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 , Staphylococcus 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 ? 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 pneumonia , 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 pneumonia 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.