title: Calcium excretion in feces of ungulates.
abstract: 1. Fecal excretion of calcium was examined in 122 individual ungulates representing 7 species of Equidae, 3 species of Tapiridae, 3 species of Rhinocerotidae, 2 species of Elephantidae, 2 species of Hippopotamidae, 12 species of Bovidae, 2 species of Cervidae, 3 species of Camellidae and 1 species of Giraffidae. 2. Animals were fed timothy hay, a low calcium diet or alfalfa hay, a high calcium diet. 3. In a few cases oat straw or prairie hay was used instead of timothy hay. 4. Samples of feces were obtained from individuals daily for 4 days following a 20 day dietary equilibration period. 5. Feces of equids, tapirs, rhinoceros and elephants had a lower calcium concentration and a lower Ca/P ratio than feces of ruminants when the animals were fed diets of equivalent calcium content. 6. The findings suggest that the non-ruminant ungulate equids, tapirs, rhinoceros and elephants absorb a larger proportion of dietary calcium than ruminants do.
mesh_terms: D000818:Animals; D002020:Buffaloes / Q000378:metabolism; D002118:Calcium / Q000378:metabolism*; D002162:Camelus / Q000378:metabolism; D002417:Cattle / Q000378:metabolism; D003670:Deer / Q000378:metabolism; D004606:Elephants / Q000378:metabolism; D005243:Feces / Q000032:analysis*; D006736:Horses / Q000378:metabolism; D008322:Mammals / Q000378:metabolism*; D013045:Species Specificity
chemical_list: D002118:Calcium