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Fishes
Special Issues
Advances in Rainbow Trout
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Advances in Rainbow Trout

A special issue of Fishes (ISSN 2410-3888).

Deadline for manuscript submissions: 20 September 2024 | Viewed by 436

Special Issue Editor

Dr. Changan Wang

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Guest Editor
Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin, China
Interests: aquaculture nutrition

Special Issue Information

Dear Colleagues,

Rainbow trout (Oncorhynchus mykiss) holds a distinguished position in the realm of freshwater fisheries, aquaculture and ecological research. As a species of paramount importance across the globe, their adaptability and economic value underline their significance in both natural habitats and controlled environments. This Special Issue aims to encapsulate the multifaceted dimensions of rainbow trout research, ranging from genetic enhancements, disease resistance and nutritional advancements to sustainable aquaculture practices. Through a curated selection of cutting-edge research articles, we aspire to shed light on the latest scientific breakthroughs that are setting new frontiers in the study and cultivation of rainbow trout. Our objective is to provide a comprehensive overview that not only advances the current body of knowledge, but also inspires innovative approaches to address the ongoing challenges faced in rainbow trout research and aquaculture. We welcome contributions that explore novel methodologies, interdisciplinary studies and reviews that forecast the future directions of rainbow trout studies.

Dr. Changan Wang
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Fishes is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • rainbow trout
  • genetics
  • aquaculture technique
  • disease resistance
  • environmental adaptability
  • nutritional requirements
  • sustainable practices
  • ecological impact
  • genetic engineering
  • conservation strategies
  • aquatic ecosystems

Published Papers (1 paper)

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Research

22 pages, 4002 KiB  
Article
Enhancing Growth and Intestinal Health in Triploid Rainbow Trout Fed a Low-Fish-Meal Diet through Supplementation with Clostridium butyricum
by Chang’an Wang, Fangyuan Li, Di Wang, Shaoxia Lu, Shicheng Han, Wei Gu, Haibo Jiang, Zhuang Li and Hongbai Liu
Fishes 2024, 9(5), 178; https://doi.org/10.3390/fishes9050178 - 14 May 2024
Viewed by 332
Abstract
This study evaluates the effects of dietary Clostridium butyricum on growth performance and intestinal health in triploid rainbow trout (Oncorhynchus mykiss). Administered in a 12-week trial, five isonitrogenous and isolipidic feeds contained different C. butyricum levels [G1 (0), G2 (1.6 × [...] Read more.
This study evaluates the effects of dietary Clostridium butyricum on growth performance and intestinal health in triploid rainbow trout (Oncorhynchus mykiss). Administered in a 12-week trial, five isonitrogenous and isolipidic feeds contained different C. butyricum levels [G1 (0), G2 (1.6 × 106 CFU/g), G3 (1.2 × 107 CFU/g), G4 (1.1 × 108 CFU/g), and G5 (1.3 × 109 CFU/g)]. Significant enhancements in growth performance, including improved feed conversion ratios and specific growth rates in the G4 group, were indicative of enhanced nutrient utilization, corroborated by optimal digestive enzyme activity levels. Antioxidant capabilities were also enhanced in the G4 group, indicated by increased serum superoxide dismutase and catalase activities, along with a significant decrease in malondialdehyde levels. Gut microbiota analysis indicated a probiotic concentration-dependent modulation of microbial communities, with a marked enrichment in beneficial bacterial phyla like Firmicutes in the G4 group. This microbial shift correlated with significant downregulations in immune-related gene expressions, including interleukins (IL-1β, IL-8), NF-κB, MyD88, and TNF-α, highlighting an activated immune response. Correspondingly, serum lysozyme and immunoglobulin M contents were significantly elevated in the G4 group. Challenge tests with Aeromonas salmonicida exhibited the higher disease resistance of fish fed the G4 diet. In conclusion, the study shows the potential of dietary C. butyricum, especially at 1.1 × 108 CFU/g, in enhancing the growth, health, and disease resistance of triploid rainbow trout through modulating gut microflora and stimulating immune responses. Full article
(This article belongs to the Special Issue Advances in Rainbow Trout)
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