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๐Ÿพ Exploring microbiota & immunity in senior dogs

2 Sept 2025

Supplementation of a new combination of prebiotic and postbiotic shapes fecal microbiota of old dogs while influencing immune parameters

In this 77-day study, healthy senior dogs received a dietary mixture of short-chain fructo-oligosaccharides + yeast fractions (scFOS+), and their fecal microbiota and immune parameters were assessed following Lyme vaccination.


๐Ÿ”Ž Key findings:

ยท scFOS+ supplementation clearly modulated the microbiota, increasing beneficial taxa such as Megamonas, Phascolarctobacterium, Bacteroidaceae and Fusobacterium.

ยท A novel ASV index suggested that scFOS+ supports a gut environment favoring short-chain fatty acid producers.

ยท Functional predictions (PICRUSt2) indicated enhanced propionate & acetate production, vitamin biosynthesis (B2, B5, B9), and stimulation of metabolic pathways.

ยท Correlations were found between several microbial taxa and IgA/IgG immune responses, highlighting Megamonasand Phascolarctobacterium as genera of interest.


๐Ÿ‘‰ In summary, scFOS+ emerges as a promising candidate to support healthy aging in dogs through microbiota-driven effects. Future metabolomics and mechanistic studies will further clarify the underlying pathways.


๐Ÿ‘‡ Read the full paper here below

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