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Characteristics of Staphylococcus Xylosus Isolated from Subclinical Mastitis in Cows

Abstract

The aim of the present study was to determine virulence factors and antibiotic susceptibility of Staphylococcus xylosus isolated from subclinical mastitis in cows. The material consisted of 42 isolates of S. xylosus obtained from 276 samples of milk collected from cows with subclinical mastitis. The isolates were obtained from the udder secretions of 33 cows from farms in the Lublin region (Poland). S. xylosus was found in 15.2% of tested milk samples. The study did not reveal any macroscopic changes in the milk or symptoms in the cow’s body. The number of somatic cells in milk samples ranged from 245,000 to 416,000/ml of milk (on average 268,000/ml of milk). The ability to produce slime was observed in 42.9% of S. xylosus isolates. None of the tested isolates demonstrated the ability to produce protease or cause haemolysis. Five isolates of S. xylosus (11.9%) were classified to the methicillin-resistant group. The mecA gene was not found in any of these isolates. The enzyme β-lactamase was detected in 28.6% of S. xylosus isolates. The highest efficacy against S. xylosus was demonstrated for cephalosporin antibiotics: cefacetrile and cefoperazone (80.1% and 76.2% of susceptible isolates of S. xylosus, respectively). A significant quantity of isolates was resistant to streptomycin, linkomycin, penicillin and neomycin (approximately 10% of susceptible isolates of S. xylosus).

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Identification of Plasmodiophora brassicae Wor. isolate suppressing clubroot resistance in ‘Kilaxy’ F1 white cabbage

niczak J., Niem ann J., Jajor E., Brachaczek A., Kaczmarek J., Książczyk T., 2012. The incidence of clubroot on winter oilseed rape in Poland and the search for sources of genetic resistance in interspecific hybrids and mutants within the genus Brassica. Abstracs 31th Scientific Conference Oilseed Crops, Poznań, 49-51. Kageyama K., Asano T., 2009. Life cycle of Plasmodiophora brassicae. J. Plant Growth Regul. 28: 203-211. Laszczak P., Szczep onek A., Wesołowska M., Michalik B., 2006. Comparison of virulence of Polish Plasmodiophora

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Frequency of occurrence of physical defects in turkey poults / Częstotliwość występowania wad budowy piskląt indyczych

.E., Anderson J.W., Patterson R.A., Velleman S.G. (2008). Genetics of growth and reproduction in the turkey. 17. Changes in genetic parameters over forty generations of selection for increased sixteen-week body weight. Poultry Sci., 87: 1971-1979. Rosario C.C., Lopez C.C., Tellez I.G., Navarro O.A., Anderson R.C., Eslava C.C. (2004). Serotyping and virulence genes detection in Escherichia coli isolated from fertile and infertile eggs, dead-in-shell embryos, and chickens with yolk sac infection. Avian Diseases, 48: 791-802. Shanawany M

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Antimicrobial Susceptibility of Streptococci Most Frequently Isolated from Czech Dairy Cows with Mastitis

–106. De Briyne N., Atkinson J., Pokludová L., Borriello S.P. (2014). Antibiotics used most commonly to treat animals in Europe. Vet. Rec., 175: 325. de Jong A., El Garch F., Simjee S., Moyaert H., Rose M., Youala M., Siegwart E. (2018). Monitoring of antimicrobial susceptibility of udder pathogens recovered from cases of clinical mastitis in dairy cows across Europe: VetPath results. Vet. Microbiol., 213: 73–81. Ding Y., Zhao J., He X., Li M., Guan H., Zhang Z., Li P. (2016). Antimicrobial resistance and virulence-related genes of Streptococcus obtained

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Presence of Meloidogyne enterolobii on Jalapeño pepper (Capsicum annuum L.) in Sinaloa, Mexico

carrying dominant genes conferring resistance to the three major species of RKNs on tomato ( Mi-1 ), potato ( Mh ), soybeans (Mir1) and pepper (N and Tabasco) ( Castagnone-Sereno, 2012 ). Meloidogyne enterolobii has been detected in Africa, Europe, USA, Central and South America ( Brito et al ., 2007 ; Moens et al., 2009 ; Castagnone-Sereno, 2012 ); and recently was first reported in Mexico parasitizing watermelon (Veracruz state) and tomato plants (Sinaloa state) ( Ramirez-Suarez et al ., 2014 ; Martinez et al ., 2015 ); however, its presence in other crops

