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Livestock
Dairy Farming
The madness of “one size fits all “
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<blockquote data-quote="matthew" data-source="post: 5866778" data-attributes="member: 169"><p>Prior to the change of tuberculin antigen, vets used a human tuberculosis bacterial base. After the mid 1970s that changed to AN5 which is the bovine base.</p><p>The witches brew was made at .Weybridge until very recently, when U.K. purchased product from .Dutch company Lelystadt.</p><p>That company too use AN5 as their base. </p><p></p><p>What has been discovered by molecular geneticists is that the old AN5 cattle strain has gone from our cattle population. None left. Zilch. Test and slaughter worked. And what they suggest we have now, is badger adapted TB feeding back up. </p><p></p><p>And until we sort that out, no amount of different tests will solve our problems in GB’s tested sentinel cattle.</p></blockquote><p></p>
[QUOTE="matthew, post: 5866778, member: 169"] Prior to the change of tuberculin antigen, vets used a human tuberculosis bacterial base. After the mid 1970s that changed to AN5 which is the bovine base. The witches brew was made at .Weybridge until very recently, when U.K. purchased product from .Dutch company Lelystadt. That company too use AN5 as their base. What has been discovered by molecular geneticists is that the old AN5 cattle strain has gone from our cattle population. None left. Zilch. Test and slaughter worked. And what they suggest we have now, is badger adapted TB feeding back up. And until we sort that out, no amount of different tests will solve our problems in GB’s tested sentinel cattle. [/QUOTE]
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The madness of “one size fits all “
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