Rumen Microbes – Prevotella ruminicola

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​This featured microbe is Prevotella ruminicola. Prevotella are one of the largest groups of bacteria within the rumen, and are found within the gut of many species.

Click the image hotspots to learn more about this featured microbe.

This interactive image was created Emily Melchoir

a brown cow licking a black and white cow
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calf looking through a fence

​P. ruminicola is one of the major proteolytic bacteria in the rumen, breaking down protein from feedstuffs and then resynthesizing bacterial protein from ammonia and large peptides. (Image provided from

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a pile of feedstuffs

​P. ruminicola contributes significantly to the degradation of starches (such as corn silage and other grains) within the rumen. When cattle are fed grains in a feedlot operation, P. ruminicola plays a large role in the continued health of the animal. (Photo provided by the University of Wisconsin) 

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magnifying glass showing microscopic bacteria in the rumen of cattle

​Succinate is the major fermentation end-product of P. ruminicola, which will then be utilized to produce the volatile fatty acid propionate, a glucose precursor.

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microscopic image of bacteria

​P. ruminicola are among the most predominant gram-negative bacteria in the rumen. (Photo courtesy of TIGR)

Follow this link to view all of the interactive presentations for the Rumen Microbes series.