Bovine Spongiform Encephalopathy (BSE, or Mad Cow Disease): by Sarah A. Lister

By Sarah A. Lister

Via mid-May 2007, the us had proven 3 circumstances of bovine spongiform encephalopathy (BSE, or 'mad cow disease'): the 1st in December 2003 in a Canadian-born cow present in Washington country, the second one in June 2005 in cow in Texas, and the 3rd in March 2006 in a cow in Alabama. presently after the 1st case, U.S. division of Agriculture (USDA) and different officers introduced measures to enhance present safeguards opposed to the creation and unfold of BSE. formerly, the key safeguards have been: USDA regulations on imports of ruminants and their items from nations with BSE; a ban on feeding so much mammalian proteins to farm animals and different ruminants, issued via the nutrition and Drug management (FDA); and a certain family surveillance software by way of USDA's Animal and Plant wellbeing and fitness Inspection provider (APHIS), the company liable for animal overall healthiness tracking and disorder keep an eye on.

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92] USDA officials also revealed on June 24, 2005, that a USDA laboratory had actually found possible BSE in the animal when it applied an “experimental” version of the IHC test back in November 2004. [93] This information, and the positive BSE confirmation by Weybridge, provoked strong criticism by consumer groups and several Members of Congress. ” Secretary Johanns, who replaced Ann Veneman as Secretary earlier in 2005, promised on June 24, 2005, that henceforth the department would conduct two types of confirmatory tests — the IHC and the Western blot — if any screening 46 Sarah A.

It is thought that the long incubation period and possibly changes in rendering and feeding practices led to amplification of the agent in the feed supply and spread of the disease for years before it was recognized in 1986. In 1988, the UK banned the practice of feeding ruminant by-products back to ruminants. When the purported causal link between BSE and the human disease, variant Creutzfeld-Jakob disease (vCJD), was announced by the UK in 1996, the United States added similar controls over cattle feed, to prevent spread of the disease should it emerge.

53 million per year for disposing of from 26,000 to 64,000 cattle carcasses that could no longer be rendered, according to FDA’s economic analysis. , 90%) would be removed from the feed supply, leaving a much lower cost burden to industry than a broader SRM ban, which would bring only minimally greater risk reduction, and at far higher cost. For example, as the economic analysis estimates, banning all SRM plus all dead and downed cattle carcasses would have cost the industry an estimated $195 million to $240 million.

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