Gut histology, immunology and the intestinal microbiota of rainbow trout, <i>Oncorhynchus mykiss</i>
 (Walbaum), fed process variants of soybean meal

Bruce, Timothy J.; Neiger, Regg D.; Brown, Michael L.

doi:10.1111/are.13480

Cited by 52 publications

(38 citation statements)

References 72 publications

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“…Similar results were also found in other fish species, such as rainbow trout (Oncorhynchus mykiss Walbaum) [36], European sea bass (Dicentrarchus labrax) [37] and Atlantic Salmon (S. salar) [31].…”

Section: Discussionsupporting

confidence: 85%

Comparative study on the effects of different feeding habits and diets on intestinal microbiota in Acipenser baeri Brandt and Huso huso

Xing

et al. 2019

Preprint

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Background: Siberian sturgeon ( Acipenser baeri Brandt) and Beluga sturgeon ( Huso huso ) are two important commercial fish in China, and the feeding habits of them are very different. Diets and feeding habits are two significant factors to affect the gastrointestinal microbiota in ﬁsh. The intestinal microbiota has been reported to play a key role in nutrition and immunity. However, it is rarely reported about the relationship between the intestinal microbiota and feeding habits/diets on different Acipenseridae fish. This study is to comparative analysis of gut microbial community in Siberian sturgeon and Beluga sturgeon fed with the same diet/Beluga sturgeon fed with different diets in order to determine the effects of different feeding habits/diets on the fish intestinal microbiota. Results: According to the experimental objectives, BL and BH groups were Beluga sturgeon ( Huso huso ) fed with low fishmeal diet and high fishmeal diet, respectively. SH group represented Siberian sturgeon ( Acipenser baeri Brandt) fed with the same diet as BH group. After 16 weeks feeding trial, the intestinal microbiota was examined by 16S rRNA high-throughput sequencing technology. On the phylum level, Proteobacteria and Bacteroidetes were signiﬁcantly higher in BL group than BH group, and Cyanobacteria showed the opposite trend. Compared with BH group, Proteobacteria and Firmicutes were signiﬁcantly increased in SH group, whereas Cyanobacteria were clearly decreased. At the genus level, Pseudomonas and Citrobacter in BL group were signiﬁcantly higher comparing with BH group, while Bacillus , Luteibacter , Staphylococcus and Oceanobacillus was lower in BH group than SH group. Conclusions: Alpha and beta diversities indicated that the intestinal microﬂora were significant difference between Siberian sturgeon and Beluga sturgeon when they fed with the same diet. Meanwhile, Beluga sturgeon fed with low fishmeal diet can increase the species diversity of intestinal microbiota than it fed with high fishmeal diet. Therefore, feeding habits clearly affected the gastrointestinal microbiota of sturgeons. Moreover, the impact of changes in food on the gut microbiota of sturgeons should be taken into consideration during the process of sturgeon aquaculture.

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Section: Discussionsupporting

confidence: 85%

Comparative study on the effects of different feeding habits and diets on intestinal microbiota in Acipenser baeri Brandt and Huso huso

Xing

et al. 2019

Preprint

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show abstract

“…For example, Desai et al () found that, in comparison to dietary fishmeal, dietary soybean meal (300 g/kg) was associated with a higher Firmicutes:Proteobacteria ratio. However, no significant differences were observed in the Firmicutes composition between the fishmeal and soybean meal groups in rainbow trout (Bruce et al, ).…”

Section: Discussionmentioning

confidence: 98%

“…As found in some previous studies, in the current study, microbiota diversity appeared to be dynamic within the groups. Compared to dietary fishmeal, significant differences in both the alpha and beta diversity indices of the microbiota of rainbow trout were induced by dietary soybean meal (Bruce, Neiger, & Brown, ). However, this was not the case in a study of the Atlantic salmon Salmo salar microbiota, in which soybean meal could have increased the transient bacteria and decreased the adherent species, but could not change the microbiota community structure (Refstie et al, ).…”

