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Prevalence of Bacteria Associated with Infectious Bovine Mastitis in Some Milk-Producing Municipalities in Norte de Santander Department
摘要
A study was carried out to establish the prevalence of bacteria associated with infectious bovine mastitis in some milk-producing municipalities in Norte de Santander Department, from which possible species of Staphylococcus, Streptococcus and Enterobacteria were isolated and identified. One hundred and sixty three samples which were inoculated by depletion in: Blood Agar and EMB Agar were analyzed and incubated at 37°C/24 h. Preliminary identification of the bacteria was done through conventional biochemical tests and RapID^(TM) ONE System and RapID System PLUS STAPH. A total of 207 bacteria were isolated; 187 isolates corresponded to: Staphylococcus aureus, S. capitis, S. epidermidis, S. haemolyticus, S. saprophyticus, S. simulans and S. xylosus. And 20 isolates to: Escherichia coli, Enterobacter agglomerans, Klebsiella pneumoniae, Shigella spp. and Acinetobacter calcoaceticus. Staphylococcus epidermidis showed the highest prevalence for Pamplona, Pamplonita and Toledo with 19.02, 21, 46 and 7.32%, respectively. In Pamplona, the prevalence of Acinetobacter calcoaceticus and Shigella spp. with 0.49%; Klebsiella pneumoniae and Shigella spp. were isolated in Pamplonita (0.49%), in Toledo E. coli and Enterobacter agglomerans (1.95%). The species isolated in this study have been described as causing mastitis in dairy cattle and their presence is related to cleaning conditions and milking practices.
延伸閱讀
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