Gut Microbiome Analysis In Adult Tropical Gars (<i>Atractosteus tropicus</i>)

Méndez-Pérez, Roberto; García-López, Rodrigo; Bautista-López, J. Santiago Bautista-López; Peña-Marín, Emyr Saúl; Martínez‐García, Rafael; Domínguez-Rodríguez, V. I.; Adams, Randy H.; Baltierra-Trejo, Eduardo; Valdés, Carolina Melgar; Moya, Andrés; Álvarez-González, Carlos Alfonso; Gómez-Cruz, Rodolfo

doi:10.1101/557629

Cited by 4 publications

(3 citation statements)

References 117 publications

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“…Another genus Reyranella that is phylogenetically very close to Rhodospirillaceae, also reported to play a crucial role in nitrate reduction from soil and freshwater 60,61 . The bacteria recently been characterized from Tropical gar fish (Atractosteus tropicus) where its positive role on fish adaptation and survival has been described 62 . Paracoccus species identified from turbot (Scophthalmus maximus), European flounder (Platichthys flesus) and wild common dab (Limanda limanda) gut were found strongly correlated to high content of polyunsaturated fatty acids (PUFA), especially docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) that have potential health benefit effects on aquatic animals as well as on humans, especially the role of PUFA in liver and brain function, inflammation, cardiovascular diseases, obesity and diabetes has been widely documented [63][64][65] .…”

Section: Discussionmentioning

confidence: 99%

Lactobacillus acidophilus and L. plantarum improve health status, modulate gut microbiota and innate immune response of marron (Cherax cainii)

Foysal

Fotedar

Siddik

et al. 2020

Sci Rep

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This study aimed to investigate the combined effects of two most potent probiotic bacteria Lactobacillus acidophilus and Lactobacillus plantarum on overall health and immune status of freshwater crayfish, marron under laboratory conditions. A total of 36 marron were distributed into six different tanks and two different feeding groups, control and probiotic-fed group. After acclimation, control group was fed with basal diet while probiotic group was fed 10 9 cfU/mL per kg of bacterial supplemented feed for 60 days. The results showed no significant differences in weight gain, however, probiotic feed significantly enhanced some hemolymph parameters and biochemical composition of tail muscle. Histology data revealed better hepatopancreas health and higher microvilli counts in the marron gut fed probiotic diet. The probiotic bacteria triggered significant shift of microbial communities at different taxa level, mostly those reported as beneficial for crayfish. The probiotic diet also enriched the metabolic functions and genes associated with innate immune response of crayfish. Further correlation analysis revealed significant association of some taxa with increased activity for hemolymph and immune genes. therefore, dietary Lactobacillus supplementation can modulate the overall health and immunity as well as gut microbial composition and interaction network between gut microbiota and immune system in crayfish. Aquaculture has become an important food sector for meeting the overall protein demand for growing population. The global consumption of crustaceans has increased greatly and especially those with live transport abilities are increasingly becoming popular 1-3. Marron (Cherax cainni) is one of the largest freshwater crayfish farmed in Western Australia (WA) that has high nutritive value and widespread consumer preferences 4,5. In addition, long distance live transportation ability of marron further increases its international demand, and thus has become an ideal crayfish species for commercial farming 6,7. However, the production of marron in WA has remained stagnant for a long time 7. Selection of proper diets and maintaining the optimum water quality are the two most crucial factors required for marron farming 5,7. Although no disease outbreaks have yet been reported, the interest and intend of intensification in marron farming can expose marron to possible crayfish pathogens including Vibrio, Aeromonas and Rhodobacter 5,6. In the past, several laboratory based trials have been conducted 3,6-9 , however, finding a suitable diet and identifying the beneficial bacteria that potentially can influence the growth and immune performance of marron has still remained unknown. Towards sustainable development of aquaculture, the use of feed additives including probiotics, prebiotics, synbiotics, parabiotics and phytogenics in crustacean's diet to boost biological indices has gained extensive attention from the researchers and farmers. Probiotics are microorganisms associated with health and immune benefits for the host ...

