Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/7312
Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: Use of a probiotic to control lactococcosis and streptococcosis in rainbow trout, Oncorhynchus mykiss (Walbaum)
Authors: Brunt, Jason
Austin, Brian
Contact Email: brian.austin@stir.ac.uk
Keywords: Aeromonas sobria
control
lactococcosis
probiotic
rainbow trout
streptococcosis
Issue Date: Dec-2005
Publisher: Wiley-Blackwell
Citation: Brunt J & Austin B (2005) Use of a probiotic to control lactococcosis and streptococcosis in rainbow trout, Oncorhynchus mykiss (Walbaum), Journal of Fish Diseases, 28 (12), pp. 693-701.
Abstract: From a comparison of 125 bacterial isolates recovered from the digestive tract of rainbow trout, Oncorhynchus mykiss, and carp, Cyprinus sp., a culture was obtained which was effective at preventing clinical disease caused by Lactococcus garvieae and Streptococcus iniae when used as a feed additive. The culture, Aeromonas sobria GC2, was incorporated into the feed and fed to rainbow trout (average weight = 20 g) for 14 days at a dose equivalent to 5 × 107 cells g−1 of feed. Whereas the untreated controls experienced losses of 75–100% when challenged intraperitoneally with L. garvieae and S. iniae, the probiotic- treated groups remained healthy with total mortalities of only 0–6%. Formalized and sonicated preparations of GC2 and cell-free supernatant fared less well. The mode of action reflected stimulation of innate immunity, namely an increased number of leucocytes and enhanced phagocytic and respiratory burst ac
Type: Journal Article
URI: http://hdl.handle.net/1893/7312
DOI Link: http://dx.doi.org/10.1111/j.1365-2761.2005.00672.x
Rights: The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.
Affiliation: Heriot-Watt University
Heriot-Watt University

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