Use of Organically Certified Yeast in the Diet of Juvenile Rainbow Trout (Oncorhynchus mykiss): Growth Performance, Nutrient Utilization, and Fatty Acid Composition

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dc.contributor.author Guroy D.
dc.contributor.author Tekinay A.
dc.contributor.author Davies S.
dc.date.accessioned 2012-06-22T20:13:19Z
dc.date.available 2012-06-22T20:13:19Z
dc.date.issued 2012
dc.description.abstract This study evaluated the effects of the dietary organically-certified yeast, NuPro™, used as a replacement for fishmeal, on growth performance, nutrient utilization, and fatty acid composition in juvenile rainbow trout, Oncorhynchus mykiss. Two reference diets (conventional and organic) and three experimental diets (including 10%, 20%, or 30% NuPro™) were formulated. Diets were assigned to triplicate groups of 20 fish (4.0 g) for 12 weeks. There were no differences in growth performance or feed conversion ratio (FCR) between the two reference groups and growth responses were similar among experimental groups (p>0.05). Fish fed the 20% diet grew significantly better than the conventional group (p<0.05). Similarly, there were no significant differences in nutrient utilization between reference groups or between experimental groups, and none in body composition between any group (p>0.05). The highest n-3/n-6 ratio was obtained in fish fed the organic diet and the lowest in fish fed the 30% diet. Results show that organically certified yeast can contribute be an effective alternative to plant proteins in organic trout feed.
dc.format.extent 8 pages
dc.identifier.issn 0792-156X
dc.identifier.other IJA_64.2012.722
dc.identifier.uri http://hdl.handle.net/10524/23178
dc.publisher Israeli Journal of Aquaculture - BAMIGDEH
dc.relation.ispartofseries The Israeli Journal of Aquaculture - Bamidgeh
dc.subject juvenile rainbow trout
dc.subject Oncorhynchus mykiss
dc.subject organically certified yeast
dc.subject growth performance
dc.subject feed utilization
dc.subject fatty acid composition
dc.subject.lcsh Fish culture--Israel--Periodicals.
dc.subject.lcsh Fish culture--Periodicals.
dc.subject.lcsh Aquaculture--Israel--Periodicals.
dc.subject.lcsh Aquaculture--Periodicals.
dc.title Use of Organically Certified Yeast in the Diet of Juvenile Rainbow Trout (Oncorhynchus mykiss): Growth Performance, Nutrient Utilization, and Fatty Acid Composition
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