{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,3]],"date-time":"2026-10-03T02:43:13Z","timestamp":1790995393231,"version":"4.1.0"},"reference-count":32,"publisher":"Oxford University Press (OUP)","issue":"2","license":[{"start":{"date-parts":[[2026,2,3]],"date-time":"2026-02-03T00:00:00Z","timestamp":1770076800000},"content-version":"vor","delay-in-days":3626,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"name":"Chevita GmbH"},{"name":"Austrian Association for Buiatrics"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2016,3,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Healthy cows consume large amounts of potassium and a sudden loss in appetite can lead to hypokalemia. The routine method to evaluate potassium homeostasis is the measurement of the extracellular potassium in plasma or serum, but this does not provide information about the intracellular potassium pool.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Hypothesis\/Objectives<\/jats:title>\n                    <jats:p>To evaluate potassium homeostasis by comparing the extracellular and intracellular potassium concentration in cows with reduced feed intake and gastrointestinal ileus.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Animals<\/jats:title>\n                    <jats:p>Twenty cows 1\u20133 days postpartum (group 1) and 20 cows with gastrointestinal ileus (group 2).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Observational cross-sectional study. Plasma potassium was measured by using an ion-sensitive electrode. Intracellular potassium was measured in erythrocytes and muscle tissue (muscle biopsy) by using inductively coupled plasma optical emission spectroscopy.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Cows of group 1 did not have hypokalemia. Overall cows with gastrointestinal ileus were hypokalemic (mean \u00b1 SD, 2.9 mmol\/L \u00b1 0.78), but potassium concentration in erythrocytes and muscle tissue was not lower than in postpartum cows. Intracellular potassium in erythrocytes varied very widely; group 1: 3497\u201310735 mg\/kg (5559 \u00b1 2002 mg\/kg), group 2: 4139\u201321678 mg\/kg (7473 \u00b1 4034 mg\/kg). Potassium in muscle tissue did not differ between group 1 (3356 \u00b1 735 mg\/kg wet weight) and group 2 (3407 \u00b1 1069 mg\/kg wet weight). No association between extracellular and intracellular potassium concentrations was detected.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions and clinical importance<\/jats:title>\n                    <jats:p>That measurement of plasma potassium concentration is not sufficient to evaluate potassium metabolism of cows.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/jvim.13842","type":"journal-article","created":{"date-parts":[[2016,2,15]],"date-time":"2016-02-15T04:01:05Z","timestamp":1455508865000},"page":"679-685","source":"Crossref","is-referenced-by-count":11,"title":["Concentration of Potassium in Plasma, Erythrocytes, and Muscle Tissue in Cows with Decreased Feed Intake and Gastrointestinal Ileus"],"prefix":"10.1093","volume":"30","author":[{"given":"S.","family":"Schneider","sequence":"first","affiliation":[{"name":"University Clinic for Ruminants, University of Veterinary Medicine Vienna Department 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