ArticleJournal of animal science and biotechnology2025
Probiotic efficacy of Cetobacterium somerae (CGMCC No. 28843): promoting intestinal digestion, absorption, and structural integrity in juvenile grass carp (Ctenopharyngodon idella).
Article in Journal of animal science and biotechnology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Life-Cycle Diphenyl Phosphate (DPhP) Exposure Reveals Sex-Differential Functional Alterations in the Zebrafish Gut Microbiota.Biology · 2026Article
- Probiotic Potential of Indigenous Cetobacterium somerae R9 in Mud Crab (Scylla paramamosain).Probiotics and antimicrobial proteins · 2026Article
- Vitamin KJournal of animal science and biotechnology · 2026Article
- Rosemary-derived triterpene acids improve growth and lipid metabolism in juvenile grass carp (Ctenopharyngodon idella) through the gut-liver axis by tissue-specifically regulating the farnesoid X receptor.Journal of animal science and biotechnology · 2026Article
- Cetobacterium somerae as a microbial correlate of improved muscle quality after intestinal microbiota transplantation in Yellow River carp (Cyprinus carpio).NPJ biofilms and microbiomes · 2026Article
- Gut T cell-microbiota crosstalk orchestrates antibacterial immunity and mucosal homeostasis in teleost.Microbiome · 2026Article
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Authors and funding
12 authors.
Funding
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Abstract
backgroundCetobacterium somerae, a symbiotic microorganism resident in various fish intestines, is recognized for its beneficial effects on fish gut health. However, the mechanisms underlying the effects of C. somerae on gut health remain unclear. In this experiment, we investigated the influence of C. somerae (CGMCC No.28843) on the growth performance, intestinal digestive and absorptive capacity, and intestinal structural integrity of juvenile grass carp (Ctenopharyngodon idella) and explored its potential mechanisms.
methodsA cohort of 2,160 juvenile grass carp with an initial mean body weight of 11.30 ± 0.01 g were randomly allocated into 6 treatment groups, each comprising 6 replicates (60 fish per replicate). The experimental diets were supplemented with C. somerae at graded levels of 0.00 (control), 0.68 × 10⁹, 1.35 × 10⁹, 2.04 × 10⁹, 2.70 × 10⁹, and 3.40 × 10⁹ cells/kg feed. Following a 10-week experimental period, biological samples were collected for subsequent analyses.
resultsDietary supplementation with C. somerae at 1.35 × 10⁹ cells/kg significantly enhanced growth performance, intestinal development, and nutrient retention rate in juvenile grass carp (P < 0.05). The treatment resulted in increased intestinal acetic acid concentration and enhanced activities of digestive enzymes and brush border enzymes (P < 0.05). Furthermore, it reduced intestinal permeability (P < 0.05), preserved tight junctions (TJ) ultrastructural integrity, and increased the expression of TJ and adherens junctions (AJ) biomarkers at both protein and transcriptional levels (P < 0.05). Mechanistically, these effects may be correlated with enhanced antioxidant capacity and coordinated modulation of the RhoA/ROCK, Sirt1, and PI3K/AKT signaling pathways. The appropriate supplementation levels, based on weight gain rate, feed conversion ratio, the activity of serum diamine oxidase and the content of lipopolysaccharide, were 1.27 × 10⁹, 1.27 × 10⁹, 1.34 × 10⁹ and 1.34 × 10⁹ cells/kg, respectively.
conclusionsC. somerae improved intestinal digestive and absorptive capacity of juvenile grass carp, maintained intestinal structural integrity, and thus promoted their growth and development. This work demonstrates the potential of C. somerae as a probiotic for aquatic animals and provides a theoretical basis for its utilization in aquaculture.
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