Energy utilization by pregnant and non-pregnant heifers.
D000821:Animal Feed; D000818:Animals; D001833:Body Temperature Regulation; D001835:Body Weight; D002417:Cattle / Q000378:metabolism* / Q000502:physiology; D004734:Energy Metabolism; D005260:Female; D005333:Fetus / Q000378:metabolism; D007668:Kidney / Q000378:metabolism; D008099:Liver / Q000378:metabolism; D008697:Methane / Q000378:metabolism; D009206:Myocardium / Q000378:metabolism; D011247:Pregnancy; D011270:Pregnancy, Animal; D014599:Uterus / Q000378:metabolism
D008697:Methane