Intestinal microbial diversity is higher in Pacific abalone (Haliotis discus hannai) with slower growth rates

Choi, Mi‐Jin; Oh, Young Dae; Kim, Yeo Reum; Lim, Han Kyu; Kim, Jong‐Myoung

doi:10.1016/j.aquaculture.2021.736500

Cited by 27 publications

(23 citation statements)

References 65 publications

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“…The two groups of abalone in this experiment were subjected to the same management, environmental, and nutritional conditions to eliminate additional effects. The intestinal microbiota of all of the abalones were predominated by the phyla Proteobacteria and Tenericutes , which is consistent with previous findings ( Wang et al, 2020 ; Choi et al, 2021 ). Proteobacteria are carbohydrate-fermenting bacteria and a high percentage in the intestines of abalone enhances the ability to utilize carbohydrates and improve production performance ( Elolimy et al, 2019 ).…”

Section: Discussionsupporting

confidence: 92%

“…Its feed cost has been elevated with the industrialized production mode and rising feed prices, constraining further development of the abalone aquaculture industry in China, whose abalone aquaculture production accounts for 90% of the world. Studies on the FE of abalone from the perspective of intestinal microbiota are limited, although other investigations have shown that intestinal microbiota are irreplaceable for the growth and immunity of abalone ( Jing et al, 2012 ; Choi et al, 2021 ). In this study, intestinal microbiota, digestive enzyme activity, and metabolome of the Pacific abalone, Haliotis discus hannai , with high FE (low RFI) and low FE (high RFI) were compared, and their interconnections in the regulation of FE of abalone were explored.…”

Section: Introductionmentioning

confidence: 99%

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Exploring the Intestinal Microbiota and Metabolome Profiles Associated With Feed Efficiency in Pacific Abalone (Haliotis discus hannai)

Shen

et al. 2022

Front. Microbiol.

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Feed efficiency (FE) is critical to the economic and environmental benefits of aquaculture. Both the intestines and intestinal microbiota play a key role in energy acquisition and influence FE. In the current research, intestinal microbiota, metabolome, and key digestive enzyme activities were compared between abalones with high [Residual feed intake (RFI) = −0.029] and low FE (RFI = 0.022). The FE of group A were significantly higher than these of group B. There were significant differences in intestinal microbiota structures between high- and low-FE groups, while higher microbiota diversity was observed in the high-FE group. Differences in FE were also strongly correlated to variations in intestinal digestive enzyme activity that may be caused by Pseudoalteromonas and Cobetia. In addition, Saprospira, Rhodanobacteraceae, Llumatobacteraceae, and Gaiellales may potentially be utilized as biomarkers to distinguish high- from low-FE abalones. Significantly different microorganisms (uncultured beta proteobacterium, BD1_7_clade, and Lautropia) were found to be highly correlated to significantly different metabolites [DL-methionine sulfoxide Arg-Gln, L-pyroglutamic acid, dopamine, tyramine, phosphatidyl cholines (PC) (16:0/16:0), and indoleacetic acid] in the high- and low-FE groups, and intestinal trypsin activity also significantly differed between the two groups. We propose that interactions occur among intestinal microbiota, intestinal metabolites, and enzyme activity, which improve abalone FE by enhancing amino acid metabolism, immune response, and signal transduction pathways. The present study not only elucidates mechanisms of variations in abalone FE, but it also provides important basic knowledge for improving abalone FE by modulating intestinal microbiota.

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Section: Discussionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Exploring the Intestinal Microbiota and Metabolome Profiles Associated With Feed Efficiency in Pacific Abalone (Haliotis discus hannai)

Shen

et al. 2022

Front. Microbiol.

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“…Psychrilyobacter is a strictly anaerobic psychrophilic bacterium inhabiting marine sediments [ 105 ] and reported from gut microbiomes of tunicates [ 106 ], polychaetes [ 107 ], bivalves [ 82 ] as well as gastropods with diverse diet types: the rapa whelk Rapana venosa (predator, [ 108 ]), deep-sea species Rubyspira osteovora (whale bone-eating, [ 89 ]), cultured species Haliotis tuberculata (herbivore, [ 109 ]) and H . discus [ 110 ], the Pacific periwinkle L . keenae (micrograzer, [ 51 ]), and others [ 111 ].…”