Section: Discussionmentioning

confidence: 99%

Effect of dietary soybean meal associated with feeding time on the growth performance and intestinal microbiota composition of northern snakehead

et al. 2019

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Fishmeal has placed increasing pressure on the cost of aquafeeds and wild fish stocks; therefore, plant-based protein sources have attracted more and more attention because of their relative competitive prices and availability. For example, using soybean meal to replace 27.3% fishmeal has been proven to be an effective way to reduce the cost of aquafeeds while maintaining the growth Abstract A 63-day growth trial was conducted with northern snakehead Channa argus to evaluate how rapidly its growth performance and how reproducibly its gut microbiota respond to different dietary protein sources. Four diets were formulated with different levels of soybean meal as a replacement for fishmeal (0%, 25%, 50% and 75%). Each diet was fed to three replicates of juvenile C. argus (30 juveniles per replicate, initial weight 8.65 ± 0.25 g) to produce groups G1, G2, G3 and G4 respectively. During this trial, survival rate, growth performance and intestinal microbiota composition were determined on days 9, 21 and 63. At day 9, there was no effect of the dietary soybean meal on the final weight (Wt), weight gain (WG) and specific growth rate (SGR) between the four groups (p > 0.05). However, at day 21 (p < 0.05), they were significantly lower in G4 fish than that in G1 and G2. The highest Wt, WG and SGR were found in G1 and G2 fish, the lowest growth was found in G4 fish at day 63 (p < 0.05). Furthermore, higher operational taxonomic units (OTUs) and alpha diversity were found in G4. With the dietary soybean level increased, the proportion of Firmicutes, Bacteroidetes and Verrucomicrobia, as well as some genera of bacteria (Carnobacterium, Cetobacterium, Planctomyces, Shewanella and Thermomonas) significantly increased in the G3 and G4 fish (p < 0.05). However, the OTUs, Chao index, and the proportion of Firmicutes and some genera (Acinetobacter, Bacillus and Geobacillus) in G4 fish were significantly higher at days 21 and 63 than that at day 9 (p < 0.05).Taken together, in response to dietary soybean meal levels, dynamic and significant changes in microbiota occurred, which then ultimately attained a new equilibrium. K E Y W O R D Sdynamic changes, feeding time, growth performance, microbiota composition, northern snakehead, soybean meal level

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“…In a recent study (Michl et al, 2017), this index was significantly lower in trout fry fed a diet devoid of marine protein sources, compared to fish fed diets including such ingredients, at least from day 54 to day 93 after start feeding. Bioprocessed soybean meal high dietary inclusion decreased richness indices in the faecal samples from the distal intestine of rainbow trout, compared to a control group with fish meal as main protein source (Bruce, Neiger, & Brown, 2018). Fish meal may also deeply influence the bacterial community, as evidenced in the caecal microbiota of broiler chickens (Wu, Stanley, Rodgers, Swick, & Moore, 2014).…”

Section: Overall Diversity and Dissimilarity Of The Gut Microbiota mentioning

confidence: 99%

Intestinal microbiota in rainbow trout,Oncorhynchus mykiss, fed diets with different levels of fish-based and plant ingredients: A correlative approach with some plasma metabolites

et al. 2018

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The shortage of fish meal and fish oil has led to demonstrate the feasibility of omitting marine ingredients from the diet of rainbow trout. This complete suppression was further studied in the present experiment. Plasma markers indicated that the metabolism was deeply affected in trout fed plant ingredients. The pyrosequencing of reverse transcripts of partial 16S ribosomal RNA revealed the composition of the active bacterial community associated with intestinal mucosa. Most differences appeared between trout fed either a marine diet or a commercial‐like diet with large amounts of plant protein sources and oil. One taxonomic unit of Cetobacterium sp. dominated this microbiota, the overall composition of which was highly variable amongst individuals. This variability in trout fed without marine ingredients was less than in the other dietary groups. At the individual level, the relative prevalence of some bacteria correlated with the level of plasma markers, in particular two distinct taxonomic units of the genus Clostridium, which correlated either with plasma glucose or with several spectral regions containing tyrosine and phenylalanine resonances, detected by 1H‐NMR profiling. Such correlations deserve further investigation for identifying the functional roles of intestinal microbiota.

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Gut histology, immunology and the intestinal microbiota of rainbow trout, Oncorhynchus mykiss (Walbaum), fed process variants of soybean meal

Cited by 52 publications

References 72 publications

Comparative study on the effects of different feeding habits and diets on intestinal microbiota in Acipenser baeri Brandt and Huso huso

Comparative study on the effects of different feeding habits and diets on intestinal microbiota in Acipenser baeri Brandt and Huso huso

Effect of dietary soybean meal associated with feeding time on the growth performance and intestinal microbiota composition of northern snakehead

Intestinal microbiota in rainbow trout,Oncorhynchus mykiss, fed diets with different levels of fish-based and plant ingredients: A correlative approach with some plasma metabolites

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