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–analysis. Brazil J Poult Sci 2006, 8, 89–98. 4. Herich R., Kokinčáková T., Lauková A., Levkutová M.: Effect of preventive application of Enterococcus faecium EF55 on intestinal mucosa during salmonellosis in chickens. Czech J Anim Sci 2010, 55, 42–47. 5. Iji P.A., Saki A.A., Tivey D.R.: Intestinal structure and function of broiler chickens on diets supplemented with a mannan oligosaccharide. J Sci Food Agr 2001, 81, 1186–1192. 6. Kaur N., Gupta A. K.: Application of inulin and oligofructose in health and nutrition. J Biosci 2002, 27, 703–714. 7. Knodler L.A, Finlay B

Abstract

The aim of the study was to evaluate the drug resistance of Enterococcus faecalis and Enterococcus faecium isolated from different types of poultry waste. The study material consisted of feather samples (duck, turkey, chicken), sludge and centrifuge sediment, originating from three poultry farms. The study was conducted in two stages; isolation and identification of Enterococcus bacteria from the waste and evaluation of their drug resistance using Kirby-Bauer method. Contamination of the poultry waste with Enterococcus isolates included E. faecium species (79 %) and E. faecalis (21 %). The most contaminated were sludge and sediment from the centrifuge as well as chicken feathers, irrespective of the place and time of sampling. Tested isolates showed multiple resistance and similar reaction to all antibiotics used in the study and E. faecalis strain was more resistant. Enterococcus isolates showed the highest resistance to streptogramins, carbapenems, fluoroquinones, aminoglycosides and penicillins, and the lowest for nitrofurantions and phenicols.

REFERENCES Alatoom AA, Cunningham SA, Ihde S, Mandrekar J, Patel R (2011): Comparison of direct colony method versus extraction method for identification of Gram-positive cocci by use of Bruker Biotyper matrix-assissted laser desorption ionization-time of flight mass spectrometry. Journal of Clinical Microbiology, 49, 2868–2873. Aymerich T, Holo H, Havarstein LS, Hugas M, Garriga M, and Nes IF (1996): Biochemical and genetic characterization of enterocin A from Enterococcus faecium , a new antilisterial bacteriocin in the pediocin family of bacteriocins. Applied

.1998.00404.x L auková , A., S trompfová , V., O uwehand , A. (2004): Adhesion properties of enterococci to intestinal mucus of different hosts. Vet . Res . Commun ., 28(8): 647 – 655. DOI: 10.1023/B:VERC.0000045948.04027.a7 L auková , A., C hrastinová , Ľ., P ogány S imonová , M., S trompfová , V., P lachá , I., Č obanová , K., F ormelová , Z., C hrenková , M., O ndruška , Ľ. (2012): Enterococcus faecium AL41: its enterocin M and their beneficial use in rabbits husbandry. Probiotics Antimicrob . Proteins , 4(4): 243 – 249. DOI: 10.1007/s12602-012-9118-7 L

peritoneal macrophages of mice infected with T. spiralis . Materials and Methods Probiotic strains The effects of the following bacteria were tested: bacteriocin-producing strains with probiotic properties ( Enterococcus faecium EF55, Enterococcus faecium 2019 = CCM7420, Enterococcus faecium AL41 = CCM8558, Enterococcus durans ED26E/7, and Lactobacillus plantarum 17L/1) and probiotic strain Lactobacillus fermentum AD1 = CCM7421. All used strains are original isolates ( Bucková et al., 2018 ), not previously used for this purpose. Enterococcus faecium EF55 was