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Food-Borne Pathogens and Contaminants in Raw Milk – A Review

–78. Skaug M.A., Helland I., Solvoll K., Saugstad O.D. (2001). Presence of ochratoxin A in human milk in relation to dietary intake. Food Addit. Contam., 18: 321–327. Solomakos N., Govaris A., Angelidis A.S., Pournaras S., Burriel A.R., Kritas S.K., Papageorgiou D.K. (2009). Occurrence, virulence genes and antibiotic resistance of Escherichia coli O157 isolated from raw bovine, caprine and ovine milk in Greece. Food Microbiol., 26: 865–871. Sørensen L.K., Elbæk T.H. (2005). Determination of mycotoxins in bovine milk by liquid chromatography tandem mass

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The evolutionary ecology of interactive synchronism: the illusion of the optimal phenotype

References Abbate, L., Kada, S. & Lion, S. (2015) Beyond mortality: sterility as a neglected component of parasite virulence. PLoS Pathogenes, 11, 1-10. Abrams, P.A. (2006) The effects of switching behavior on the evolutionary diversification of generalist consumers. American Naturalist, 168, 645-659. Amos, W. & Hardwood, J. (1998) Factors affecting levels of genetic diversity in natural populations. Philosophical Transactions of the Royal Society of London B Biological Sciences, 353, 177

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Identification and intraspecific variability of Steinernema feltiae (Filipjev, 1934) isolates from different localities in Poland

species with traditional method remains difficult and in many instances only the analysis of DNA sequences from species in question can provide an accurate identification ( Liu & Berry, 1995 ). Internal transcribed spacer regions of the ribosomal DNA (rDNA) tandem repeat unit (ITS1 – 5.8S –ITS2) are required to species identification and in phylogenetic studies ( Nguyen et al ., 2001 ; Stock et al ., 2001 ; Hominick, 2002 ; Spiridonow et al ., 2004 ). The ITS region gene sequences has also been used to study among- and intra-population variability of Steinernema

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Overview of Prebiotics and Probiotics: Focus on Performance, Gut Health and Immunity – A Review

essential oil mixture in healthy and Eimeria spp.-infected broilers. Poultry Sci., 93: 389–399. Braat H., Van Den Brande J., Van Tol E., Hommes D., Peppelenbosch M., Van Deventer S. (2004). Lactobacillus rhamnosus induces peripheral hyporesponsiveness in stimulated CD4+ T cells via modulation of dendritic cell function. Am. J. Clinic. Nutr., 80: 1618–1625. Brisbin J.T., Zhou H., Gong J., Sabour P., Akbari M.R., Haghighi H.R., Yu H., Clarke A., Sarson A.J., Sharif S. (2008). Gene expression profiling of chicken lymphoid cells after treatment with lactobacillus

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Biomolecular changes and cortical neurodegenerative lesions in Trichinella spiralis infected BALB/c mice: a preliminary study elucidating a potential relationship between systemic helminthic infections and idiopathic Parkinson’s

): Presence Of Reactive Microglia In Monkey Substantia Nigra Years After 1-Methyl- 4-Phenyl-1,2,3,6-Tetrahydropyridine Administration. Ann. Neurol., 54(5): 599 - 604. Doi: 10.1002/Ana.10728 Masocha, W., Kristensson, K. (2012): Passage Of Parasites Across The Blood-Brain Barrier. Virulence, 3(2): 202 - 212. Doi: 10.4161/Viru.19178 Medeiros, M.S., Schumacher-Schuh, A., Cardoso, A.M., Bochi, G.V., Baldissarelli, J., Kegler, A., Santana, D., Chaves, C.M., Schetinger, M.R., Moresco, R.N., Rieder, C.R., Fighera, M.R. (2016): Iron And Oxidative

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