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Oxalobacter formigenes gen. nov., sp. nov.: oxalate-degrading anaerobes that inhabit the gastrointestinal tract

The new genus and species, Oxalobacter formigenes, are inhabitants of the rumen and also of the large bowel of man and other animals where their actions in destruction of oxalic acid may be of considerable importance to the host.
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Rumen metabolism.

It is suggested that the major rumen microbes have been identified and the nutritional requirements, physiological characteristics, biochemical pathways and functions of these microbes have be largely characterized.
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Synergistes jonesii, gen. nov., sp.nov.: A Rumen Bacterium That Degrades Toxic Pyridinediols

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Denitrobacterium detoxificans gen. nov., sp. nov., a ruminal bacterium that respires on nitrocompounds.

A new group of anaerobic, Gram-positive, high G + C (56-60 mol%) bacteria was isolated from the bovine rumen and the creation of a new genus and species, Denitrobacterium detoxificans, for placement within the family Coriobacteriaceae is proposed.
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Oxalate:formate exchange. The basis for energy coupling in Oxalobacter.

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Detection of ruminal bacteria that degrade toxic dihydroxypyridine compounds produced from mimosine

Results obtained with the tests indicate that DHP degraders were not part of microbial populations in the rumina of cattle, sheep, and goats in Iowa, while most rumen samples examined from animals from the Virgin Islands and Haiti contained DHPDegraders.
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Enzyme, bacterial inoculant, and formic acid effects on silage composition of orchardgrass and alfalfa.

Investigation of the effects of cellulase application rates on neutral detergent fiber concentration and fermentation products of orchardgrass and alfalfa silages harvested with decreasing dry matter digestibility found that immature plants were more responsive to cellulase treatment than mature plants and this effect was enhanced by addition of inoculant.
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Metabolism of the plant toxins nitropropionic acid and nitropropanol by ruminal microorganisms

Evidence is presented that ruminal microbes from both cattle and sheep reduce these nitro groups in situ, so that NPA is converted to bet-alanine and NPOH is converts to 3-amino-1-propanol.
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Prevotella bryantii 25A used as a probiotic in early-lactation dairy cows: effect on ruminal fermentation characteristics, milk production, and milk composition.

The effects of daily addition of cells of a newly isolated strain of Prevotella bryantii (25A) to the rumen of 12 ruminally cannulated cows in early lactation increased ruminal fermentation products and milk fat concentration, and this difference was maintained throughout the experimental period.
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Grain overload in cattle and sheep: changes in microbial populations in the cecum and rumen.

Samples from the rumen and cecum of cattle and sheep were cultured to determine changes in microbial populations resulting from overfeeding with grain, and lactic acid bacteria had increased in numbers so that they were the most numerous organisms in both the Rumen and the c Cecum.
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