Microbiome Responses to Fecal Microbiota Transplantation in Cats with Chronic Digestive Issues

Author:

Rojas Connie A.12,Entrolezo Zhandra3,Jarett Jessica K.3,Jospin Guillaume3,Kingsbury Dawn D.3,Martin Alex3,Eisen Jonathan A.12ORCID,Ganz Holly H.3

Affiliation:

1. Genome Center, University of California, Davis, CA 95616, USA

2. Department of Evolution and Ecology, University of California, Davis, CA 95616, USA

3. AnimalBiome, Oakland, CA 94609, USA

Abstract

There is growing interest in the application of fecal microbiota transplants (FMTs) in small animal medicine, but there are few published studies that have tested their effects in the domestic cat (Felis catus). Here we use 16S rRNA gene sequencing to examine fecal microbiome changes in 46 domestic cats with chronic digestive issues that received FMTs using lyophilized stool that was delivered in oral capsules. Fecal samples were collected from FMT recipients before and two weeks after the end of the full course of 50 capsules, as well as from their stool donors (N = 10), and other healthy cats (N = 113). The fecal microbiomes of FMT recipients varied with host clinical signs and dry kibble consumption, and shifts in the relative abundances of Clostridium, Collinsella, Megamonas, Desulfovibrio and Escherichia were observed after FMT. Overall, donors shared 13% of their bacterial amplicon sequence variants (ASVs) with FMT recipients and the most commonly shared ASVs were classified as Prevotella 9, Peptoclostridium, Bacteroides, and Collinsella. Lastly, the fecal microbiomes of cats with diarrhea became more similar to the microbiomes of age-matched and diet-matched healthy cats compared to cats with constipation. Overall, our results suggest that microbiome responses to FMT may be modulated by the FMT recipient’s initial presenting clinical signs, diet, and their donor’s microbiome.

Funder

AnimalBiome

Publisher

MDPI AG

Subject

General Veterinary

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