Effects of effective microorganisms on the physiological status, intestinal microbiome, and serum metabolites of Eriocheir sinensis

Li, Quanjie; Yi, Xiangyu; Li, Le; Sun, Yi; Nie, Zhou; Du, Junbao; Cao, Liping; Gao, Jiancao; Xu, Gaosi

doi:10.1007/s10123-023-00375-9

Cited by 2 publications

(4 citation statements)

References 63 publications

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“…Basal diets fermented with probiotics have been extensively studied because of their benefits for increasing nutrient bioavailability and nutritional value (Yun et al 2017;Xie et al 2020). Supplementation with EMs can increase cellular energy sources, decrease protein consumption and oxidative stress, and improve the intestinal microbiome, which is beneficial to the health of Chinese mitten crabs (Li et al 2023). The present study showed that OTU richness and Chao values in the intestines of crabs that received the EM-supplemented FF were lower than those in crabs that were given the non-FF (p < 0.05), indicating that FF diets can decrease the microbial richness and diversity in the crab intestine.…”

Section: Discussionmentioning

confidence: 99%

“…Effective microorganisms (EMs) comprise a type of compound microbial preparation that often contains lactobacillus, photosynthetic bacteria, and yeast, among others (Xu et al 2021). It is generally used as a bioremediator, with action aimed mainly at the environment, and studies have confirmed that EMs are effective in water/ soil treatment, reducing potential pathogens and consequently regulating the intestine in animals (Li et al 2023). Supplementation with EMs is widely used in crustacean culture, especially in regulating water quality (Zhang et al 2022).…”

Section: Introductionmentioning

confidence: 99%

“…Supplementation with EMs is widely used in crustacean culture, especially in regulating water quality (Zhang et al 2022). Additionally, in a recent study, juvenile Chinese mitten crabs were fed a diet containing EMs, and the results showed that EM supplementation can benefit the health of the crabs (Li et al 2023). Studies have shown that fermented feeds (FFs) contain abundant organic acids, amino acids, and small peptides, which can improve the nutritional status, morphology, and microbiota composition of the intestine (Wang et al 2018;Yan et al 2019;Hines et al 2020;Xie et al 2020).…”

Section: Introductionmentioning

confidence: 99%

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The effect of fermented feed (FF) on intestinal, surrounding water, and sediment microbiomes of the Chinese mitten crab Eriocheir sinensis

Wang,

Pan,

Jiang

et al. 2024

N American J Aquac

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Fermented feed (FF) has several significant advantages in aquaculture. However, little is known about the characteristics of intestinal and environmental microbiota in Eriocheir sinensis. This study was conducted to elucidate the relationship between bacterial communities in the intestine of E. sinensis and the surrounding environment, and to compare the bacterial communities in FF and non‐FF diet modes, using 16S rRNA high‐throughput sequencing technology. Results showed fermented feed diets mainly influence alpha diversity of intestinal microbiomes, but can affect microbial community structures of beta diversity in water and sediment. Compared to water and sediment, crab intestines had the lowest operational taxonomic unit (OTU) richness and bacterial community diversity. OTU richness and Chao values were lower in the intestines of crabs fed FF than in those fed non‐FF. No significant differences were observed in the bacterial diversity and OTU richness of water and sediment between the two feeding modes. The bacterial community structures were significantly different among the three environments. Tenericutes, Proteobacteria, and Actinobacteria were the most abundant phyla in the crab intestine, sediment, and water, respectively. Bacterial functions were also difference among three different environments. The proportions of nitrate reduction and fermentation, nitrification and sulfate respiration, chemoheterotrophy and aerobic chemoheterotrophy were higher in the intestine, sediment and water of fermented feeds feeding mode, respectively. These results will help us devise dietary strategies to steer the crab intestinal microbiota and provide guidance for sustainable crab culture practices.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The effect of fermented feed (FF) on intestinal, surrounding water, and sediment microbiomes of the Chinese mitten crab Eriocheir sinensis

Wang,

Pan,

Jiang

et al. 2024

N American J Aquac

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“…This morphological transformation is a critical period in the life cycle of Eriocheir sinensis , marking a significant transition in habitat and lifestyle [ 9 ]. Understanding the changes in gut microbiota during this period could provide insights into how these organisms adapt to new environments and the role of microbiota in their development and survival [ 10 , 11 ]. However, despite the significant habitat and developmental morphological changes during this particular stage, it has received little attention.…”

Section: Introductionmentioning

confidence: 99%

Early Succession of Community Structures and Biotic Interactions of Gut Microbes in Eriocheir sinensis Megalopa after Desalination

Xue,

Wu,

et al. 2024

Microorganisms

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As an enduring Chinese freshwater aquaculture product, the Eriocheir sinensis has a high economic value and is characterized by a catadromous life style that undergoes seawater–freshwater migration. However, little is known about their gut microbial status as they move from saltwater to freshwater acclimatization. Here, we sampled and cultivated Eriocheir sinensis megalopa from three aquaculture desalination ponds and investigated their gut microbiota diversity, community structures and biotic interactions from megalopa stage to the first juvenile stage after desalination for 9 days. Our results revealed that during the transition from megalopa to the first juvenile in Eriocheir sinensis, a significant change in gut microbial composition was observed (for instance, changes in relative abundance of dominant phyla), which was, however, not influenced by different sampling sites. The species diversity (such as the richness) of the gut microbiota showed a hump-shaped pattern along the succession. However, the compositional differences of the gut microbes showed constantly increasing patterns during the succession after freshwater adaption for all three sampling sites. Further co-occurrence analysis also showed that the complexity of the ecological networks in gut microbes was significantly enhanced during the development, such as increasing numbers of network links, connectivity and modularity, and was confirmed by decreasing average path length and proportions of negative links. Taken together, the differences in community structures and biological interactions of gut microorganisms were more pronounced in Eriocheir sinensis megalopa during desalination than in diversity and species compositions. This implies that the gut microbes of Eriocheir sinensis megalopa would become more robust and adaptive during the developmental process.

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Effects of effective microorganisms on the physiological status, intestinal microbiome, and serum metabolites of Eriocheir sinensis

Cited by 2 publications

References 63 publications

The effect of fermented feed (FF) on intestinal, surrounding water, and sediment microbiomes of the Chinese mitten crab Eriocheir sinensis

The effect of fermented feed (FF) on intestinal, surrounding water, and sediment microbiomes of the Chinese mitten crab Eriocheir sinensis

Early Succession of Community Structures and Biotic Interactions of Gut Microbes in Eriocheir sinensis Megalopa after Desalination

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