The effect of the form and level of nitrogen in the diet for sheep on ammonia content in the rumen gases and surrounding air.
D000641:Ammonia / Q000032:analysis*; D000821:Animal Feed; D000818:Animals; D009584:Nitrogen / Q000032:analysis*; D012417:Rumen / Q000032:analysis*; D012756:Sheep / Q000378:metabolism*
D000641:Ammonia; D009584:Nitrogen