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Livestock
NADIS Animal Health
Bold plans to eradicate BVD and sheep scab by 2031
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<blockquote data-quote="ringi" data-source="post: 8255916" data-attributes="member: 57632"><p>BVD unlike Johnnes and TB has a simple well proven process for regional elimination. (Find and <strong>quickly</strong> remove all PI, repeat until done. False negatives are too common for both TB and Johnnes for such a system to give quick results.) </p><p></p><p></p><p>This is standard with a Johnnes +ve cow while a dairy herd is in the process of controling Johnnes. I can't see why any herd would keep a known BVD PI. (Remember most {not all} Johnnes spread is from cow to calf and Johnnes does not become an issue until aged over about 3.)</p><p></p><p></p><p></p><p>Lots of work was being done in UK research labs on new TB tests that would enable vaccination of cattle. Nearly all these labs changed to Covid-19 research within weeks of the 1st cases in China. (One of my relatives surports/sells lab robots, they had two year when they did not have time to even return phone calls from customers not doing Covid-19 work.) </p><p></p><p>(There is no cattle TB vaccine that gives near 100% infection blocking.)</p></blockquote><p></p>
[QUOTE="ringi, post: 8255916, member: 57632"] BVD unlike Johnnes and TB has a simple well proven process for regional elimination. (Find and [B]quickly[/B] remove all PI, repeat until done. False negatives are too common for both TB and Johnnes for such a system to give quick results.) This is standard with a Johnnes +ve cow while a dairy herd is in the process of controling Johnnes. I can't see why any herd would keep a known BVD PI. (Remember most {not all} Johnnes spread is from cow to calf and Johnnes does not become an issue until aged over about 3.) Lots of work was being done in UK research labs on new TB tests that would enable vaccination of cattle. Nearly all these labs changed to Covid-19 research within weeks of the 1st cases in China. (One of my relatives surports/sells lab robots, they had two year when they did not have time to even return phone calls from customers not doing Covid-19 work.) (There is no cattle TB vaccine that gives near 100% infection blocking.) [/QUOTE]
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NADIS Animal Health
Bold plans to eradicate BVD and sheep scab by 2031
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