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Effects of feeding regime and probionts on the diverting microbial communities in rotifer Brachionus culture
Qi, Z.; Dierckens, K.; Defoirdt, T.; Sorgeloos, P.; Boon, N.; Bao, Z.; Bossier, P. (2009). Effects of feeding regime and probionts on the diverting microbial communities in rotifer Brachionus culture. Aquacult. Int. 17(4): 303-315. dx.doi.org/10.1007/s10499-008-9202-x
In: Aquaculture International. Springer: London. ISSN 0967-6120, more
Peer reviewed article

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Keywords
    Bacteria; Controlled conditions; Culture; Feed; Probiotics; Brachionus Pallas, 1766 [WoRMS]; Rotifera [WoRMS]; Marine
Author keywords
    DGGE; Feeding regime; Microbial community; Probiont; Rotifer

Authors  Top 
  • Boon, N., more
  • Bao, Z.
  • Bossier, P., more

Abstract
    Rotifer growth performance and microbial community changes associated with rotifer cultures were monitored while different feed types (Nannochloropsis oculata paste and the commercial yeast based feed CS-3000), different regimes (daily changes, changes per batch and no changes) and mixtures of three probionts (Phenylobacterium sp.; Gluconobacter sp. and Paracoccus denitrificans) were provided. It was shown that the dominant bacterial species in the cultures receiving either N. oculata or CS-3000 were different. However, in cultures receiving both feeds (either switching between feeds on a daily basis or on a batch basis), a high similarity in microbial community fingerprint was found. The presence of probionts was detected by the end of four batch culture cycles in spite of strong shifts of the bacterial community. By group discriminant analysis, it was found that Phenylobacterium sp. and Paracoccus sp. contributed positively to the CS-3000-fed group, while Gluconobacter sp. contributed positively to the N. oculata-fed group, although they did not appear as very dominant species.

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