veterinary Diagnostic Investigation, 4, 28–30
Holmgren, N., Lundeheim, N., Wallgren, P., 1999. Infections with Mycoplasma hyopneumoniae and Actinobacillus pleuropneumoniae in fattening pigs. Influence of piglet production systems and influence on production parameters. Zentralbl Veterinarmed B, 46, 535–544
Kahya, S., Temelli, S., Eyigor, A., Carli, K. T., 2010. Real-time PCR culture and serology for the diagnosis of Mycoplasma gallisepticum in chicken breeder flocks, Veterinary Microbiology, 144, 319–324
Kawamura, S., Yamamoto, K., Ogata, M., 1982. Isolation of Mycoplasma hyosynoviae and other mycoplasmas from the respiratory tracts of pigs by aerobic and anaerobic cultivation, Nippon Juigaku Zasshi, 44, 811–4.
Kim, B., Lee, K., Han, K., Kim, D., Ha, Y., Kim, C. H., Oh, Y., Kang, I., Lee, J., Chae, C., 2010. Development of in situ hybridization for the detection of Mycoplasma hyorhinis in formalin-fixed paraffin-embedded tissues from naturally infected pigs with polyserositis, Journal of Veterinary Medical Science, 72, 1225–1227
Kobayashi, H., Morozumi, T., Miyamoto, C., Shimizu, M., Yamada, S., Ohashi, S., Kubo, M., Kimura, K., Mitani, K., Ito, N., Yamamoto, K., 1996. Mycoplasma hyorhinis infection levels in lungs of piglets with porcine reproductive and respiratory syndrome (PRRS), Journal of Veterinary Medical Science, 58, 109–113
Kobisch, M., Friis, N. F., 1996. Swine mycoplasmoses, Revue Scientifique et Technique, 15, 1569–1605
Kurth, K. T., Hsu, T., Snook, E. R., Thacker, E. L., Thacker, B. J., Minion, F. C., 2002. Use of a Mycoplasma hyopneumoniae nested polymerase chain reaction test to determine the optimal sampling sites in swine, Journal of Veterinary Diagnostic Investigation, 14, 463–469
Lin, J. H., Chen, S. P., Yeh, K. S., Weng, C. N., 2006. Mycoplasma hyorhinis in Taiwan: diagnosis and isolation of swine pneumonia pathogen. Veterinary Microbiology, 115, 111–116
Masover, G. K., Mischak, R. P., Hayflick, L., 1975. Some effects of growth medium composition on the antigenicity of a T-strain mycoplasma, Infection and Immunity, 11, 530–539
Mattsson, J. G., Bergstrom, K., Wallgren, P., Johansson, K. E., 1995. Detection of Mycoplasma hyopneumoniae in nose swabs from pigs by in vitro amplification of the 16S rRNA gene, Journal of Clinical Microbiology, 33, 893–897
Moorkamp, L., Nathues, H., Spergser, J., Tegeler, R. and Beilage, E. G., 2008. Detection of respiratory pathogens in porcine lung tissue and lavage fluid, The Veterinary Journal, 175, 273–275
Nielsen, E. O., Lauritsen, K. T., Friis, N. F., Enoe, C., Hagedorn-Olsen, T. and Jungersen, G., 2005. Use of a novel serum ELISA method and the tonsil-carrier state for evaluation of Mycoplasma hyosynoviae distributions in pig herds with or without clinical arthritis, Veterinary Microbiology, 111, 41–50
Ostanello, F., Dottori, M., Gusmara, C., Leotti, G., Sala, V., 2007. Pneumonia disease assessment using a slaughterhouse lung-scoring method, Journal of Veterinary Medicine. A, Physiology, Pathology, Clinical Medicine, 54, 70–75
Palzer, A., Ritzmann, M., Hafner-Marx, A., Wolf, G. and Heinritzi, K., 2006. Detection of Haemophilus parasuis and Mycoplasma hyorhinis in swine and association of those pathogens with clinical and pathological-anatomic findings, Dtsch Tierarztl Wochenschr, 113, 227–230
Stakenborg, T., Vicca, J., Maes, D., Peeters, J., de Kruif, A., Haesebrouck, F. and Butaye, P., 2006. Comparison of molecular techniques for the typing of Mycoplasma hyopneumoniae isolates, Journal of Microbiological Methods, 66, 263–275
Thacker, E. L., 2004. Diagnosis of Mycoplasma hyopneumoniae, Animal Health Research Reviews, 5, 317–320.
Acknowledgments
The authors thank Professor David Hampson of Murdoch University and Chula Unisearch, Chulalongkorn University, for assistance during preparation of the manuscript. We would also like to thank farm owners and their staff for permission and assistance during sample collection.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Makhanon, M., Tummaruk, P., Thongkamkoon, P. et al. Comparison of detection procedures of Mycoplasma hyopneumoniae, Mycoplasma hyosynoviae, and Mycoplasma hyorhinis in lungs, tonsils, and synovial fluid of slaughtered pigs and their distributions in Thailand. Trop Anim Health Prod 44, 313–318 (2012). https://doi.org/10.1007/s11250-011-0022-z
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11250-011-0022-z