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Section: Discussionmentioning

confidence: 99%

Lactobacillus acidophilus and L. plantarum improve health status, modulate gut microbiota and innate immune response of marron (Cherax cainii)

Foysal

Fotedar

Siddik

et al. 2020

Sci Rep

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“…Limited studies suggest that Shewanella species may contribute to the synthesis of omega-3 fatty acids in freshwater fish [ 46 ] and the protection of fish from infection of the Betanodavirus [ 47 ] and Vibrio [ 48 ]. The symbiotic growth of Reyranella bacteria in the gut of tropical gar, Atractosteus tropicus , was believed to have positive effects on the survival of adult fish in an adverse environment [ 49 ]. The potential roles of C. aquatile in fish have not been understood despite the strong chitinolytic activity of Chitinilyticum bacteria.…”

Section: Discussionmentioning

confidence: 99%

Improvement of Fish Growth and Metabolism by Oligosaccharide Prebiotic Supplement

Lutz

Taylor

et al. 2022

Aquaculture Nutrition

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Finfish aquaculture is expected to continue to benefit from significantly improved fish diets, which are the source of energy to support the growth and health of fish. Strategies to enhance the transformation rate of dietary energy and protein to fish growth are greatly desired by fish culturists. Prebiotic compounds can be used as supplements to human, animal, and fish diets to populate beneficial bacteria in the gut. The goal of the present study is to identify low-cost prebiotic compounds with high efficacy in increasing the absorption of food nutrients by fish. Several oligosaccharides were evaluated as prebiotics in Nile tilapia (Oreochromis niloticus), one of the most widely cultured species in the world. Several parameters of the fish on different diets were evaluated, including feed conversion ratios (FCRs), enzymatic activities, expression of growth-related genes, and the gut microbiome. Two age groups of fish (30 days old and 90 days old) were used in this study. The results indicated that the addition of xylooligosaccharide (XOS), galactooligosaccharide (GOS), or XOS and GOS combination to the basic fish diet significantly decreased the feed conversion ratio (FCR) of the fish in both age groups. Both XOS and GOS decreased the FCR of 30-day-old fish by 34.4% compared to the fish on the control diet. In the 90-day-old fish group, XOS and GOS decreased the FCR by 11.9%, while the combination of the two prebiotics led to a 20.2% decrease in FCR compared to the control group. The application of XOS and GOS also elevated the production of glutathione-related enzymes and the enzymatic activity of glutathione peroxidase (GPX), indicating the enhancement of antioxidation processes in fish. These improvements were associated with significant changes in the fish gut microbiota. The abundance of Clostridium ruminantium, Brevinema andersonii, Shewanella amazonensis, Reyranella massiliensis, and Chitinilyticum aquatile were upregulated by XOS and GOS supplements. The findings of the present study suggested that the prebiotics would be more effective when they were applied to the younger fish, and the application of multiple oligosaccharide prebiotic compounds could result in a greater growth enhancement. The identified bacteria can be potentially used as probiotic supplements in the future to improve fish growth and feeding efficiency and ultimately reduce the cost of tilapia aquaculture.

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“…and Lactobacillus spp. [ 34 ]. Hybrid fish are indispensable components of fish species and are essential in aquaculture.…”

Section: Introductionmentioning

confidence: 99%

Research Progress of the Gut Microbiome in Hybrid Fish

Cui

Zhang

et al. 2022

Microorganisms

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Fish, including hybrid species, are essential components of aquaculture, and the gut microbiome plays a vital role in fish growth, behavior, digestion, and immune health. The gut microbiome can be affected by various internal and/or external factors, such as host development, diet, and environment. We reviewed the effects of diet and dietary supplements on intestinal microorganisms in hybrid fish and the difference in the gut microbiome between the hybrid and their hybrids that originate. Then, we summarized the role of the gut microbiome in the speciation and ecological invasion of hybrid fish. Finally, we discussed possible future studies on the gut microbiome in hybrid fish, including the potential interaction with environmental microbiomes, the effects of the gut microbiome on population expansion, and fish conservation and management.

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Gut Microbiome Analysis In Adult Tropical Gars (Atractosteus tropicus)

Cited by 4 publications

References 117 publications

Lactobacillus acidophilus and L. plantarum improve health status, modulate gut microbiota and innate immune response of marron (Cherax cainii)

Lactobacillus acidophilus and L. plantarum improve health status, modulate gut microbiota and innate immune response of marron (Cherax cainii)

Improvement of Fish Growth and Metabolism by Oligosaccharide Prebiotic Supplement

Research Progress of the Gut Microbiome in Hybrid Fish

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