Journal Algérien des Régions Arides
Volume 13, Numéro 2, Pages 84-94
2019-12-18

Evaluation Of The Resistance To Antibiotics Of Bacteria Responsible For Mastitis In Cows In Southern Algeria



Authors : Saidi Radhwane . Mimoune Nora . Benaissa Mohamed Hocine . Baazizi Ratiba . Khelef Djamel . Bahouh Mohamed Wail . Kaidi Rachid .

Abstract

The aim of this study is to evaluate the sensitivity of germs isolated from mastitis towards different antibiotics. The work carried out on several cattle herds in the South region of Algeria. A total of 80 bacterial strains were isolated to be the subject of a disk-diffusion agar antibiotic sensitivity test, the bacterial strains were under the groups of Staphylococcus coagulase positive SCP (10), Staphylococcus coagulase negative SCN (35) and Enterobacteriaceae (35).Twenty-one antibiotic’s effectiveness were put to the test. The results showed that 100% of the SCP strains were resistant to Penicillin G, while the SCN strains were less resistant to it with a resistance rate of 71.42%. SCN strains’ resistance was high towards oxacillin (68.57%), erythromycin (54.28%), clindamycin (54.28%), and for vancomycin (51.42%). However, no resistance was recorded against gentamycin. Enterobacteriaceae strains had a high resistance against the combination: Amoxicillin + clavulanate (74.28%). On light of the results, the following antibiotics: Gentamicin, the combination Trimethoprim-sulfamethoxazole and enrofloxacin tend to be the best antibiotics to fight against mastitis in the center region of Algeria. It must be noted that while being very effective, it’s not recommended to use Gentamicin, because it is not that available in our region and is very costly; on the other hand we recommend the use of Sulfamides due to their availability in the Algerian market and being cheaper.

Keywords

Mastitis ; antibiotics ; resistance ; Southern Algeria

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