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Antibiotic-resistance Staphylococcus Aureus Isolated From Cow?s Milk In The Hawassa Area, South Ethiopia | 9540
ISSN: 2155-9910

Journal of Marine Science: Research & Development
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Antibiotic-resistance Staphylococcus aureus isolated from cow?s milk in the Hawassa area, South Ethiopia

International Conference on Oceanography & Natural Disasters

Deresse Daka

Accepted Abstracts: J Marine Sci Res Dev

DOI: 10.4172/2155-9910.S1.004

Abstract
Quarter milk samples from cows were examined to determine the prevalence of Staphylococcus aureus (SA) and different antibiotic resistant pattern were determined in a cross-sectional study design. Objective: The aim of this study was to isolate Staphylococcus aureus from samples of cow?s milk obtained from Hawassa area and to determine their antibiotic susceptibility patterns. Method: A total of 160 milk (CCP1-CCP5) samples were collected and screened for the presence of S. aureus . Gram staining, oxidase, catalase, DNase, haemolysis and coagulase tests were employed for bacterial identification. Results: All the samples were contaminated with S. aureus. A total of 78 S. aureus isolates were obtained during this study. The levels of contamination with S. aureus were higher in milk obtained from CCP1, CCP2, CCP3, CCP4 and CCP5 at Hawassa area farms (18.0%, 25.6%, 27.0%, 21.8% and 7.7%) respectively. A large percentage of the S. aureus isolates (25.6% and 27.0%) were from CCP2 and CCP3. All strains were resistant to penicillin G (PG), Ampicillin (AP), Amoxicillin-Clavulanic acid (AC), Ciprofloxacin (CIP), erythromycin (E), Ceftriaxone (CRO), Trimethoprime-Salfamethoxazole (TMP-SMZ) Oxacilin (Ox) and vancomycin (V), 67.9%, 70.9%, 30.9%, 0%, 32.1%, 23.1%, 7.7%, 60.3% and 38.5% respectively. Conclusion: The proportion of isolates resistant to CIP, TMP-SMZ, CRO, AC, E and V were low compared to AP, PG and Ox. S. aureus is normally resident in humans; therefore, the S. aureus present in the cow?s milk may have resulted from transmission between the two species, emphasizing the need to improve sanitary conditions in the milking environment.
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