title: Measurement of the bacterial nitrogen entering the duodenum of the ruminant using diaminopimelic acid as a marker.
mesh_terms: D000596:Amino Acids / Q000032:analysis; D000818:Animals; D001419:Bacteria / Q000378:metabolism*; D001426:Bacterial Proteins / Q000032:analysis; D002417:Cattle; D002852:Chromatography, Ion Exchange; D004386:Duodenum / Q000032:analysis*; D005260:Female; D007202:Indicators and Reagents; D007774:Lactation; D009584:Nitrogen / Q000032:analysis*; D010867:Pimelic Acids / Q000032:analysis*; D011247:Pregnancy; D012417:Rumen / Q000382:microbiology*; D012756:Sheep
chemical_list: D000596:Amino Acids; D001426:Bacterial Proteins; D007202:Indicators and Reagents; D010867:Pimelic Acids; D009584:Nitrogen