Bovine Streptococcus uberis Intramammary Infections and Mastitis
نویسندگان
چکیده
منابع مشابه
Genetic patterns of Streptococcus uberis isolated from bovine mastitis.
The aim of this study was to evaluate the genotypic relationships among 40 Streptococcus uberis isolated from bovine mastitis by using pulsed-field gel electrophoresis (PFGE). Additionally, the association between PFGE patterns and virulence profiles was investigated. The isolates exhibited 17 PFGE patterns. Different strains were found within and among herds; however, a low number of isolates ...
متن کاملActivation of bovine plasminogen by Streptococcus uberis.
Culture filtrate from Streptococcus uberis was found to activate bovine and equine plasminogen but not that from rabbit, human or porcine plasma. In contrast, streptokinase from a Lancefield group C Streptococcus activated human plasminogen but not that from bovine, porcine and rabbit plasma. Very slight activity was observed against equine plasminogen. Plasmin was detected by hydrolysis of ski...
متن کاملDetection of new and persistent Streptococcus uberis and Streptococcus dysgalactiae intramammary infections by polymerase chain reaction-based DNA fingerprinting.
Polymerase chain reaction-based DNA fingerprinting was used as a tool to differentiate new and persistent Streptococcus uberis and Streptococcus dysgalactiae intramammary infections (IMI) in dairy cows. The same subtype of S. uberis or S. dysgalactiae was detected from some infected mammary glands from one lactation to the next documenting the persistence of these infections. Conversely, some s...
متن کاملEffect of recombinant bovine somatotropin on milk production and composition of cows with Streptococcus uberis mastitis.
The protective effect of bovine somatotropin (bST) during experimental Streptococcus uberis mastitis in cows was studied. The left quarters of 10 cows were infected with 500 cfu of S. uberis O140J. Five cows were subcutaneously treated with 500 mg of recombinant bST 7 d before and after infection, and 5 control cows received the excipient. In the treated cows, total milk production significantl...
متن کاملPhenotypic and genotypic characterization of Streptococcus uberis isolated from bovine subclinical mastitis in Argentinean dairy farms.
The aim of this study was to investigate the phenotypic and genotypic characteristics of Streptococcus uberis isolated from subclinical mastitis (SCM) cases, and to examine the possible association between both characteristics. A total of 32 S. uberis were isolated from 772 quarter milk samples (SCM > 250,000 cells/ml) collected from 195 cows selected randomly from 18 dairy farms located in Arg...
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ژورنال
عنوان ژورنال: Clinical Microbiology: Open Access
سال: 2014
ISSN: 2327-5073
DOI: 10.4172/2327-5073.1000157