African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12496

Full Length Research Paper

Antibiotic susceptibility of Lactococcus garvieae isolated from rainbow trout (Oncorhynchus mykiss) in Iran fish farms

Mehdi Raissy1* and Mahsa Ansari2
  1Department of Aquatic Animal Health, Faculty of Veterinary Medicine, Islamic Azad University, Shahrekord Branch, Shahrekord, Iran. 2Young Researchers Club, Islamic Azad University, Shahrekord Branch, Shahrekord, Iran.
Email: [email protected]

  •  Accepted: 17 December 2010
  •  Published: 21 February 2011

Abstract

 

The rates of antibiotic susceptibility and resistance were investigated inLactococcus garvieae isolates obtained from diseased rainbow trout. A total of 250 clinically suspected fishes were obtained from 10 rainbow trout fish farms in Chaharmahal and Bakhtyari Provinces Iran which is a major trout producing area. L. garvieae strains were isolated from fish tissues such as kidney, spleen and heart, and were identified by biochemical tests and polymerase chain reaction (PCR). All the isolates were found to be resistant to commonly used antibiotics. Resistance to different antibiotics ranged from 25 to 100% of all 52 isolates. These findings revealed a high rate of antibiotic resistance among the strains of L. garvieae which can be transferred to other bacteria.

 

Key words: Antibiotic susceptibility and resistance, Lactococcus garvieae, rainbow trout.

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This article is published under the terms of the Creative Commons Attribution License 4.0

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