Dietary supplementation with microalgae enhances the zebrafish growth performance by modulating immune status and gut microbiota

Applied Microbiology and Biotechnology, Journal Year: 2022, Volume and Issue: 106(2), P. 773 - 788

Published: Jan. 1, 2022

Language: Английский

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Moving towards improved surveillance and earlier diagnosis of aquatic pathogens: From traditional methods to emerging technologies

Reviews in Aquaculture, Journal Year: 2022, Volume and Issue: 14(4), P. 1813 - 1829

Published: March 19, 2022

Abstract Early and accurate diagnosis is key to mitigating the impact of infectious diseases, along with efficient surveillance. This however particularly challenging in aquatic environments due hidden biodiversity physical constraints. Traditional diagnostics, such as visual histopathology, are still widely used, but increasingly technological advances portable next generation sequencing (NGS) artificial intelligence (AI) being tested for early diagnosis. The most straightforward methodologies, based on diagnosis, rely specialist knowledge experience provide a foundation Future computational remote sensing methods, AI image drone surveillance, will ultimately reduce labour costs whilst not compromising sensitivity, they require capital infrastructural investment. Molecular techniques have advanced rapidly last 30 years, from standard PCR through loop‐mediated isothermal amplification (LAMP) NGS approaches, providing range technologies that support currently popular eDNA There now vast potential transformative change driven by developments human diagnostics. Here we compare current surveillance diagnostic those could be used or developed use environment, against three gold ideals high specificity, rapid cost‐effectiveness.

Language: Английский

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Probiotics, Prebiotics, and Synbiotics Utilization in Crayfish Aquaculture and Factors Affecting Gut Microbiota

Microorganisms, Journal Year: 2023, Volume and Issue: 11(5), P. 1232 - 1232

Published: May 7, 2023

Aquaculture is affected by numerous factors that may cause various health threats have to be controlled the most environmentally friendly approaches. In this context, prebiotics, probiotics, and synbiotics are frequently incorporated into organisms' feeding rations ameliorate status of host's intestine, enhancing its functionality physiological performance, confront increasing antimicrobial resistance. The first step in direction understanding complex microbiome system organism order administer optimal supplement, best concentration, correct way. present review, pre-, pro-, as aquaculture additives, together with affecting gut crayfish, discussed, combined their future prospective outcomes. Probiotics constitute non-pathogenic bacteria, mainly focused on energy production efficient immune response; prebiotics fiber indigestible host organism, which promote preferred gastrointestinal tract microorganisms' growth activity towards optimum balance between system's microbiota; whereas combination a blend. Among synbiotics' multiple benefits boosted immunity, increased resistance pathogens, overall welfare promotion. Furthermore, we reviewed intestinal microbiota abundance composition, found influenced plethora factors, including organism's developmental stage, infection diet, environmental conditions, culture methods, exposure toxins. Intestinal microbial communities crayfish exhibit high plasticity, infections leading reduced diversity abundance. addition synbiotic supplementation seems provide better results than probiotics separately; however, there still conflicting regarding concentration.

Language: Английский

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Updated roles of the gut microbiota in exploring shrimp etiology, polymicrobial pathogens, and disease incidence

动物学研究, Journal Year: 2024, Volume and Issue: 45(4), P. 910 - 923

Published: Jan. 1, 2024

is the most extensively cultured shrimp species globally, recognized for its scale, production, and economic value. However, aquaculture plagued by frequent disease outbreaks, resulting in rapid massive mortality. etiological research often lags behind emergence of new diseases, leaving causal agents some diseases unidentified leading to nomenclature based on symptomatic presentations, especially cases involving co- polymicrobial pathogens. Comprehensive data statuses remain limited. In this review, we summarize current knowledge their effects gut microbiome. Furthermore, also propose a workflow integrating primary colonizers, "driver" taxa networks from healthy diseased states, disease-discriminatory taxa, virulence genes identify potential We examine both abiotic biotic factors (e.g., external internal sources specific-disease effects) that influence microbiota, with an emphasis "holobiome" concept common features microbiota response diverse diseases. After excluding confounding factors, provide diagnosis model quantitatively predicting incidence using common-discriminatory irrespective agents. Due conservation functional used designing specific primers, practical strategy applying qPCR-assayed abundances genes. This review updates roles exploring etiology, pathogens, incidence, offering refined perspective advancing health management.

