Evaluation of a direct method for measuring absorption from the gut.
D000818:Animals; D001011:Aorta; D001786:Blood Glucose / Q000032:analysis; D002247:Carbon Isotopes; D002417:Cattle / Q000378:metabolism*; D004386:Duodenum; D004395:Dye Dilution Technique; D005947:Glucose / Q000008:administration & dosage / Q000378:metabolism; D006454:Hemoglobins / Q000032:analysis; D007408:Intestinal Absorption; D007421:Intestine, Small / Q000378:metabolism*; D008722:Methods; D011168:Portal System; D011169:Portal Vein; D013997:Time Factors
D001786:Blood Glucose; D002247:Carbon Isotopes; D006454:Hemoglobins; D005947:Glucose