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Cattle Boards
NCBA, R-CALF, COOL, USDA (No Politics!)
More Sound Science Down the Sewer-Japan has 20 Month Old
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<blockquote data-quote="flounder" data-source="post: 211743" data-attributes="member: 3519"><p>The implications of the Swiss result for Britain, which has had the</p><p>most BSE, are complex. Only cattle aged 30 months or younger are eaten</p><p>in Britain, on the assumption, based on feeding trials, that cattle of</p><p>that age, even if they were infected as calves, have not yet</p><p>accumulated enough prions to be infectious. But the youngest cow to</p><p>develop BSE on record in Britain was 20 months old, showing some are</p><p>fast incubators. Models predict that 200-300 cattle under 30 months</p><p>per year are infected with BSE and enter the food chain currently in</p><p>Britain. Of these 3-5 could be fast incubators and carrying detectable</p><p>quantities of prion. </p><p></p><p></p><p>If one were to test cattle routinely at abattoirs in Britain, it is</p><p>possible that only those 3-5 would be detectable, and thus could be</p><p>kept out of the food chain. So routine testing may not be</p><p>cost-effective. On the other hand, these predictions are based</p><p>entirely on modelling. Some think that at least a study similar to the</p><p>Swiss one should be carried out in Britain to actually measure the</p><p>extent of infection, especially if there is a subclinical strain that</p><p>is not reflected in models based on clinical incidence. </p><p></p><p></p><p></p><p>snip...</p><p></p><p></p><p></p><p></p><p><a href="http://www.sare.org/sanet-mg/archives/html-home/28-html/0359.html" target="_blank">http://www.sare.org/sanet-mg/archives/h ... /0359.html</a></p><p></p><p></p><p><a href="https://web01.aphis.usda.gov/BSEcom.nsf/0/b78ba677e2b0c12185256dd300649f9d?OpenDocument&AutoFramed" target="_blank">https://web01.aphis.usda.gov/BSEcom.nsf ... AutoFramed</a></p><p></p><p></p><p></p><p></p><p>TSS</p></blockquote><p></p>
[QUOTE="flounder, post: 211743, member: 3519"] The implications of the Swiss result for Britain, which has had the most BSE, are complex. Only cattle aged 30 months or younger are eaten in Britain, on the assumption, based on feeding trials, that cattle of that age, even if they were infected as calves, have not yet accumulated enough prions to be infectious. But the youngest cow to develop BSE on record in Britain was 20 months old, showing some are fast incubators. Models predict that 200-300 cattle under 30 months per year are infected with BSE and enter the food chain currently in Britain. Of these 3-5 could be fast incubators and carrying detectable quantities of prion. If one were to test cattle routinely at abattoirs in Britain, it is possible that only those 3-5 would be detectable, and thus could be kept out of the food chain. So routine testing may not be cost-effective. On the other hand, these predictions are based entirely on modelling. Some think that at least a study similar to the Swiss one should be carried out in Britain to actually measure the extent of infection, especially if there is a subclinical strain that is not reflected in models based on clinical incidence. snip... [url=http://www.sare.org/sanet-mg/archives/html-home/28-html/0359.html]http://www.sare.org/sanet-mg/archives/h ... /0359.html[/url] [url=https://web01.aphis.usda.gov/BSEcom.nsf/0/b78ba677e2b0c12185256dd300649f9d?OpenDocument&AutoFramed]https://web01.aphis.usda.gov/BSEcom.nsf ... AutoFramed[/url] TSS [/QUOTE]
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NCBA, R-CALF, COOL, USDA (No Politics!)
More Sound Science Down the Sewer-Japan has 20 Month Old
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