The effect of fishmeal inclusion and prebiotic supplementation on the hindgut faecal microbiota of farmed Tasmanian Atlantic salmon (Salmo salar L.)

Christina Neuman; Eva Hatje; R Smullen; J P Bowman; Mohammad Katouli

doi:10.1111/jam.13930

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The effect of fishmeal inclusion and prebiotic supplementation on the hindgut faecal microbiota of farmed Tasmanian Atlantic salmon (Salmo salar L.)

Journal article

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The effect of fishmeal inclusion and prebiotic supplementation on the hindgut faecal microbiota of farmed Tasmanian Atlantic salmon (Salmo salar L.)

Christina Neuman, Eva Hatje, R Smullen, J P Bowman and Mohammad Katouli

Journal of Applied Microbiology, Vol.125(4), pp.952-963

2018

DOI: https://doi.org/10.1111/jam.13930

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Abstract

aquaculture

atlantic salmon

fishmeal

gut microbiota

LAB

metabolic capacity

prebiotic

Aims Factors such as seasonal temperature and diet components e.g. fishmeal (FM) inclusion, can influence the composition of the gut microbiota of fish. In this study we examined changes in the gut bacterial populations, in particular lactic acid bacteria (LAB), of farmed Tasmanian Atlantic salmon in response to different diets, during periods of higher water temperature. Methods and Results Between December 2011 and March 2012 hindgut faecal samples were collected from Atlantic salmon from a commercial fish farm in south of Hobart, Tasmania, fed with one of four trial diets containing either high or low FM inclusion levels with or without prebiotics. Overall there was little difference in the cultivatable bacterial populations in response to varying levels of FM and prebiotic supplementation, with LAB counts decreasing in response to increased water temperatures. However, it was observed that the high FM diet supported the presence of LAB in January, when these were not detected in the low FM diets. Conclusions Our study indicates that the inclusion of higher amounts of FM rather than the addition of prebiotics has a greater effect on LAB colonization of the gut in Atlantic salmon. Significance and Impact of the Study This study highlights the importance of the new fish feeds for promoting salmon health in aquaculture industry.

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Title: The effect of fishmeal inclusion and prebiotic supplementation on the hindgut faecal microbiota of farmed Tasmanian Atlantic salmon (Salmo salar L.)
Authors: Christina Neuman (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Eva Hatje (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
R Smullen (Author) - Ridley Aquafeed Pty Ltd
J P Bowman (Author) - University of Tasmania
Mohammad Katouli (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Publication details: Journal of Applied Microbiology, Vol.125(4), pp.952-963
Publisher: Wiley-Blackwell Publishing Ltd.
Date published: 2018
DOI: 10.1111/jam.13930
ISSN: 1364-5072
Organisation Unit: School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland; GeneCology Research Centre - Legacy; School of Health and Sport Sciences - Legacy; School of Science, Technology and Engineering; Centre for Bioinnovation
Language: English
Record Identifier: 99450787102621
Output Type: Journal article

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Collaboration types: Domestic collaboration
Web Of Science research areas: Biotechnology & Applied Microbiology; Microbiology