Wystepowanie poodsadzeniowego wielonarzadowego zespolu wyniszczajacego w krajowej populacji swin

• Autorzy: Podgorska K , Stadejek T. , Szczotka A. , Kozaczynski W. , Porowski M. , Pejsak Z.

Warianty tytułu

EN

Occurrence of postweaning multisystemic wasting syndrome in Polish pig herds

• Języki publikacji: PL

Abstrakty

EN

The aim of the study was to assess the occurrence of the postweaning wasting syndrome (PMWS) in Polish pig herds. Thirty-two herds were selected from 195 visited pig production sites based on the appearance of clinical lesions. The population of breeding herds ranged from 25 to 2000 sows and the percentage of losses varied from 2 to 20%. In each farm 3 pigs affected by wasting were autopsied and lymph nodes were collected. Sections of lymph nodes were examined for the presence of histopathological lesions and tested with in situ hybridization to detect the DNA of porcine circovirus type 2 (PCV2), an etiological agent of PMWS. The results were considered as positive when characteristic histopathological changes were detected along with an abundant amount of viral DNA. PMWS was recognized in 26 pigs (27.9%) from 16 farms (50%). In two of those farms PMWS was diagnosed as sporadic, based on the analysis of production parameters and low rate of losses. In 12 herds (37.5%) no pig had DNA of PCV2 in lymph nodes, while in the remaining 4 herds (12.5%) low amounts of DNA were detected in lymph nodes from at least one pig. PMWS was confirmed in all tested farms with breeding herds of more than 1000 sows, while none of the small farms with breeding herds of less than 100 sows were affected. In two other groups of farms counting 100-499 and 500-1000 sows the percentage of affected herds was respectively 33.3% and 57.1%. The established rate of PMWS occurrence was similar to that claimed by most other European countries. Results obtained in this study suggest that the incidence of PMWS outbreaks increases with the size of the herd. A higher number of properly selected samples markedly enhances the probability of disease detection.

Słowa kluczowe

PL

trzoda chlewna; choroby zwierzat; poodsadzeniowy wielonarzadowy zespol wyniszczajacy; wystepowanie; wirus PCV-2; wykrywanie; hybrydyzacja in situ; badania histopatologiczne

• Wydawca: -
• Czasopismo: Medycyna Weterynaryjna
• Rocznik: 2009
• Tom: 65
• Numer: 05
• Opis fizyczny: s.330-333,fot.,rys.,bibliogr.

Twórcy

autor

Podgorska K

• Panstwowy Instytut Weterynaryjny - Panstwowy Instytut Badawczy, Al.Partyzantow 57, 24-100 Pulawy

autor

Stadejek T.

autor

Szczotka A.

autor

Kozaczynski W.

autor

Porowski M.

autor

Pejsak Z.

