Effects of dietary <em>Lactobacillus rhamnosus</em> supplementation on growth performance, antioxidant properties, and gut microbiota alterations on Chinese mitten crab, <em>Eriocheir Sinensis</em>

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dc.contributor.authorYang, Zhenfei
dc.contributor.authorCao, Haiyue
dc.contributor.authorWang, Jianguo
dc.contributor.authorZhang, Huimin
dc.contributor.authorLi, Wei
dc.contributor.authorSong, Lin
dc.contributor.authorTang, Xiaofeng
dc.contributor.authorQi, Fugang
dc.contributor.authorMeng, Pingping
dc.contributor.authorLin, Apeng
dc.contributor.authorFeng, Zhongyu
dc.date.accessioned2024-12-13T18:21:38Z
dc.date.available2024-12-13T18:21:38Z
dc.date.issued2024
dc.description.abstractNumerous studies have demonstrated that <em>Lactobacillus rhamnosus</em> exerts growth-promoting effects in animal husbandry. However, its role in the growth performance of the Chinese mitten crab remains inadequately evaluated. In this study, we aimed to investigate the potential effects of <em>L. rhamnosus</em> on the growth performance, intestinal function, and microenvironment of the Chinese mitten crab. Crabs with an average weight of 0.80 ± 0.12 g were divided into four groups, with the experimental groups receiving dietary supplements of <em>L. rhamnosus</em> at concentrations of 0% (C group), 2% (S-1 group), 5% (S-2 group), and 8% (S-3 group), each containing 10⁹ CFU/g added to the basal diet. The results indicated that the final body weight (FBW), weight gain rate (WGR), and specific growth rate (SGR) of crabs in the S-1 and S-2 groups were significantly higher than those in the control group (<em>P</em> < 0.05). The enzymatic activity of immune-related enzymes, including alkaline phosphatase (AKP), superoxide dismutase (SOD), and catalase (CAT), increased following dietary supplementation with <em>L. rhamnosus</em>. Principal coordinates analysis revealed distinct microbiota compositions between the groups. The alpha diversity indices, including ACE, Chao1, Shannon, and Sobs, were enhanced after dietary supplementation, while the Simpson index showed no significant differences. Statistical analysis demonstrated that including <em>L. rhamnosus</em> in the diet increased the abundance of Proteobacteria and Firmicutes while reducing the abundance of <em>Actinobacteriota</em> in the intestines compared to the control group. Additionally, the abundance of <em>Paracoccus</em> and <em>Thiothrix</em> in the crabs' intestines was elevated. In conclusion, the dietary inclusion of <em>L. rhamnosus</em> improved growth performance, enhanced intestinal microflora, and bolstered non-specific immunity and antioxidant functions in the Chinese mitten crab.
dc.identifier.doihttps://doi.org/10.46989/001c.126148
dc.identifier.issn0792-156X
dc.identifier.urihttps://hdl.handle.net/10524/79519
dc.relation.ispartofThe Israeli Journal of Aquaculture - Bamidgeh
dc.subjectEriocheir Sinensis
dc.subjectLactobacillus rhamnosus
dc.subjectGrowth performance
dc.subjectIntestinal microbiota
dc.titleEffects of dietary <em>Lactobacillus rhamnosus</em> supplementation on growth performance, antioxidant properties, and gut microbiota alterations on Chinese mitten crab, <em>Eriocheir Sinensis</em>
dc.typeArticle
dc.type.dcmiText
prism.volume76

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Volume 76, Issue 4, 2024