Evaluation of polyethylene, chromic oxide, and cerium-144 as digestibility indicators in burros.
D000818:Animals; D002564:Cerium Isotopes; D004032:Diet; D004063:Digestion / Q000502:physiology*; D005243:Feces / Q000032:analysis; D008297:Male; D010087:Oxides; D010527:Perissodactyla / Q000378:metabolism*; D011095:Polyethylenes
D002564:Cerium Isotopes; D010087:Oxides; D011095:Polyethylenes