The Effect of Dietary Lactic Acid Bacteria on Intestinal Microbiota and Immune Responses of Crucian Carp (Carassius auratus) Under Water Temperature Decrease

Liu, Yuan; Lv, Haoxin; Xu, Li; Zhang, Kun; Yan, Mi; Wang, Min; Guan, Yong Liang; Pang, Huili; Wang, Yanping; Tan, Zhongfang

doi:10.3389/fmicb.2022.847167

Cited by 8 publications

(5 citation statements)

References 87 publications

(108 reference statements)

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“…Lactate is the major product of lactic acid bacteria metabolism (fermentation) found in the gastrointestinal flora. These bacteria may impact the dominance status within the intestinal microbiota and improve the function of the immune system, survival rate and disease resistance [35].…”

Section: Discussionmentioning

confidence: 99%

Growth, Metabolic, Hepatic and Redox Parameters, Digestive Enzymes and Innate Immunity in Mugil liza Fed a Citral-Supplemented Diet

Mori,

Michelotti,

Magnotti

et al. 2024

Fishes

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Mugil liza juveniles (6.69 ± 0.06 g) were subjected to dietary citral (0-control, 0.5, 1.0 and 2.0 mL per kg feed) for 45 days, and its possible effects on zootechnical and metabolic parameters, digestive enzymes, innate immunity, oxidative status and liver damage were evaluated. At the end of the experiment, fish fed 2.0 mL citral per kg feed showed a greater weight gain and protein retention efficiency, as well as enhanced activities of pepsin (stomach) and amylase (intestine) compared with control fish. Citral supplementation decreased liver lipoperoxidation and increased the activities of glutathione peroxidase, glutathione-S-transferase and superoxide dismutase in the gills, liver and brain. The highest level of citral inclusion augmented non-protein thiol content in the brain and gills. Myeloperoxidase activity was lower in fish offered 1.0 and 2.0 mL citral per kg feed. Dietary citral did not influence the plasma levels of aspartate aminotransferase and alanine aminotransferase or the hepatic histology. As it improved growth, the activity of digestive enzymes and general health, dietary citral may be recommended for M. liza at 2.0 mL per kg feed.

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Section: Discussionmentioning

confidence: 99%

Growth, Metabolic, Hepatic and Redox Parameters, Digestive Enzymes and Innate Immunity in Mugil liza Fed a Citral-Supplemented Diet

Mori,

Michelotti,

Magnotti

et al. 2024

Fishes

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“…Limited literature exists regarding the presence of Aurantimicrobium species within fish microbiota and their specific roles within this ecosystem. However, recent reports have highlighted their presence within the intestinal microbiota of various fish species [63][64][65][66].…”

Section: Discussionmentioning

confidence: 99%

Combined Dietary Administration of Chlorella fusca and Ethanol-Inactivated Vibrio proteolyticus Modulates Intestinal Microbiota and Gene Expression in Chelon labrosus

García-Márquez,

Álvarez-Torres,

Cerezo

et al. 2023

Animals

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The use of functional feeds in aquaculture is currently increasing. This study aimed to assess the combined impact of dietary green microalgae Chlorella fusca and ethanol-inactivated Vibrio proteolyticus DCF12.2 (CVP diet) on thick-lipped grey mullet (Chelon labrosus) juvenile fish. The effects on intestinal microbiota and the transcription of genes related to metabolism, stress, and the immune system were investigated after 90 days of feeding. Additionally, the fish were challenged with Aeromonas hydrophila and polyinosinic–polycytidylic acid (poly I:C) to evaluate the immune response. Microbiota analysis revealed no significant differences in alpha and beta diversity between the anterior and posterior intestinal sections of fish fed the control (CT) and CVP diets. The dominant genera varied between the groups; Pseudomonas and Brevinema were most abundant in the CVP group, whereas Brevinema, Cetobacterium, and Pseudomonas were predominant in the CT group. However, microbial functionality remained unaltered. Gene expression analysis indicated notable changes in hif3α, mhcII, abcb1, mx, and tnfα genes in different fish organs on the CVP diet. In the head kidney, gene expression variations were observed following challenges with A. hydrophila or poly I:C, with higher peak values seen in fish injected with poly I:C. Moreover, c3 mRNA levels were significantly up-regulated in the CVP group 72 h post-A. hydrophila challenge. To conclude, incorporating C. fusca with V. proteolyticus in C. labrosus diet affected the microbial species composition in the intestine while preserving its functionality. In terms of gene expression, the combined diet effectively regulated the transcription of stress and immune-related genes, suggesting potential enhancement of fish resistance against stress and infections.

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“…Moreover, the sequence of its 16S rRNA gene presents a relatively high level of similarity with that of Alpinimonas psychrophila (97.2%). However, more recently, there have been reports of this organisms within this intestinal microbiota of Nile tilapia ( Oreochromis niloticus ) and Crucian carp ( Carassius auratus ) [ 54 , 55 ].…”

Section: Discussionmentioning

confidence: 99%

Modulation of gut microbiota, blood metabolites, and disease resistance by dietary β-glucan in rainbow trout (Oncorhynchus mykiss)

et al. 2022

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Background Prebiotics are known to have a positive impact on fish health and growth rate, and β-glucans are among the most used prebiotics on the market. In this study, rainbow trout (Oncorhynchus mykiss) were treated with a β-1,3;1,6-glucan dietary supplement (at a dose of 0 g, 1 g, 10 g, and 50 g β-glucan per kg of feed). After 6 weeks, the effect of the β-glucan was evaluated by determining the changes in the microbiota and the blood serum metabolites in the fish. The impact of β-glucan on the immune system was evaluated through a challenge experiment with the bacterial fish pathogen Yersinia ruckeri. Results The microbiota showed a significant change in terms of composition following β-glucan treatment, notably an increase in the relative abundance of members of the genus Aurantimicrobium, associated with a decreased abundance of the genera Carnobacterium and Deefgea. Furthermore, analysis of more than 200 metabolites revealed that the relative levels of 53 metabolites, in particular compounds related to phosphatidylcholines, were up- or downregulated in response to the dietary supplementation, this included the amino acid alanine that was significantly upregulated in the fish that had received the highest dose of β-glucan. Meanwhile, no strong effect could be detected on the resistance of the fish to the bacterial infection. Conclusions The present study illustrates the ability of β-glucans to modify the gut microbiota of fish, resulting in alteration of the metabolome and affecting fish health through the lipidome of rainbow trout.

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The Effect of Dietary Lactic Acid Bacteria on Intestinal Microbiota and Immune Responses of Crucian Carp (Carassius auratus) Under Water Temperature Decrease

Cited by 8 publications

References 87 publications

Growth, Metabolic, Hepatic and Redox Parameters, Digestive Enzymes and Innate Immunity in Mugil liza Fed a Citral-Supplemented Diet

Growth, Metabolic, Hepatic and Redox Parameters, Digestive Enzymes and Innate Immunity in Mugil liza Fed a Citral-Supplemented Diet

Combined Dietary Administration of Chlorella fusca and Ethanol-Inactivated Vibrio proteolyticus Modulates Intestinal Microbiota and Gene Expression in Chelon labrosus

Modulation of gut microbiota, blood metabolites, and disease resistance by dietary β-glucan in rainbow trout (Oncorhynchus mykiss)

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