Wystepowanie zakazen Brachyspira hyodysenteriae i Lawsonia intracellularis w krajowej populacji swin

• Autorzy: Pejsak Z , Zmudzki J. , Wasak M. , Porowski M. , Wojciechowski J. , Mirt D.

Warianty tytułu

EN

Prevalence of Brachyspira hyodysenteriae and Lawsonia intracellularis infections in Polish swine population

• Języki publikacji: PL

Abstrakty

EN

Proliferative enteropathy (PE) caused by Lawsonia intracellularis and swine dysentery (SD) with the etiological agent Brachyspira hyodysenteriae are the most common bacterial diarrheal diseases affecting pigs during the growing and finishing stages of production. The economic impact of PE and SD on swine production is attributable to mortality, reduced feed efficacy, costs of medication and additional animal care. The objective of this study was to investigate the prevalence of L. intracellularis and B. hyodysenteriae infections in diarrheic and/or poor growth of pigs by examination of fecal samples obtained from Polish farms with farrow to finish production. On the basis of clinical interviews in 200 medium and large-scale farrow-to-finish pig holdings, 66 farms were chosen for further laboratory examinations. In the investigated farms diarrhoea and/or diversity in body weight was observed in weaners and finishers. Chosen farms were divided into 2 groups: farrow-to-finish medium-scale farms with up to 100 sows (M Farm) - 26 farms; and large-scale farms (above 100 sows; L Farm) - 40 farms. In each kind of farm laboratory examinations for detection of B. hyodysenteriae and L. intracellularis in 18 fecal samples from pigs with diarrhoea or, in absence of diarrhoea, from pigs with a weaker condition were taken. Every 3 fecal samples were put together in one collective sample. The fecal samples were analyzed by nested PCR (L. intracellularis) and PCR (B. hyodysenteriae). L. intracellularis was found in 133 of the 396 fecal samples, which gives a prevalence level of 33.58%. Of the 66 farms tested, 41 (62.12%) were positive for PE. Brachyspira hyodysenteriae was detected in 54 (13.63%) of the 396 tested fecal samples. Of 66 investigated farms suspected of SD 21 (31.81%) were positive. Analyzing the infection level of B. hyodysenteriae with reference to farm size it was observed that 26.92% of medium scale farms and 35.0% of large scale farms were infected. The difference between medium and large farms was distinct concerning PE. From 26 M farms 12 (46.15%) and in case of farms L 72.5% were infected. Our findings show that the prevalence of L. intracellularis in infected farrow-to-finish medium and large scale farms was distinctly higher than the level of B. hyodysenteriae infection. Mixed infections with the mentioned bacteria are also common. Studies on the prevalence of L. intracellularis and B. hyodysenteriae infections showed that these pathogens are widely distributed in the swine population of Poland.

Słowa kluczowe

PL

wystepowanie; rozrostowe zapalenie jelit swin; trzoda chlewna; czestotliwosc wystepowania; dyzenteria; Brachyspira hyodysenteriae; enteropatie krwotoczne; Lawsonia intracellularis; choroby zwierzat

• Wydawca: -
• Czasopismo: Medycyna Weterynaryjna
• Rocznik: 2007
• Tom: 63
• Numer: 08
• Opis fizyczny: s.994-996,rys.,bibliogr.

Twórcy

autor

Pejsak Z

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

autor

Zmudzki J.

autor

Wasak M.

autor

Porowski M.

autor

Wojciechowski J.

autor

Mirt D.

