Abstract
Abstract Objective To determine: species distribution of 35 Enterobacteriaceae isolates involved in bovine mastitis; and antimicrobial susceptibility pattern of all isolates from geographical areas in Algeria. Methods Enterobacteriaceae species identification was performed based on conventional biochemical techniques and using the API 20 E test. The antibiotic susceptibility was determined according to the National Committee for Clinical Laboratory Standards guidelines (NCCLS). In total, 35 Enterobacteriaceae species: Escherichia coli ( E. coli ) ( n =5), Klebsiella oxytoca ( K. oxytoca ) ( n =5), Enterobacter cloacae ( E. cloacae ) ( n =4), Klebsiella ornithinolytica ( K. ornithinolytica ) ( n =4), Kluyvera spp ( n =4), and Hafnia alvei ( H. alvei ) ( n =3), were the most commonly identified. Enterobacteriaceae isolates were the most resistance to Amoxicillin+Clavulanic Acid (74.28%), Ampicillin (28.57%) and Amoxicillin (28.57%) followed by Tetracycline (20%) and Cefodiazin (14.7%). Conclusions We conclude that Enterobacteriaceae species from bovine milk presented significantly distinct antimicrobial resistance profiles, evaluated by phenotypic test, which has implications for treatment and management decisions.
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