RumenSerial PassageSwimming PoolsCiliophoraReticulumAnimal FeedFermentationFatty Acids, VolatileSheepCattleDigestionRuminantsBacteriaAbomasumEukaryotaMethaneStomach, RuminantSilageFibrobacterNitrogenPoaceaeGene PoolMedicago sativaAnimal Nutritional Physiological PhenomenaGastrointestinal ContentsAmmoniaCelluloseMethanobrevibacterRuminococcusOmasumButyrivibrioPropionatesPeptococcaceaeDietMonensinHydrogen-Ion ConcentrationGram-Negative Anaerobic BacteriaDietary FiberBacteroidesGoatsAnaerobiosisEubacteriumCerealsPrevotellaMolecular Sequence DataCulture MediaHydrogenationMetagenomeCellobioseDigestive System Physiological PhenomenaGastric JuiceStarchZea maysCell LineCells, CulturedEructationDietary ProteinsTime FactorsAcetatesRandom AllocationButyratesEatingDuodenumFood AdditivesFungiPhylogenySelenomonasFecesRNA, Ribosomal, 16SSequence Analysis, DNAKinetics