Screening and Characterization of Probiotic Strains for Prevention of Bacterial Fish Diseases

어류의 세균성 질병 예방을 위한 Probiotic균주의 선발 및 특성

  • 허문수 (제주대학교 해양생산과학부) ;
  • 양병규 (제주대학교 해양생산과학부) ;
  • 전유진 (제주대학교 해양생산과학부)
  • Published : 2003.06.01


The purpose of the present study was to screen the effective of lactic acid bacteria (LAB) as probiotics, which are able to protect aquacultural fish pathogenic bacteria, and investigate their characterization. Twenty strains of lactic acid bacteria were isolated from fish intestine, fermented fish foods and kimchis. These bacteria were screened for antagonistic activity against fish pathogenic bacteria. Seven tested LAB strains were able to inhibit the fish pathogenic bacteria, including Vibrio anguillarum, Edwardsiella tarda, and Streptococcus sp.. Of the probiotic candidates, BK19 strain isolated from fermented pollack viscera indicated the largest inhibition activity. Moreover, this strain showed a resistance over low pH and antibiotic agents. Therefore this probiotic candidate BK19 was finally selected and identified as a probiotic strain. This particular probiotic bacteria was identified as Lactobacillus sakei BK19 by biochemical characteristics and 165 rRNA PCR amplification.


Fish diseases;probiotic;lactic acid bacteria;Vibrio anguillarum


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