Evaluation of nitrogen metabolites as indices of nitrogen utilization in sheep given frozen and dry mature herbages.
D000596:Amino Acids / Q000097:blood; D000641:Ammonia / Q000032:analysis; D000821:Animal Feed / Q000032:analysis*; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D001806:Blood Urea Nitrogen; D005243:Feces / Q000032:analysis; D005615:Freezing; D008297:Male; D009584:Nitrogen / Q000032:analysis / Q000378:metabolism* / Q000652:urine; D006109:Poaceae / Q000032:analysis; D012159:Reticulum / Q000032:analysis; D012417:Rumen / Q000032:analysis; D012756:Sheep / Q000378:metabolism*; D012820:Silage
D000596:Amino Acids; D000641:Ammonia; D009584:Nitrogen