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Gut microbiota changes in rainbow trout, Oncorhynchus mykiss (Walbaum), during organic acid feed supplementation and Yersinia ruckeri infection

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Gut microbiota changes in rainbow trout, Oncorhynchus mykiss (Walbaum), during organic acid feed supplementation and Yersinia ruckeri infection

dc.contributor.author	Jaafar, R. M.
dc.contributor.author	Kania, P. W.
dc.contributor.author	Larsen, A. H.
dc.contributor.author	Nielsen, D. S.
dc.contributor.author	Fouz Rodríguez, Belén
dc.contributor.author	Browdy, C.
dc.contributor.author	Buchmann, K.
dc.date.accessioned	2015-07-03T08:00:15Z
dc.date.available	2015-07-03T08:00:15Z
dc.date.issued	2013
dc.identifier.citation	Jaafar, R. M. Kania, P. W. Larsen, A. H. Nielsen, D. S. Fouz Rodríguez, Belén Browdy, C. Buchmann, K. 2013 Gut microbiota changes in rainbow trout, Oncorhynchus mykiss (Walbaum), during organic acid feed supplementation and Yersinia ruckeri infection Journal of Fish Diseases 36 6 599 606
dc.identifier.uri	http://hdl.handle.net/10550/45020
dc.description.abstract	Gut microbiota (GM) composition of vertebrates are considered to influence health parameters including immunological parameters in the host but knowledge of these issues in fish are sparse. We have performed a 45 day experimental study elucidating effects of dietary supplementation of organic acids (Mera Cid) and immunostimulants on the GM composition of rainbow trout Oncorhynchus mykiss (Walbaum) and investigated its association with blood parameters and disease resistance (against enteric red mouth disease (ERM) caused the bacterium Yersinia ruckeri). A total of 640 fish received either 1) basic fish feed without organic acids or immunostimulants, 2) fish feed with immunostimulants (β6glucans, MOS, nucleotides, lactic acid bacteria, vitamin C and E) but no organic acids, 3) fish feed with immunostimulants and organic acids and 4) fish feed without immunostimulants but with organic acids. Ha lf of the fish (16 groups) were then Y. ruckeri challenged on day 21 and 28 of feeding. Haemoglobin, lysozyme and gut microbiota composition (16S rRNA gene based denaturing gradient gel electrophoresis DGGE) were determined at days 14, 30 and 45. Gut microbiota analyses showed that challenge of fish with Y. ruckeri and feeding with Mera Cid affected the intestinal content.
dc.relation.ispartof	Journal of Fish Diseases, 2013, vol. 36, num. 6, p. 599-606
dc.subject	Peixos
dc.subject	Bacteris patògens
dc.subject	Microbiologia
dc.title	Gut microbiota changes in rainbow trout, Oncorhynchus mykiss (Walbaum), during organic acid feed supplementation and Yersinia ruckeri infection
dc.type	journal article	es_ES
dc.date.updated	2015-07-03T08:00:15Z
dc.identifier.doi	10.1111/jfd.12047
dc.identifier.idgrec	096037
dc.rights.accessRights	open access	es_ES