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Identification of pathogen bacteria from camel (Camelus dromedarius) mastitis and investigation of antibiotic susceptibility

Sükrü Kirkan, U ̆gur Parin, Halil Çapakçioglu
Published: 10 October 2021

Abstract: The scope of this study was to investigate the presence of pathogenic bacteria in milk from female camels with mastitis and to select antibiotics for treatment with antibiotic susceptibility testing. A total of 40 milk samples taken from 20 dromedarian females, after application of CMT test and determination of SCC values, the camels were diagnosed with subclinical mastitis. Milk samples were inoculated into blood agar for identification of bacterial agents leading to mastitis. A total of 4 (12.5%) Staphylococcus aureus, 4 (12.5%) S. auricularis, 2 (6.25%) S. pettenkoperi, 2 (6.25%) S. cohnii spp. cohnii, 2 (6.25%) S. equorum, 2 (6.25%) S. capitis, 2 (6.25%) Streptococcus agalactiae, 2 (6.25%) S. dysgalactiae, 4 (12.5%) Escherichia coli, 2 (%) 6.25) Pseudomonas pseudalcaligenes, 2 (6.25%) Corynebacterium pseudotuberculosis, 2 (6.25%) Aerococcus viridans and 2 (6.25%) Gemella morbillorum were identified. Gram-positive bacteria were sensitive to Levofloxacin, Linezolid and Tetracycline and Daptomycin, resistant to Beta lactam-group antibiotics and macrolides. Vancomycin resistance was determined in S. aureus and S. cohnii spp. cohnii strains. Gram-negative strains are found generally susceptible to Cefepime and Pipersilin; resistant to Trimethoprim-sulfomethoxazole and Amoxicillin-Clavulanic acid. As a result, it is recommended to use antibiotic use to prevent the development of antimicrobial resistance as well as mastitis control methods such as the prevention of infection and monitoring the health status of the mammary of camels.
Keywords: mastitis / antibiotic / camels / Gram / pathogenic / treatment / cohnii / aureus / spp / Identification

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