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Journal of Veterinary Medicine
Volume 2014 (2014), Article ID 584945, 3 pages
http://dx.doi.org/10.1155/2014/584945
Research Article

Hepatic Necrosis and Degenerative Myopathy Associated with Cassava Feeding in Pigs

Department of Veterinary Pathology, College of Veterinary Medicine, Michael Okpara University of Agriculture, Umudike PMB 7267, Abia State, Nigeria

Received 7 June 2014; Accepted 5 August 2014; Published 12 August 2014

Academic Editor: Vito Laudadio

Copyright © 2014 Gloria Daniel-Igwe. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Forty-three deaths were recorded among pigs fed boiled cassava meal at a private piggery over a period of two years. There were signs of sudden death in some cases with blood exuding from the external nares, vomiting, muscular weakness and pain or reluctance to move, emaciation, and stunted growth. The necropsy lesions included skeletal and cardiac muscle degeneration and necrosis, icterus, hepatic necrosis, and oedema of the dependent parts. The deaths and clinical signs are thought to be due to a non cyanide toxic principle in cassava, possibly the coumarins (scopoletin), which is found in high levels in cassava diet even after heat treatment. Therefore, the use of proper processing technology to obtain cassava products of high quality is recommended.