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Product title :

An exploration of risk factors for bovine spongiform encephalopathy in ruminant production systems in the tropics

Author(s) : Dahlanuddin, Dam Van Tien, J.B. Liang & D.B. Adams

Summary :

The epidemic of bovine spongiform encephalopathy (BSE) in Europe in the late Twentieth Century required the interplay of two sets of factors, which now provide reference points for assessment of the BSE risk throughout the world. One set of factors consisted of the presence of infective agent in cattle or some other ruminant. The second set consisted of transmission and amplification of the disease, made possible through a particular feeding system that allowed persistent and habitual feeding of meat-and-bone meal (MBM) derived from cattle. The authors explore the ruminant production systems of three representative countries in South-East Asia against the background of factors required for the manifestation of BSE. The results can be extended to other countries in sub-tropical and tropical regions where similar, non-industrial ruminant production systems operate. In short, the lack of a nutritionally or economically rational niche for MBM as a source of dietary protein or nitrogen in many ruminant production systems removes the hazard of BSE.

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