Emerging of coagulase negative staphylococci as a cause of mastitis in dairy animals: An environmental hazard

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• 作者：Jakeen K. El-Jakee ; Noha E. Aref ; Alaa Gomaa ; Mahmoud D. El-Hariri ; Hussein M. Galal ; Sherif A. Omar ; Ahmed Samir
• 关键词：Dairy ruminants ; Mastitis ; CNS ; Egypt
• 刊名：International Journal of Veterinary Science and Medicine
• 出版年：December, 2013
• 年：2013
• 卷：1
• 期：2
• 页码：74-78
• 全文大小：340 K

文摘

In Egypt, knowledge about the coagulase negative staphylococci (CNS) involved in mastitic animals is limited. CNS have emerged to be pathogens causing intramammary infections in Egyptian dairy herds. Therefore, the current study was conducted to investigate the occurrence of CNS in dairy ruminants (cattle, buffaloes, sheep and goats). A total of 884 quarter milk samples were investigated to study the prevalence of CNS among mastitic and subclinically mastitic cows, buffalo-cows, ewes and does in Egypt. Identification of the isolates was achieved using API staph test and polymerase chain reaction (PCR). CNS were isolated from the examined subclinical mastitic cattle, buffaloes, sheep and goats with percentages of 16.6%, 59.4%, 50% and 55.6%, respectively. m>Staphylococcus xylosusm>, m>Staphylococcus cohniim>, m>Staphylococcus haemolyticusm>, m>Staphylococcus hominism>, m>Staphylococcus saprophyticusm>, m>Staphylococcus chromogenesm>, m>Staphylococcus lentusm>, m>Staphylococcus lugdunensism> and m>Staphylococcus simulansm> were identified as CNS that recovered from the examined milk samples. The CNS as mastitis-causing agents could not be neglected as they can cause substantial economic losses.