title: The transfer of nitrogen from the blood to the rumen in sheep.
mesh_terms: D000641:Ammonia / Q000032:analysis; D000818:Animals; D002369:Castration; D008297:Male; D009584:Nitrogen / Q000378:metabolism*; D012417:Rumen / Q000032:analysis*; D012756:Sheep; D014508:Urea / Q000097:blood*
chemical_list: D000641:Ammonia; D014508:Urea; D009584:Nitrogen