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Management of dog sperm parameters and gut microbiota composition with Lactobacillus rhamnosus supplementation

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Abstract

The effects of probiotics supplementation on the reproductive function have been evaluated in many species, but no study has evaluated the changes in the gut microbiome along with the sperm quality changes simultaneously. This study evaluated the effects of dietary supplementation with probiotics on the gut microbiome, sperm quality and gene expression, along with possible correlations between these parameters in dogs. The dogs were supplemented with Lactobacillus rhamnosus for six weeks, and fecal and semen samples were collected at 0, 3, and 6 weeks. Fecal samples were assessed using 16S Metagenomic Sequencing for gut microbiome analysis; and semen samples were analyzed using computer-assisted sperm analysis, DNA and acrosome integrity assessment, viability and morphology assessment, and real-time PCR. The analyses suggested that probiotic supplementation improved kinematic parameters, viability, DNA and acrosome integrity, and morphology of sperms. The mRNA levels of genes associated with fertility, DNA repair and integrity, and antioxidation were also upregulated. The sperm parameters were positively correlated with the relative abundance of Actinobacteria, Allobaculum, Phascolarctobacterium and Catenibacterium, and negatively correlated with Faecalibacterium and Streptococcus. Taken together, the sperm quality enhancement through the gut–testis axis may be due to a change in the gut microorganisms populations.

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Data availability

All data generated and/or analyzed during this study are included in this published article and its supplementary information files.

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Acknowledgments

The authors would like to thank the dog owner who agreed to participate in the study and helped us during every visit.

Funding

This study was supported by a cooperative research program of Rural Development Administration (#PJ014786012022).

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Authors and Affiliations

Authors

Contributions

MJK and FYM: Conceptualization, data curation, investigation, methodology, and visualization, MJK, FYM, and IY: writing – review & editing, MJK and FYM: Formal analysis and validation, MJK: supervision, MJK, HKP: Funding acquisition, project administration and resources, FYM: Writing – original draft. All authors contributed to the article and approved the submitted version.

Corresponding author

Correspondence to Min Jung Kim.

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Ethics approval and consent to participate

All the experiments were approved and conducted in accordance with the recommendations described in “The Guide for the Care and Use of Laboratory Animals” published by the Institutional Animal Care and Use Committee (IACUC) of Seoul National University (approval number; SNU-200409-3-1). This study is in accordance with ARRIVE guidelines (https://arriveguidelines.org). Written informed consent form was obtained from the owners of the animals before sample collection.

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Not applicable.

Competing interests

Authors Feriel Yasmine Mahiddine, Inhwan You, Heekee Park and Min Jung Kim are/were employed by Mjbiogen Corp. The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

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Mahiddine, F.Y., You, I., Park, H. et al. Management of dog sperm parameters and gut microbiota composition with Lactobacillus rhamnosus supplementation. Vet Res Commun 47, 1629–1640 (2023). https://doi.org/10.1007/s11259-023-10116-y

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  • DOI: https://doi.org/10.1007/s11259-023-10116-y

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