Probiotic Modulation of the Gut Microbiota of Fish

Merrifield, Daniel L.; Carnevali, Oliana

doi:10.1002/9781118897263.ch8

Cited by 45 publications

(30 citation statements)

References 125 publications

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“…Several reports exist in fish regarding the microbiota‐modulating effects of dietary modifications (revised by Merrifield and Carnevali ; Ringø et al . ), but the vast majority of these studies were based on culture‐dependent techniques, thus limiting results.…”

Section: Discussionmentioning

confidence: 99%

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Microbiome dynamic modulation through functional diets based on pre- and probiotics (mannan-oligosaccharides andSaccharomyces cerevisiae) in juvenile rainbow trout (Oncorhynchus mykiss)

Gonçalves

Gallardo‐Escárate

2017

J Appl Microbiol

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Section: Discussionmentioning

confidence: 99%

“…Some features known to positively contribute to intestinal microbiota (Denev et al . ; Merrifield and Carnevali ) include a competition for mucosal layer attachment sites (Vine et al . ), the production of inhibitory substances with bactericidal or bacteriostatic actions, competition for available chemicals and energy (De et al .…”

Section: Introductionmentioning

confidence: 99%

Microbiome dynamic modulation through functional diets based on pre- and probiotics (mannan-oligosaccharides andSaccharomyces cerevisiae) in juvenile rainbow trout (Oncorhynchus mykiss)

Gonçalves

Gallardo‐Escárate

2017

J Appl Microbiol

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“…Probiotics administered as dietary supplement, pass across the gut and are able to have an impact on the microbiota, even without colonization of the intestine (Merrifield and Carnevali, 2014). The microbiota influences the mucosal and systemic immune system of fish (Lazado and Caipang, 2014).…”

Section: Discussionmentioning

confidence: 99%

“…Current strategies can include diet supplementation with probiotics or 'live organisms that, when administered in adequate amounts, confer a health benefit on the host' (Food and Agriculture Organization/ WHO, 2002). Probiotics act in complex multifactorial ways, depending on species, strain and host (Lazado and Caipang, 2014), but mostly by gut microbiota modulation (Balcazar et al, 2007;Merrifield and Carnevali, 2014) and their consequent influence on gut mucosal immunity. Probiotics can alter the intestinal immunology and morphology towards a more tolerant and less inflammatory mucosa (Ringø et al, 2007;Lazado and Caipang, 2014), ameliorating the epithelial barrier function (Madsen et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

Dietary probiotic supplementation improves growth and the intestinal morphology of Nile tilapia

Ramos¹,

Batista²,

Pires

et al. 2017

Animal

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Probiotic administration can be a nutritional strategy to improve the immune response and growth performance of fish. The current study aimed to evaluate the effects of a probiotic blend (Bacillus sp., Pediococcus sp., Enterococcus sp., Lactobacillus sp.) as a dietary supplement on growth performance, feed utilization, innate immune and oxidative stress responses and intestinal morphology in juvenile Nile tilapia (Oreochromis niloticus). The probiotic was incorporated into a basal diet at three concentrations: 0 g/kg (A 0 : control), 3 g/kg (A 1 : 1.0 × 10 6 colony forming unit (CFU)/g) and 6 g/kg (A 2 : 2.3 × 10 6 CFU/g diet). After 8 weeks of probiotic feeding, weight and specific growth rate where significantly higher in fish-fed A 1 diet than in fish-fed A 0 . Alternative complement in plasma was significantly enhanced in fish-fed A 2 when compared with A 0 . The hepatic antioxidant indicators were not affected by probiotic supplementation. Villi height and goblet cell counts increased significantly in the intestine of fish-fed A 1 and A 2 diets compared with A 0 . The dietary probiotic supplementation was maintained until 20 weeks of feeding. Then the selected immune parameters, digestive enzymes and apparent digestibility of diets were studied. No effect of probiotic feeding was observed after that longer period supplementation. The dietary supplementation of mixed species probiotic may constitute a valuable nutritional approach towards a sustainable tilapia aquaculture. The improvement of the immune responses and intestinal morphology play an important role in increasing growth performance, nutrient absorption and disease resistance in fish, important outcomes in such a competitive and developing aquaculture sector.

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“…The investigation of pre- and probiotics to overcome these issues has gained substantial research attention in aquaculture with some promising results; yet, studies typically only characterize effects at the level of the host’s systemic physiology (i.e. growth, immunity), ignoring the overall impacts at the microbial level [2]. In addition, results from probiotic studies are confounded by the diversity of species and culture techniques (e.g.…”

Section: Introductionmentioning

confidence: 99%

Ontogenetic Characterization of the Intestinal Microbiota of Channel Catfish through 16S rRNA Gene Sequencing Reveals Insights on Temporal Shifts and the Influence of Environmental Microbes

Peterson²,

et al. 2016

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Aquaculture recently overtook capture fisheries as the largest producer of food fish, but to continue increasing fish production the industry is in search of better methods of improving fish health and growth. Pre- and probiotic supplementation has gained attention as a means of solving these issues, however, for such approaches to be successful, we must first gain a more holistic understanding of the factors influencing the microbial communities present in the intestines of fish. In this study, we characterize the bacterial communities associated with the digestive tract of a highly valuable U.S. aquaculture species, channel catfish Ictalurus punctatus, over the first 193 days of life to evaluate temporal changes that may occur throughout ontogenetic development of the host. Intestinal microbiota were surveyed with high-throughput DNA sequencing of 16S rRNA V4 gene amplicons derived from fish at 3, 65, 125, and 193 days post hatch (dph), while also characterizing the environmental microbes derived from the water supply and the administered diets. Microbial communities inhabiting the intestines of catfish early in life were dynamic, with significant shifts occurring up to 125 dph when the microbiota somewhat stabilized, as shifts were less apparent between 125 to 193 dph. Bacterial phyla present in the gut of catfish throughout ontogeny include Bacteroidetes, Firmicutes, Fusobacteria, and Proteobacteria; with the species Cetobacterium somerae and Plesiomonas shigelloides showing the highest abundance in the catfish microbiota after 3 dph. Comparisons of the gut microbiota to the environmental microbes reveals that the fish gut is maintained as a niche habitat, separate from the overall microbial communities present in diets and water-supply. Although, there is also evidence that the environmental microbiota serves as an inoculum to the fish gut. Our results have implications for future research related to channel catfish biology and culture, and increase our understanding of ontogenetic effects on the microbiota of teleost fish.

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Probiotic Modulation of the Gut Microbiota of Fish

Cited by 45 publications

References 125 publications

Microbiome dynamic modulation through functional diets based on pre- and probiotics (mannan-oligosaccharides andSaccharomyces cerevisiae) in juvenile rainbow trout (Oncorhynchus mykiss)

Microbiome dynamic modulation through functional diets based on pre- and probiotics (mannan-oligosaccharides andSaccharomyces cerevisiae) in juvenile rainbow trout (Oncorhynchus mykiss)

Dietary probiotic supplementation improves growth and the intestinal morphology of Nile tilapia

Ontogenetic Characterization of the Intestinal Microbiota of Channel Catfish through 16S rRNA Gene Sequencing Reveals Insights on Temporal Shifts and the Influence of Environmental Microbes

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