Product Description
This book deals with transmissible spongiform encephalopathies in animals. Management of the wider consequences of BSE risk analysis and the OIE International Animal Health Code veterinary standards are a tool for handling all aspects of this human and livestock disease. This manual contains a general update on prion disease and reviews of current knowledge about BSE, scrapie and chronic wasting disease, including potential for transmissible spongiform encephalopathies in non-ruminant livestock and fish.
Swine in Britain were exposed to the causal agent of BSE via consumption of the same meat-and-bone meal (MBM) as cattle. According to a recent review by Matthews and Cooke, in the 1980s MBM was added to the diets of British pigs at an average inclusion rate of 5% - an annual usage rate of 175,000 tonnes. Despite this, no spontaneous cases of TSE were recorded in pigs.
In 1989 ten piglets were inoculated intracranially, intraperitoneally and intravenously with an homogenate of BSE-infected bovine brainstems at the UK Central Veterinary Laboratory, Weybridge. BSE-like changes were confirmed in one of the pigs at 74 weeks after inoculation. This finding led to a ban on the feeding of any "specified risk materials" (SRMs) i.e. bovine brain, spinal cord, tonsil, thymus, spleen and intestine, to any farm animals or pets.
Long-term (up to five years) follow-up of the ten inoculated piglets detected BSE-like effects in seven of them, five of which developed clinical signs with an incubation period of 69-150 weeks.
Contents list at www.pighealth.com/offers/food.htm
ISBN 9290445734
