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Occurrence of enterococci in mastitic cow’s milk and their antimicrobial resistance Texto completo
2019
Różańska, Hanna | Lewtak-Piłat, Aleksandra | Kubajka, Maria | Weiner, Marcin
Occurrence of enterococci in mastitic cow’s milk and their antimicrobial resistance Texto completo
2019
Różańska, Hanna | Lewtak-Piłat, Aleksandra | Kubajka, Maria | Weiner, Marcin
Introduction: The aim of the study was to evaluate the occurrence of enterococci in inflammatory secretions from mastitic bovine udders and to assess their antimicrobial resistance. Material and Methods: A total of 2,000 mastitic milk samples from cows were tested in 2014–2017. The isolation of enterococci was performed by precultivation in buffered peptone water, selective multiplication in a broth with sodium azide and cristal violet, and cultivation on Slanetz and Bartley agar. The identification of enterococci was carried out using Api rapid ID 32 strep kits. The antimicrobial susceptibility was evaluated using the MIC technique. Results: Enterococci were isolated from 426 samples (21.3%). Enterococcus faecalis was the predominant species (360 strains), followed by E. faecium (35 isolates), and small numbers of others. The highest level of resistance was observed to lincomycin, tetracycline, quinupristin/dalfopristin (Synercid), erythromycin, kanamycin, streptomycin, chloramphenicol, and tylosin. Single strains were resistant to vancomycin and ciprofloxacin. All isolates were sensitive to daptomycin. E. faecalis presented a higher level of resistance in comparison to E. faecium, except to nitrofurantoin. Conclusion: The results showed frequent occurrence of enterococci in mastitic cow’s milk and confirmed the high rate of their antimicrobial resistance.
Mostrar más [+] Menos [-]Occurrence of enterococci in mastitic cow’s milk and their antimicrobial resistance Texto completo
2019
Różańska Hanna | Lewtak-Piłat Aleksandra | Kubajka Maria | Weiner Marcin
Introduction: The aim of the study was to evaluate the occurrence of enterococci in inflammatory secretions from mastitic bovine udders and to assess their antimicrobial resistance.
Mostrar más [+] Menos [-]THE IMMUNOLOGICAL AND ANTIBACTERIAL EFFECT OF Syzium aromatic EXTRACT ON BACTERIA ISOLATED FROM TEETH Texto completo
2014
Hanaa K. Ibrahem | Rana A.Faaz
Seventy five samples were collected from human teeth of ages about (25-65)years from both sex . Several type of bacteria were diagnosed namely Staphylococcus .aurous (33.33%), E. coli (13.33%) , and Staphylococcus epidermis (22.66%) . Syzygium aromaticum crud extract were used as two type grinding and non-grinding .The minimum concentration of grinding type was( 0.6-2.6) mg/ml and the minimum concentration of non-grinding type was (0.533-2.1) mg/ml that inhibit bacterial growth of S .aurous and E. coli. Antibiotic sensitivity test was applied using discs diffusion method , the sensitivity was (92%) for Staph. aurous toward Kanamycin (K), and (80%) for E.coli toward Ciprofloxacin(Cip).The results showed that the resistance of Staph. aurous was 18(72)% toward Metromidazol(MET) , 22(88)% toward Bacitracin (B), E. coli was 8(80%) toward Streptomycin(S). The phagocytosis test or phagocytosis activity also included in this study.
Mostrar más [+] Menos [-]Characteristics and isolation of Listeria spp from poultry meat, products and environmental specimens in chicken slaughterhouse, 2; Serotype and antimicrobial susceptibilities of L monocytogenes isolates
1991
Son, W.G. | Kang, H.J. (Gyeongsang National Univ., Chinju (Korea Republic). Coll. of Veterinary Medicine)
Biochemical properties and antimicrobial drug susceptibility of Pasteurella haemolytica isolated from pneumonic calves and goats.
1991
Cho, K.H. | Kim, B.H. (Kyungpook National Univ., Taegu (Korea Republic). Coll. of Veterinary Medicine)
