Streptococci are frequently isolated from bovine mastitis in dairy cows with only limited information about the antimicrobial susceptibility of these organisms. The aim of this study was to investigate the prevalence of Streptococcus agalactiae isolated from clinical cases of bovine mastitis in Germi, Iran; and determine their susceptibility to some antibiotics. 700 milk samples collected from traditional and industrial dairy cattle husbandry suspected of having mastitic udders were submitted to laboratory for bacteriologic identification by biochemical and serological methods. The susceptibility patterns were studied by agar disk diffusion methods (ADDM). A total of 525 (75%) of the milk samples streptococci isolate belonging to 3 species namely S. agalactiae (52.95%), S. dysgalactiae (25.57%) and S. uberis (18.48%). All of isolates were resistant to streptomycin. Sensitivity to other antibiotics tested was varied. In comparison with other antibiotics amoxicillin and cephalexin were the most effective, in vitro. These species of streptococcus are of great public importance and the antibiotic susceptibility tests should be performed together with the identification of the bacterial agents in order to achieve effective treatment.
| Published in | Animal and Veterinary Sciences (Volume 2, Issue 2) |
| DOI | 10.11648/j.avs.20140202.13 |
| Page(s) | 31-35 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2014. Published by Science Publishing Group |
Streptococcus Agalactiae, Antibiotic Susceptibility, Mastitis, Germi, Iran
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APA Style
Gharari Kia, Ghasemi Mehdi, Radjabalizade Keyvan. (2014). Prevalence and Antibiotic Susceptibility of Streptococcus spp. in Cows with Mastitis in Germi, Iran. Animal and Veterinary Sciences, 2(2), 31-35. https://doi.org/10.11648/j.avs.20140202.13
ACS Style
Gharari Kia; Ghasemi Mehdi; Radjabalizade Keyvan. Prevalence and Antibiotic Susceptibility of Streptococcus spp. in Cows with Mastitis in Germi, Iran. Anim. Vet. Sci. 2014, 2(2), 31-35. doi: 10.11648/j.avs.20140202.13
AMA Style
Gharari Kia, Ghasemi Mehdi, Radjabalizade Keyvan. Prevalence and Antibiotic Susceptibility of Streptococcus spp. in Cows with Mastitis in Germi, Iran. Anim Vet Sci. 2014;2(2):31-35. doi: 10.11648/j.avs.20140202.13
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Download@article{10.11648/j.avs.20140202.13,
author = {Gharari Kia and Ghasemi Mehdi and Radjabalizade Keyvan},
title = {Prevalence and Antibiotic Susceptibility of Streptococcus spp. in Cows with Mastitis in Germi, Iran},
journal = {Animal and Veterinary Sciences},
volume = {2},
number = {2},
pages = {31-35},
doi = {10.11648/j.avs.20140202.13},
url = {https://doi.org/10.11648/j.avs.20140202.13},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.avs.20140202.13},
abstract = {Streptococci are frequently isolated from bovine mastitis in dairy cows with only limited information about the antimicrobial susceptibility of these organisms. The aim of this study was to investigate the prevalence of Streptococcus agalactiae isolated from clinical cases of bovine mastitis in Germi, Iran; and determine their susceptibility to some antibiotics. 700 milk samples collected from traditional and industrial dairy cattle husbandry suspected of having mastitic udders were submitted to laboratory for bacteriologic identification by biochemical and serological methods. The susceptibility patterns were studied by agar disk diffusion methods (ADDM). A total of 525 (75%) of the milk samples streptococci isolate belonging to 3 species namely S. agalactiae (52.95%), S. dysgalactiae (25.57%) and S. uberis (18.48%). All of isolates were resistant to streptomycin. Sensitivity to other antibiotics tested was varied. In comparison with other antibiotics amoxicillin and cephalexin were the most effective, in vitro. These species of streptococcus are of great public importance and the antibiotic susceptibility tests should be performed together with the identification of the bacterial agents in order to achieve effective treatment.},
year = {2014}
}
TY - JOUR T1 - Prevalence and Antibiotic Susceptibility of Streptococcus spp. in Cows with Mastitis in Germi, Iran AU - Gharari Kia AU - Ghasemi Mehdi AU - Radjabalizade Keyvan Y1 - 2014/03/20 PY - 2014 N1 - https://doi.org/10.11648/j.avs.20140202.13 DO - 10.11648/j.avs.20140202.13 T2 - Animal and Veterinary Sciences JF - Animal and Veterinary Sciences JO - Animal and Veterinary Sciences SP - 31 EP - 35 PB - Science Publishing Group SN - 2328-5850 UR - https://doi.org/10.11648/j.avs.20140202.13 AB - Streptococci are frequently isolated from bovine mastitis in dairy cows with only limited information about the antimicrobial susceptibility of these organisms. The aim of this study was to investigate the prevalence of Streptococcus agalactiae isolated from clinical cases of bovine mastitis in Germi, Iran; and determine their susceptibility to some antibiotics. 700 milk samples collected from traditional and industrial dairy cattle husbandry suspected of having mastitic udders were submitted to laboratory for bacteriologic identification by biochemical and serological methods. The susceptibility patterns were studied by agar disk diffusion methods (ADDM). A total of 525 (75%) of the milk samples streptococci isolate belonging to 3 species namely S. agalactiae (52.95%), S. dysgalactiae (25.57%) and S. uberis (18.48%). All of isolates were resistant to streptomycin. Sensitivity to other antibiotics tested was varied. In comparison with other antibiotics amoxicillin and cephalexin were the most effective, in vitro. These species of streptococcus are of great public importance and the antibiotic susceptibility tests should be performed together with the identification of the bacterial agents in order to achieve effective treatment. VL - 2 IS - 2 ER -
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