RumenCiliophoraFatty Acids, VolatileFermentationReticulumSheepAnimal FeedCattleRuminantsDigestionBacteriaAbomasumMethaneEukaryotaStomach, RuminantFibrobacterSilageNitrogenMethanobrevibacterRuminococcusPoaceaeAnimal Nutritional Physiological PhenomenaCelluloseOmasumGastrointestinal ContentsAmmoniaButyrivibrioMedicago sativaPeptococcaceaePropionatesGram-Negative Anaerobic BacteriaDietMonensinBacteroidesHydrogen-Ion ConcentrationEubacteriumPrevotellaAnaerobiosisHydrogenationDietary FiberMetagenomeCellobioseGoatsCerealsGastric JuiceEructationSelenomonasStarchButyratesZea maysAcetatesDietary ProteinsFood Additives