Tiamulin and narasin toxicosis in nursery pigs

Jane A. Carpenter, DVM; George Charbonneau, DVM; Gaylan Josephson, DVM, Diplomate ACVP

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This case report describes a clinical case of tiamulin and narasin toxicosis in a group of nursery pigs, caused by the inadvertent introduction of narasin at 83.1 g per tonne into a ration containing tiamulin at 31.4 g per tonne. The affected pigs were anorexic and showed signs of weakness, depression, ataxia, and incoordination to the point of recumbency, without paddling or other neurological signs. Pathologically, a diffuse, extensive degenerative myopathy was present. The feed-mixing error was caused by a mechanical problem with the micro-ingredient discharge equipment at the feed mill. Steps were taken by the feed manufacturer to correct and prevent the occurrence of another incident.

Keywords: tiamulin, narasin, toxicosis

RIS citationCite as: Carpenter JA, Charbonneau G, Josephson G. Tiamulin and narasin toxicosis in nursery pigs. J Swine Health Prod 2005;13(6):333-336.

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