Language: Английский

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Diseases of marine fish and shellfish in an age of rapid climate change

iScience, Journal Year: 2024, Volume and Issue: 27(9), P. 110838 - 110838

Published: Aug. 28, 2024

Language: Английский

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Effects of camel whey protein hydrolysate on growth, nutrient metabolism, and tight junction protein gene expression in Oreochromis niloticus under hypoxia stress

Aquaculture International, Journal Year: 2025, Volume and Issue: 33(2)

Published: Jan. 10, 2025

Language: Английский

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Shrimp disease progression increases the gut bacterial network complexity and abundances of keystone taxa

Aquaculture, Journal Year: 2019, Volume and Issue: 517, P. 734802 - 734802

Published: Dec. 2, 2019

Language: Английский

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Gut–Liver Immune Response and Gut Microbiota Profiling Reveal the Pathogenic Mechanisms of Vibrio harveyi in Pearl Gentian Grouper (Epinephelus lanceolatus♂ × E. fuscoguttatus♀)

Frontiers in Immunology, Journal Year: 2020, Volume and Issue: 11

Published: Nov. 26, 2020

Vibrio harveyi causes vibriosis in nearly 70% of grouper (Epinephelus sp.), seriously limiting culture. As well as directly inhibiting pathogens, the gut microbiota plays critical roles immune homeostasis and provides essential health benefits to its host. However, there is still little information about variations response V. infection grouper. To understand virulence mechanism pearl gentian grouper, we investigated pathological changes, responses, bacterial communities after exposure differently virulent strains. Obvious histopathological changes were detected heart, kidney, liver. In particular, nodules appeared huge numbers cells colonized liver at 12 h postinfection (hpi) with highly harveyi. Although no was gut, simultaneously induced a gut-liver response. expression 8 genes associated cellular processes, including encoding inflammatory cytokines receptors, pattern recognition proteins, markedly by infection, especially strain. also significant community, which Photobacterium increased but Bradyrhizobium, Lactobacillus, Blautia, Faecalibaculum decreased group infected strain, accounting for 82.01% dissimilarity. Correspondingly, four functions related pathogenesis harveyi, whereas involving metabolism genetic processing reduced. These findings indicate that colonizes induces substantially disrupts composition interspecies interactions community fish thereby altering gut-microbiota-mediated inducing death.

Language: Английский

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Meta‐analysis of the use of seaweeds and their extracts as immunostimulants for fish: a systematic review

Reviews in Aquaculture, Journal Year: 2020, Volume and Issue: 13(2), P. 907 - 933

Published: Sept. 25, 2020

Abstract Disease is an enduring threat to aquaculture, with direct costs from outbreaks of more than US$6 billion a year. Efforts reduce antibiotic use in aquaculture have resulted recent shift towards the immunostimulants that boost fish immune systems. Seaweeds are potential source unique because their diverse taxonomy (11,353 species) and bioactives, but there has been no synthesis effects on fish. A systematic review meta‐analysis 142 peer‐reviewed studies was conducted evaluate seaweed innate immunity, resistance (to stress pathogens) growth farmed Overall, our indicated dietary supplementation seaweeds or extracts had substantial positive impacts health compared control groups were comparable currently utilised immunostimulants. Dramatic survival during challenge experiments detected, average 33% higher fed diets included extracts. This study provides broad evidence for benefits supplementing feed reviewed bioactive extracts, including synergistic supplements. However, also highlighted considerable variation among studies, between species, making it difficult extrapolate results beyond individual experiments. Future should focus developing combinations ingredients elucidating mode action through isolation together standardisation experimental conditions, fast‐track supplements aquaculture.

Language: Английский

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Gut Immune System and the Implications of Oral-Administered Immunoprophylaxis in Finfish Aquaculture

Frontiers in Immunology, Journal Year: 2021, Volume and Issue: 12

Published: Dec. 16, 2021

The gastrointestinal immune system plays an important role in homeostasis regulation. It regulates the symbiotic host-microbiome interactions by training and developing host’s innate adaptive immunity. This interaction a vital host defence mechanisms at same time, balancing endogenous perturbations of homeostasis. fish is armed with intricate diffused gut-associated lymphoid tissues (GALTs) that establish tolerance toward enormous commensal gut microbiome while preserving responses against intrusion enteric pathogens. A comprehensive understanding intestinal prerequisite for oral vaccine immunostimulants aquaculture, particularly cultured species. In this review, we outline remarkable features immunity essential components tissue. mechanistic principles underlying antigen absorption uptake through epithelial, subsequent activation series molecular events are reviewed. emphasis on significance administration immunoprophylactics, different potential adjuvants circumvent tolerance. Comprehension pivotal effective vaccines can be delivered orally, which less labour-intensive could improve health facilitate disease management aquaculture industry.

Language: Английский

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