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Published VersionCC BY V4.0, Open Access
Journal article
Alternative Feed Raw Materials Modulate Intestinal Microbiota and Its Relationship with Digestibility in Yellowtail Kingfish Seriola lalandi
Fishes, Vol.5(2), pp.1-17
2020
Abstract
Gut microbiota plays a crucial role in nutrient digestibility and fish health. This study aimed to investigate the effects of alternative feed raw materials on the bacterial communities in the distal intestine and its relationship with nutrient digestibility in yellowtail kingfish (YTK), Seriola lalandi. Two 4-week digestibility trials were conducted to evaluate fish meal (FM), two sources of poultry by-product meal (PBM-1 & PBM-2), blood meal (BLM), faba bean meal (FBM), corn gluten meal (CGM), soy protein concentrate (SPC) and wheat flour (WH). The nutrient digestibility value was determined using the stripping fecal collection method. Bacterial communities were characterized by high-throughput sequencing based on V3-V4 region of the 16S rRNA gene. The most abundant phylum identified in the present study was Proteobacteria. A significant change in the distal intestine was observed in fish fed diets containing CGM and BLM, characterized by a reduction of species richness and diversity. Additionally, significant correlation between nutrient digestibility and intestinal microbiota was observed. Allivibrio, Vibrio, Curvibacter, Ruminococcaceae, and Clostridium were positively correlated, whereas Ralstonia genus was negatively correlated with nutrient digestibility. This study demonstrated that intestinal microbiota could be a useful tool for evaluating the digestibility of feed raw materials; however, further culture-based study is needed to confirm this observation.
Details
- Title
- Alternative Feed Raw Materials Modulate Intestinal Microbiota and Its Relationship with Digestibility in Yellowtail Kingfish Seriola lalandi
- Authors
- Chinh Dam (Author) - University of the Sunshine Coast, Queensland, School of Science and Engineering - LegacyMark Booth (Author) - Research Institute for Aquaculture No1Igor Pirozzi (Author) - Research Institute for Aquaculture No1Michael Salini (Author) - Ridley Aquafeed Pty LtdRichard Smullen (Author) - Ridley Aquafeed Pty LtdTomer Ventura (Author) - University of the Sunshine Coast, Queensland, School of Science and Engineering - LegacyAbigail Elizur (Author) - University of the Sunshine Coast, Queensland, School of Science and Engineering - Legacy
- Publication details
- Fishes, Vol.5(2), pp.1-17; 17
- Publisher
- MDPI AG
- Date published
- 2020
- DOI
- 10.3390/fishes5020014
- ISSN
- 2410-3888
- Copyright note
- Copyright © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
- Organisation Unit
- School of Science and Engineering - Legacy; School of Science, Technology and Engineering; Centre for Bioinnovation
- Language
- English
- Record Identifier
- 99451321702621
- Output Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web Of Science research areas
- Fisheries
- Marine & Freshwater Biology