Bibliografia

• 1. Biksi I., Molnár B., Lornicz M., Szász V., Szeifert L., Szneci O.: Lawsonia intracellularis and Brachyspira species prevalence in fatteners in the Czech Republic, Hungary and Poland-Large scale Hungarian units with and without diarrhea. Proc. 19th Int. Pig Vet. Soc. Congr., Copenhagen, s. 354.
• 2. Cizek A., Sperling D., Bednar V., Pejsak Z., Biksi I., Martineau G. P., Sevin J. L., Hasman P., Mirt D.: Lawsonia intracellularis and Brachyspira species prevalence in fatteners in the Czech Republic, Hungary and Poland: Czech large-scale farms without diarrhoea. Proc. 19th Int. Pig Vet. Soc. Congr., Copenhagen, s. 356.
• 3. Dünser M., Untersperger M., Shweighardt H., Schuh M.: Comparative studies by PCR and indirect immunofluorscent antibody test on the occurrence of Lawsonia intracellularis in upper Austrian swine herds. Proc. 16th Int. Pig Vet. Soc. Congr., Melbourne 2000, s. 59.
• 4. Flo H., Bergsjo B.: The prevalence of Brachyspira hyodysenteriae in Norwegian pig herds. Proc. 16th Int. Pig Vet. Soc. Congr., Melbourne 2000, s. 46.
• 5. Flo H., Bergsjo B., Grove S.: The prevalence of Lawsonia intracellularis in Norwegian swine herds. Proc. 16th Int. Pig Vet. Soc. Congr., Melbourne 2000, s. 67.
• 6. Harris D. L., Hampson D. J., Glock R. D.: Swine Dysentery, [w:] Leman A. D., Straw B. E., Mengeling W. L., D'Allaire S., Taylor D. (wyd.): Diseases of Swine. Iowa State University Press, Ames 1999, s. 579-600.
• 7. Herbst W., Willems H., Baljer G.: Distribution of Brachyspira hyodysenteriae and Lawsonia intracellularis in healthy and diarrhoeic pigs. Berl. Münch. Tierarztl. Wschr. 2004, 117, 493-498.
• 8. Lawson G. H. K., Gebhart C. J.: Proliferative Enteropathy. Review. 2000, 122, 77-100.
• 9. Lofstedt M., Holmgren N., Jacobson M., Fellstrom C., Lundeheim N.: Lawsonia intracellualris and Brachyspira species in Swedish growers. Proc. 18th Int. Pig Vet. Soc. Congr., Hamburg 2004, s. 289.
• 10. Ohlinger V. F., Pesch S., Knittel J.: Prevalence of Lawsonia intracellularis in diagnostic samples from Germany, the Netherlands and Belgium. Proc. 16th Int. Pig Vet. Soc. Congr., Melbourne 2000, s. 71.
• 11. Pejsak Z., Żmudzki J., Stankevicius A.: Rozprzestrzenienie zakażeń Lawsonia intracellularis w populacji świń w Polsce. Medycyna Wet. 2001, 57, 887-889.
• 12. Pejsak Z., Żmudzki J., Stankevicius A.: Zastosowanie zmodyfikowanego testu nested-PCR w rozpoznawaniu rozrostowej enteropatii świń. Medycyna Wet. 2001, 57, 723-726.
• 13. Pławińska J., Binek M.: Lawsonia intracellularis - czynnik rozrostowego zapalenia jelit. Medycyna Wet. 2006, 62, 860-864.
• 14. Pławińska J., Jakubowski T., Rzewuska M., Binek M.: Occurrence of Lawsonia intracellularis and Brachyspira spp. infection in swine suffering from diarrhoea. Pol. J. Vet. Sci. 2004, 7, 203-206.
• 15. Rzewuska M., Jakubowski T., Kizerwetter M., Binek M.: Detection of Brachyspira sp. in samples of swine faeces based on culture method and on PCR techinque. Cell. Biol. Mol. Lett. 2001, 6, 813-814.
• 16. Stege H., Jensen T. K., Moller K., Baekbo P., Jorsal S. E.: Prevalence of intestinal pathogens in Danish finishing pig herds. Prev. Vet. Med. 2000, 46, 279-292.
• 17. Żmudzki J.: Diagnostyka różnicowa enteropatii krwotocznych przy użyciu reakcji polimeryzacji łańcuchowej (PCR). Praca doktorska, Puławy 2005.