Effects of dietary protein and energy restriction on lactating beef cows.
D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D001786:Blood Glucose / Q000032:analysis; D001835:Body Weight; D002417:Cattle; D003300:Copper / Q000097:blood; D004044:Dietary Proteins / Q000008:administration & dosage*; D004734:Energy Metabolism; D005260:Female; D006454:Hemoglobins / Q000032:analysis; D007774:Lactation; D008892:Milk / Q000032:analysis; D009584:Nitrogen / Q000652:urine; D011247:Pregnancy; D014508:Urea / Q000097:blood
D001786:Blood Glucose; D004044:Dietary Proteins; D006454:Hemoglobins; D003300:Copper; D014508:Urea; D009584:Nitrogen