Impact of Dietary Cellobiose on the Fecal Microbiota of Horses.

Journal of Equine Veterinary Science
Nadine PaßlackJürgen Zentek

Abstract

Cellobiose is a disaccharide with potential prebiotic effects, as demonstrated in different animal species, but not yet in horses. It was, therefore, the aim of the present study to evaluate the impact of dietary cellobiose on the fecal microbiota of horses. Eight healthy adult horses and two ponies were included in this study. The animals received a diet without or with 10 g and 20 g cellobiose per day for 14 days each. At the end of the feeding periods, fresh fecal samples were collected to measure bacterial metabolites and the microbial composition. For the microbiota analysis, 16S rRNA gene sequencing was used. Cellobiose was well accepted and tolerated by the animals. The lowest fecal concentrations of D-lactate, propionic acid, i-valeric acid, and total short-chain fatty acids were measured at the dose 10 g cellobiose per horse per day (quadratic effect: P < .05). A dose-dependent increase of the relative abundance of Firmicutes (P = .049), Coriobacteriales (P < .001), and Clostridium (P = .031) could be detected. In addition, a dose-dependent decrease of the relative abundance of Bacteroidetes (P = .035) was observed. In conclusion, the increase of Coriobacteriales and Clostridium indicates a bacterial fermentation of ce...Continue Reading

Citations

Apr 7, 2021·The Veterinary Clinics of North America. Equine Practice·Myriam Hesta, Marcio Costa

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