Section: Discussionmentioning

confidence: 99%

“…to produce acetate and short-chain fatty acids via pyruvate fermentation [ 105 , 109 , 112 ]. Vibrio and Psychromonas (γ-Proteobacteria) often dominate the gut microbiomes of diverse gastropods, too [ 84 , 89 , 90 , 108 – 110 ]. In contrast to Psychrilyobacter , these bacteria can hydrolyse vegetal and algal polysaccharides such as starch, laminarine, alginate, etc.…”

Section: Discussionmentioning

confidence: 99%

Divergence together with microbes: A comparative study of the associated microbiomes in the closely related Littorina species

et al. 2021

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Any multicellular organism during its life is involved in relatively stable interactions with microorganisms. The organism and its microbiome make up a holobiont, possessing a unique set of characteristics and evolving as a whole system. This study aimed to evaluate the degree of the conservativeness of microbiomes associated with intertidal gastropods. We studied the composition and the geographic and phylogenetic variability of the gut and body surface microbiomes of five closely related sympatric Littorina (Neritrema) spp. and a more distant species, L. littorea, from the sister subgenus Littorina (Littorina). Although snail-associated microbiomes included many lineages (207–603), they were dominated by a small number of OTUs of the genera Psychromonas, Vibrio, and Psychrilyobacter. The geographic variability was greater than the interspecific differences at the same collection site. While the microbiomes of the six Littorina spp. did not differ at the high taxonomic level, the OTU composition differed between groups of cryptic species and subgenera. A few species-specific OTUs were detected within the collection sites; notably, such OTUs never dominated microbiomes. We conclude that the composition of the high-rank taxa of the associated microbiome (“scaffolding enterotype”) is more evolutionarily conserved than the composition of the low-rank individual OTUs, which may be site- and / or species-specific.

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“…Accordingly, it is assumed that animals' growth is closely linked to their intestinal health status (Choi et al, 2021;Sun et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Better intestine health in fast‐growing bullfrogs ( Lithobates catesbeianus ) fed a soybean meal‐based diet than slow‐growing bullfrogs

Tao

Wang

Zhang

et al. 2022

Aquaculture Research

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This study examined the differences in intestinal health between fast-and slowgrowing bullfrogs (Lithobates catesbeianus) fed a soybean meal (SM)-based diet. A total of 108 froglets (26.14 ± 0.21 g) were randomly distributed into three tanks at a density of 36 froglets per tank and fed a SM-based diet for 8 weeks. At the end of the feeding period, four heaviest and four lightest bullfrogs from each tank were captured and considered as fast-growing (FG) and slow-growing (SG) groups. The FG group had significantly higher weight gain than the SG group (p < 0.05). A basic intestinal tissue structure integrity with higher values of jejunal diameter, villus numbers, villus thickness and muscular thickness was observed in the FG group compared with the SG group (p < 0.05). Moreover, lower activity of serum diamine oxidase was detected in FG group than the SG group, which indicated better gut barrier function of froglets in FG group (p < 0.05). However, no significant differences were found in the mRNA expression level of tight junction proteins including occludin and zo-1 in the jejunum, and serum D-lactate concentration between the two groups (p > 0.05). Significantly lower pH values in corpora ventriculi and ileum and higher jejunal protease and amylase activities were found in the FG group than SG group (p < 0.05). Relatively higher expression of anti-inflammatory genes and lower expression of pro-inflammatory genes were found in the FG group; however, the differences were not significant.The abundances of potential probiotics including Akkermansia, Lactobacillus and Prevotellaceae_UCG_001 were higher in the intestinal microflora of FG group compared with the SG group. In conclusion, these findings suggested that higher growth of FG bullfrogs fed the SM-based diet could be attributed to their better intestinal morphological structure and barrier function compared with the SG bullfrogs.

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Intestinal microbial diversity is higher in Pacific abalone (Haliotis discus hannai) with slower growth rates

Cited by 27 publications

References 65 publications

Exploring the Intestinal Microbiota and Metabolome Profiles Associated With Feed Efficiency in Pacific Abalone (Haliotis discus hannai)

Exploring the Intestinal Microbiota and Metabolome Profiles Associated With Feed Efficiency in Pacific Abalone (Haliotis discus hannai)

Divergence together with microbes: A comparative study of the associated microbiomes in the closely related Littorina species

Better intestine health in fast‐growing bullfrogs ( Lithobates catesbeianus ) fed a soybean meal‐based diet than slow‐growing bullfrogs

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