title: Clinical and structural features of equine enteroliths.
abstract: Enteroliths were obtained by laparotomy or necropsy of 11 horses, and a collection of smaller concretions was found on pasture. Following analysis by energy-dispersion x-ray analysis and x-ray diffraction, they were found to consist primarily of ammonium magnesium phosphate. Several minor elements were detected, including titanium in some concretions. From a farm with a history of enterolith obstructions, the well water contained a high proportion of magnesium in relation to the other cations.
mesh_terms: D000818:Animals; D002118:Calcium / Q000032:analysis; D002137:Calculi / Q000662:veterinary*; D005243:Feces / Q000032:analysis; D006734:Horse Diseases / Q000378:metabolism*; D006736:Horses; D007410:Intestinal Diseases / Q000378:metabolism / Q000662:veterinary*; D008274:Magnesium / Q000032:analysis; D017616:Magnesium Compounds; D008297:Male; D010710:Phosphates / Q000032:analysis; D000069877:Struvite; D014867:Water / Q000032:analysis; D014881:Water Supply; D014961:X-Ray Diffraction
chemical_list: D017616:Magnesium Compounds; D010710:Phosphates; D014867:Water; D000069877:Struvite; D008274:Magnesium; D002118:Calcium