OCCURRENCE OF SOME PATHOGENITY FACTORS IN COAGULASE NEGATIVE STAPHYLOCOCCI ISOLATED FROM MASTITIS MILK IN DAIRY COWS

<p class="MsoNormal" style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-indent: 35.4pt; line-height: 150%; text-align: justify; mso-layout-grid-align: none;"><span style="line-height: 150%; text-indent: 35.4pt; ">Experiment we carried out on the herd of 115 Slovak Pied dairy cows. Were realized three collections of individual milk samples for isolation and identification of coagulase-negative staphylococci (CNS). We collected 341 milk samples. Coagulase - negative staphylococci were isolated in 18.8 % (64). Highest number of CNS we isolated from acute, subclinical, subacute and latent forms of mastitis, respectively.&nbsp;</span><em style="mso-bidi-font-style: normal;">S. warneri&nbsp;</em><span style="line-height: 150%; text-indent: 35.4pt; ">(2.88 %),&nbsp;</span><em style="mso-bidi-font-style: normal;">S. chromogenes&nbsp;</em><span style="line-height: 150%; text-indent: 35.4pt; ">(17.19 %)</span><em style="mso-bidi-font-style: normal;">, S. cohnii&nbsp;</em><span style="line-height: 150%; text-indent: 35.4pt; ">(15.63 %) and&nbsp;</span><em style="mso-bidi-font-style: normal;">S. xylosus</em><span style="line-height: 150%; text-indent: 35.4pt; ">&nbsp;(14.06 %) was isolated in highest percentage. Was detected presence of 7 virulence factors, include production of staphylococcal enterotoxins, and resistance for antibiotics.&nbsp;</span><em style="mso-bidi-font-style: normal;">S. chromogenes, S. warneri</em><span style="line-height: 150%; text-indent: 35.4pt; ">&nbsp;and&nbsp;</span><em style="mso-bidi-font-style: normal;">S. xylosus&nbsp;</em><span style="line-height: 150%; text-indent: 35.4pt; ">were detected as most virulent species carrying most virulence factors, and were resistant for most species of tested antibiotics (</span><em style="mso-bidi-font-style: normal;">S. xylosus</em><span style="line-height: 150%; text-indent: 35.4pt; ">&nbsp;resistant for N, NV, L, P, E;&nbsp;</span><em style="mso-bidi-font-style: normal;">S. chromogenes, S. sciuri</em><span style="line-height: 150%; text-indent: 35.4pt; ">&nbsp;for 4 species of antibiotics). There pathogens were isolated from acute forms of mastitis.&nbsp;</span></p><p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; text-indent: 35.4pt; line-height: 150%; text-align: justify; mso-layout-grid-align: none;"><br /><strong>doi:10.521/186</strong></p><p style="text-justify: inter-ideograph; margin: 0cm 0cm 0pt; line-height: 150%; text-align: justify; mso-layout-grid-align: none;">&nbsp;</p><p>&nbsp;</p>