Bibliografia

• 1. Allan G. M., Ellis J. A.: Porcine circoviruses: a review. J. Vet. Diagn. Invest. 2000, 12, 3-14.
• 2. Lopez-Soria S., Segales J., Rose N., Vinas M. J., Blanchard P., Madec F., Jestin A., Casal J., Domingo M.: An exploratory study on risk factors for postweaning multisystemic wasting syndrome (PMWS) in Spain. Prev. Vet. Med. 2005, 69, 97-107.
• 3. Meerts P., Nauwynck H., Sanches E. M., Mateusen B., Pensaert M. B.: Prevalence of porcine circovirus 2 (PCV2)-related wasting on Belgian farms with or without a history of postweaning multisystemic wasting syndrome. Flemish Vet. J. 2004, 73, 31-38.
• 4. Pejsak Z.: Zespół skórno-nerkowy oraz poodsadzeniowy wielonarządowy zespół wyniszczający - nowa zakaźna choroba świń. Życie Wet. 2000, 75 (11), 575-579.
• 5. Podgórska K.: Opracowanie i zastosowanie metod rozpoznawania zakażeń cirkowirusem świń typ 2 (PCV2). Praca doktorska. PIWet-PIB, Puławy 2008.
• 6. Rose N., Larour G., Le Diguerher G., Eveno E., Jolly J. P., Blanchard P., Oger A., Le Dimna M., Jestin A., Madec F.: Risk factors for porcine post-weaning multisystemic wasting syndrome (PMWS) in 149 French farrow-to-finish herds. Prev. Vet. Med. 2003, 61, 209-225.
• 7. Rosell C., Segales J., Domingo M.: Hepatitis and staging of hepatic damage in pigs naturally infected with porcine circovirus type 2. Vet. Pathol. 2000, 37, 687-692.
• 8. Rosell C., Segales J., Plana-Duran J., Balasch M., Rodriguez-Arrioja G. M., Kennedy S., Allan G. M., McNeilly F., Latimer K. S., Domingo M.: Pathological, immunohistochemical, and in-situ hybridization studies of natural cases of postweaning multisystemic wasting syndrome (PMWS) in pigs. J. Comp. Pathol. 1999, 120, 59-78.
• 9. Ruiz-Fons F., Vicente J., Vidal D., Hofle U., Villanua D., Gauss C., Segales J., Almeria S., Montoro V., Gortazar C.: Seroprevalence of six reproductive pathogens in European wild boar (Sus scrofa) from Spain: the effect on wild boar female reproductive performance. Theriogenology 2006, 65, 731-743.
• 10. Sanchez R. E., Nauwynck Jr. H. J., McNeilly F., Allan G. M., Pensaert M. B.: Porcine circovirus 2 infection in swine foetuses inoculated at different stages of gestation. Vet. Microbiol. 2001, 83, 169-176.
• 11. Segales J.: Update on prevalence, severity and distribution of PMWS cases in Europe. Workshop "PCV2/PMWS: Understanding factors that impact disease expression and control" at the annual meeting of American Association of Swine Veterinarians, March 4-7, 2006, Kansas City, Missouri, USA.
• 12. Segales J., Allan G. M., Domingo M.: Porcine circovirus diseases. Anim. Health. Res. Rev. 2005, 6, 119-142.
• 13. Segales J., Rosell C., Domingo M.: Pathological findings associated with naturally acquired porcine circovirus type 2 associated disease. Vet. Microbiol. 2004, 98, 137-149.
• 14. Sorden S.: Update on porcine circovirus and postweaning multisystemic wasting syndrome (PMWS). J. Swinw Health. Prod. 2000, 8, 133-136.
• 15. Stadejek T., Podgórska K., Kołodziejczyk P., Bogusz R., Kozaczyński W., Pejsak Z.: Pierwszy przypadek poodsadzeniowego wielonarządowego zespołu wyniszczającego świń w Polsce. Medycyna Wet. 2006, 62, 297-301.
• 16. Truszczyński M., Pejsak Z.: Poodsadzeniowy zespół wyniszczający świń. Medycyna Wet. 2007, 63, 595-597.
• 17. Vicente J., Segales J., Hofle U., Balasch M., Plana-Duran J., Domingo M., Gortazar C.: Epidemiological study on porcine circovirus type 2 (PCV2) infection in the European wild boar (Sus scrofa). Vet. Res. 2004, 35, 243-253.
• 18. Vigre H., Baekbo P., Jorsal S. E., Bille-Hansen V., Hassing A. G., Enoe C., Botner A.: Spatial and temporal patterns of pig herds diagnosed with Postweaning Multisystemic Wasting Syndrome (PMWS) during the first two years of its occurrence in Denmark. Vet. Microbiol. 2005, 110, 17-26.
• 19. Walker I. W., Konoby C. A., Jewhurst V. A., McNair I., McNeilly F., Meehan B. M., Cottrell T. S., Ellis J. A., Allan G. M.: Development and application of a competitive enzyme-linked immunosorbent assay for the detection of serum antibodies to porcine circovirus type 2. J. Vet. Diagn. Invest. 2000, 12, 400-405.
• 20. Wellenberg G. J., Stockhofe-Zurwieden N., Boersma W. J. A., de Jong M. F., Elbers A. R. W.: The presence of co-infections in pigs with clinical signs of PMWS in The Netherlands: a case-control study. Res. Vet. Sci. 2004, 77, 177-184.
• 21. Woodbine K. A., Medley G. F., Slevin J., Kilbride E. J., Novell M. J., Turner M. J., Green L. E.: Spatiotemporal patterns and risks of herd breakdowns in pigs with postweaning multisystemic wasting syndrome. Vet. Rec. 2007, 160, 751-762.