Antibacterial Activity and Growth Promotion in Aquacultured Fish by Probiotics

Probiotics에 의한 해수양식어의 성장 촉진 및 항균효과

  • Published : 2001.03.01

Abstract

For the development of probiotics in aquaculture of marine organisms, three strains having psychrophilic and salt tolerant characteristics were isolated from Kimchi. Amng the isolated strains. MG19, MG89 and MG208 were identified as Lactobacillus brevis, Enterococcus faecium and Lactobacillus plantarum, respectively. The neutralized culture broth of isolated strains were tested in order to evaluate the antibactrial activity, 조초 showed high antibacterial activity against Edwardsiella tarda, Vibrio cholerae andPseudomonas fluorescens. In mixed culture of pathogens and isolated strain,pathogens were signifi-cantly inhibited after 2 days of cultivation but the isolated strains showed normal growth. When the Edwardsiella tarda was cultured with three isolated strains, its growth was completely inhibited after 254 hours of cultivation. The effect of isolated three strains as probiotics was investigated based on the changes in body weight of aquacultured flounder. After 50 days feeding trial, it was found that the mean body weight gain of the tested group fed freeze-dried isolated cells was significantly greater than that of the control group. These results suggest that these isolated strains can play an important role as probiotics in aquaculture.

Keywords

References

  1. Bifidobacteria Microflora v.1 Recent trends in research on intestinal flora Mitsuoka, T.
  2. Am. J. Clin. Nutr. v.33 Role of dietary lactobacilli in gastrointestinal microccology Shahani, K. M.;A. D. Ayebo
  3. J. Appl. Bacteriol. v.66 probiotics in man and animals Fuller, R.
  4. Rev. Sci. Tech. Off. Int. Epiz. v.8 Application of probiotics to animal husbundary Tournut, J.
  5. Microb. Ecol. v.38 Bacterial interactions in early life stage of marine cold water fish Hassen, G. H.;J. A. Olafsen
  6. J. Gen. Appl. Microbiol. v.43 Probiotics effect of Lactobacillus sp. DS-12 in flounder(Paralichthys olivaceus) Byun, J. W.;S. C. Park;Y. Beno;T. K. Oh
  7. Bergey's Manual of Sytematic Bacteriology, 9th ed. Krieg, N. R.;J. G. Holt
  8. Manual of Methods for Gerneral Bacteriology Gerhardt, P. G.;R. G. E.Murray;R. N. Costilow;E. W. Nester;W. A. Wood;N. R. Krieg;G. B.Philips
  9. Screening methods for detecting bacteriocin activity, In bacteriocins of lactic acid bacteria Hoover, D. G.;S. K.
  10. Am. J. Clin. Nutr. probiotics, prebiotics and synbiotics;approaches for modulating the microbial ecology of the gut Collins, M. D.;G. R. Gibson
  11. Poults. Sci. v.77 Growth performance, intestinal microbial populations, and serum cholesterol of broilers fed diets containing Lactobacillus cultures Jin, L. Z.;Y. W. Ho;N. Abdullah;S. Jalaludin