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Effects of dietary cooked navy bean on the fecal microbiome of healthy companion dogs.


ABSTRACT: BACKGROUND: Cooked bean powders are a promising novel protein and fiber source for dogs, which have demonstrated potential to alter microbial composition and function for chronic disease control and prevention. This study aimed to determine the impact of cooked navy bean powder fed as a staple food ingredient on the fecal microbiome of healthy adult pet dogs. METHODOLOGY/PRINCIPAL FINDINGS: Fecal samples from healthy dogs prior to dietary control and after 4 wk of dietary treatment with macro- and micronutrient matched diets containing either 0 or 25% cooked navy beans (n = 11 and n = 10, respectively) were analyzed by 454-pyrosequencing of the 16S rRNA gene. There were few differences between dogs fed the control and navy bean diets after 4 wk of treatment. These data indicate that there were no major effects of navy bean inclusion on microbial populations. However, significant differences due to dietary intervention onto both research diets were observed (i.e., microbial populations at baseline versus 4 wk of intervention with 0 or 25% navy bean diets). After 4 wk of dietary intervention on either control or navy bean diet, the Phylum Firmicutes was increased and the Phyla Actinobacteria and Fusobacteria were decreased compared to baseline. CONCLUSIONS: No negative alterations of microbial populations occurred following cooked navy bean intake in dogs, indicating that bean powders may be a viable protein and fiber source for commercial pet foods. The highly variable microbial populations observed in these healthy adult pet dogs at baseline is one potential reason for the difficulty to detect alterations in microbial populations following dietary changes. Given the potential physiological benefits of bean intake in humans and dogs, further evaluation of the impacts of cooked navy bean intake on fecal microbial populations with higher power or more sensitive methods are warranted.

SUBMITTER: Kerr KR 

PROVIDER: S-EPMC3770567 | biostudies-other | 2013

REPOSITORIES: biostudies-other

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Effects of dietary cooked navy bean on the fecal microbiome of healthy companion dogs.

Kerr Katherine R KR   Forster Genevieve G   Dowd Scot E SE   Ryan Elizabeth P EP   Swanson Kelly S KS  

PloS one 20130911 9


<h4>Background</h4>Cooked bean powders are a promising novel protein and fiber source for dogs, which have demonstrated potential to alter microbial composition and function for chronic disease control and prevention. This study aimed to determine the impact of cooked navy bean powder fed as a staple food ingredient on the fecal microbiome of healthy adult pet dogs.<h4>Methodology/principal findings</h4>Fecal samples from healthy dogs prior to dietary control and after 4 wk of dietary treatment  ...[more]

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