Genetic Studies on Escherichia Coli Strains Isolated From Cases of Bovine Mastttis

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Genetic Studies on Escherichia Coli Strains Isolated From Cases of Bovine Mastttis

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dc.contributor.author Al Talhi, Abdullah D. [عبد الله دخيل الطلحي] en_US
dc.contributor.author Al Bashan, Munir, M. [منير مصطفى البشعان] en_US
dc.date.accessioned 2009-11-25T15:22:54Z
dc.date.available 2009-11-25T15:22:54Z
dc.date.issued 2007 en_US
dc.identifier.citation Qatar University Science Journal, 2007, Vol. 27, Pages 35-48. en_US
dc.identifier.uri http://hdl.handle.net/10576/9963
dc.description.abstract This study was carried out on 53 milk samples positive for California Mastitis Test taken from eight herds infected with clinical mastitis in Taif City. Mean Somatic cell Count (SCC) was 4, 482, 000 cells / ml. Forty-eight (51.06%) E .coli strains were isolated from bovine mastitic milk by bacteriological methods. From these E .coli strains, 27 were characterized with regard to their serotype and their DNA polymorphism pattern with REP and ERIC primers, special attention was given to recurrent E .coli mastitis in cows . For studying the epidemiology of clinical E . coli mastitis, the combination of serotype and DNA pattern detected , was used in this investigation .It was assured that the PCR reaction with the ERIC primers can be used in the field of E. coli strains identification. Based on the DNA polymorphisms patterns of E. coli isolates from clinical mastitic cows , it revealed that isolates have a great variations in regard to their genotypes. During the same lactation period, it was detected more than one clinical mastitis case associated with E . coli, but this clinical mastitic occurrence was irregularly. Whatever the occurrence, at this rate, E . coli strains isolated from the separate episodes of inflammation, were for the most part, of the same serotype and had the same DNA amplification pattern. Therefore, the PCR DNA amplification method can not replace serotyping in epidemiological studies . en_US
dc.language.iso en en_US
dc.publisher Qatar University en_US
dc.subject Biology en_US
dc.subject بيولوجيا ar
dc.title Genetic Studies on Escherichia Coli Strains Isolated From Cases of Bovine Mastttis en_US
dc.title.alternative دراسات وراثية على ذراري الإشريكية القولونية المعزولة من حالات التهاب الضرع في الأبقار ar
dc.type Article en_US
dc.identifier.pagination 35-48 en_US
dc.identifier.volume 27 en_US

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