{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,4]],"date-time":"2026-06-04T19:46:24Z","timestamp":1780602384739,"version":"3.54.1"},"reference-count":35,"publisher":"SAGE Publications","issue":"1","license":[{"start":{"date-parts":[[1999,1,1]],"date-time":"1999-01-01T00:00:00Z","timestamp":915148800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J VET Diagn Invest"],"published-print":{"date-parts":[[1999,1]]},"abstract":"<jats:p>Consumption of monensin-containing feed contaminated with macrolide antibiotic residues resulted in the death of cattle from multiple feedlots in south-central Kansas. Cattle were fed milo dried distiller's grains (DDG) with solubles from a common source in conjunction with the ionophore antibiotic, monensin. Deaths occurred as early as 72\u201396 hours after feeding and were preceded by either no premonitory signs or 1 or more of the following: anorexia, depression, dyspnea, locomotor deficits, and recumbency. Significant gross lesions were pulmonary and mesenteric edema, hepatomegaly, and generalized myocardial and skeletal muscle pallor that was confirmed histologically as acute myodegeneration and necrosis. Other significant histologic lesions included centrolobular hepatocellular necrosis, congestion, and pulmonary interstitial and alveolar edema with fibrin exudation. Animals that survived beyond 6 weeks had poor weight gain and coalescing foci of myocardial fibrosis with residual myocardial degeneration. Analysis of trace mineral supplements for monensin were within the manufacturer's label range. The DDG samples from affected feedlots had 50\u20131,500 ppm of erythromycin, clarithromycin, and related macrolide antibiotic analogues, which originated in the alcohol residue. In a preliminary feeding trial, cattle fed this contaminated DDG in combination with monensin had clinical signs and died with gross and histologic findings comparable to those of the field cases. Even though rations supplemented with the contaminated DDG contained approved levels of monensin, the clinical and postmortem findings were consistent with those expected for monensin toxicosis. The presence of macrolide antibiotic residues in the contaminated feed appeared to affect the biotransformation of otherwise nontoxic levels of monensin, leading to clinical ionophore toxicosis.<\/jats:p>","DOI":"10.1177\/104063879901100113","type":"journal-article","created":{"date-parts":[[2011,5,12]],"date-time":"2011-05-12T16:18:45Z","timestamp":1305217125000},"page":"79-86","source":"Crossref","is-referenced-by-count":36,"title":["Toxicosis in Cattle from Concurrent Feeding of Monensin and Dried Distiller's Grains Contaminated with Macrolide Antibiotics"],"prefix":"10.1177","volume":"11","author":[{"given":"R. J.","family":"Basaraba","sequence":"first","affiliation":[{"name":"Department of Diagnostic Medicine\/Pathobiology, Kansas State University, Manhattan, KS 66506-5601"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"F. W.","family":"Oehme","sequence":"additional","affiliation":[{"name":"Department of Diagnostic Medicine\/Pathobiology, Kansas State University, Manhattan, KS 66506-5601"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M. W.","family":"Vorhies","sequence":"additional","affiliation":[{"name":"Department of Diagnostic Medicine\/Pathobiology, Kansas State University, Manhattan, KS 66506-5601"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"G. 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