Effect of dietary inulin and oligosaccharides as prebiotics for weaning turbot, Psetta maxima (Linnaeus, C. 1758)

Type Article
Date 2006-06
Language English
Author(s) Mahious A.S.1, Gatesoupe Joel2, 3, Hervy Magali2, Metailler Robert2, Ollevier F1
Affiliation(s) 1 : Katholieke Univ Leuven, Lab Aquat Ecol, B-3000 Louvain, Belgium.
2 : Unite Mixte Inra Ifremer, Fish Nutr Lab, F-29280 Plouzane, France.
Source Aquaculture International (0967-6120) (Kluwer), 2006-06 , Vol. 14 , N. 3 , P. 219-229
DOI 10.1007/s10499-005-9003-4
WOS© Times Cited 147
Keyword(s) Turbot, Prebiotics, Intestinal flora, Fructo oligosaccharides, Fish nutrition
Abstract Preliminary experiments were undertaken to investigate the effect of dietary inulin (Raftiline ST), oligofructose (Raftilose P95) and lactosucrose on the growth and intestinal bacteria of the marine carnivorous turbot, Psetta maxima. Turbot larvae were weaned on compound diets containing 2% Rafiline ST, 2% Raftilose P95 or 2% lactosucrose; 2% cellulose was the carbon source in the control group. The final mean weight of the group weaned with Raftilose P95 was significantly higher than those observed with the other diets. The bacterial load was highly variable in weaning turbot, especially with respect to the putative Vibrio spp. growing on TCBS agar which, in general, seemed to be dominant. Of the total load of bacterial isolates from turbot weaned on oligofructose, 14% consisted of a strain of Bacillus spp. This strain could use Raftilose P95 as a single source of carbon, and it might play a role in the beneficial effect of oligofructose on turbot growth, since Bacillus spp. have been documented as probiotics in fish.
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