Zoeken
Zoeken kan via de modus 'eenvoudig zoeken' (één veld) of uitgebreid via 'geavanceerd zoeken' (meerdere velden). Zo kan je bv. zoeken op een combinatie van een auteursnaam (auteur), een jaartal (jaar) en een documenttype.
Boekenmand
Nuttige resultaten kan je aanvinken en toevoegen aan een mandje. De inhoud hiervan kan je exporteren of afdrukken (naar bv. PDF).
RSS
Op de hoogte blijven van nieuw toegevoegde publicaties binnen uw interessegebied? Dit kan door een RSS-feed (?) te maken van jouw zoekopdracht.
nieuwe zoekopdracht
| one publication added to basket [283756] |
Phaeobacter inhibens as probiotic bacteria in non-axenic Artemia and algae cultures
In: Aquaculture. Elsevier: Amsterdam; London; New York; Oxford; Tokyo. ISSN 0044-8486; e-ISSN 1873-5622
|  |
| Trefwoorden |
Artemia Leach, 1819 [WoRMS]; Phaeobacter Martens, Heidorn, Pukall, Simon, Tindall & Brinkhoff, 2006 [WoRMS]; Roseobacter Shiba, 1991 [WoRMS]; Listonella anguillara (Bergeman, 1909) MacDonell & Colwell, 1985 [WoRMS]
Marien/Kust |
| Author keywords |
Live feed; Artemia; Microalgae; Fish probiotics; Phaeobacter; Roseobacter; Vibrio anguillarum |
| Auteurs | | Top |
- Grotkjær, T.
- Bentzon-Tilia, M.
- D'Alvise, P.
|
- Dierckens, K.
- Bossier, P.
- Gram, L.
|
|
| Abstract |
The growing aquaculture industry is in need for non-antibiotic based disease control strategies to reduce risk of bacteria developing and spreading antibiotic resistance. We have previously, in axenic model systems of live larval feed, demonstrated that bacteria from the Roseobacter clade can antagonize fish pathogens such as Vibrio anguillarum and Vibrio harveyi and that they can reduce larval mortality in challenge trials. However, in the aquaculture production, a natural microbiota is present at all stages and may affect the efficacy of the probiotic bacteria. The purpose of the present study was to determine if marine roseobacters in non-axenic systems were capable of antagonizing fish pathogenic vibrios. We added a controlled background microbiota of four bacterial strains to axenic Artemia and algae (Duniella) and these bacteria had a marginal but significant reducing effect on inoculated Vibrio anguillarum that grew to 107 in control samples but to a level 1–2 log lower in samples with background microbiota. The addition of the Roseobacter-clade bacteria, Phaeobacter inhibens, caused a significant reduction in growth of the pathogen that reached levels 3–4 log lower than in the control. In non-axenic natural Artemia and algae (Tetraselmis) received from an aquaculture unit, Vibrio anguillarum grew to 107 CFU/ml but only reached 104 CFU/ml when P. inhibens was also added. P. inhibens was added at a concentration 106 CFU/ml in all systems and remained at this concentration at the end of the study, irrespective of the background microbiota. We therefore conclude that P. inhibens are indeed promising as probiotic bacteria in marine larvi-culture where it in natural live feed can suppress fish larval pathogens. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
