[Mineral content of various tissues in cattle. 4. Studies on dry matter, Ca, Mg, Na and K concentration in mucous membrane and muscle layer of various bovine gastrointestinal sections].

Samples of the following parts of the gastrointestinal tract were collected from 20 slaughter cattle: - oesophagus, reticulum, omasum, rumen, abomasum, duodenum, jejunum, ileum, colon (beginning and end). There were considerable differences in mineral content, related to the differing functions of each part. Forestomach mucosa contained high concentrations of Ca and Mg, attributable to accumulation and separation of mineral salts. In the three segments of small intestine there was generally more Mg than Ca, with high concentrations of Na and K. The tabulated results are intended to provide a basis for comparison with pathological states.