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Cattle Boards
Health & Nutrition
IBR Abortion Storm in Naive Herd
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<blockquote data-quote="milkmaid" data-source="post: 993517" data-attributes="member: 852"><p>There's very few cows out there that are not positive already for IBR (it's a herpes virus - herpes is "forever"). The goal with vaccination is simply to prevent it from rearing its head and causing clinical disease. I've seen operations were all animals were (tested) IBR negative, but it takes work - eg calves raised on bottles and separated from adult animals, and no transfer of machinery etc between positive and negative areas. How closed is your herd? eg, do the animals ever share a fenceline with neighboring cattle? did you raise all the animals in the herd? if some of your cattle were purchased animals they likely were vaccinated as calves. How long has the herd been closed?</p><p></p><p>Which MLV did you use? if you're concerned about the vaccine being responsible, try calling the vaccine company and talking to them about it. Some will pay for diagnostic testing if there's a concern that their vaccine was the culprit.</p></blockquote><p></p>
[QUOTE="milkmaid, post: 993517, member: 852"] There's very few cows out there that are not positive already for IBR (it's a herpes virus - herpes is "forever"). The goal with vaccination is simply to prevent it from rearing its head and causing clinical disease. I've seen operations were all animals were (tested) IBR negative, but it takes work - eg calves raised on bottles and separated from adult animals, and no transfer of machinery etc between positive and negative areas. How closed is your herd? eg, do the animals ever share a fenceline with neighboring cattle? did you raise all the animals in the herd? if some of your cattle were purchased animals they likely were vaccinated as calves. How long has the herd been closed? Which MLV did you use? if you're concerned about the vaccine being responsible, try calling the vaccine company and talking to them about it. Some will pay for diagnostic testing if there's a concern that their vaccine was the culprit. [/QUOTE]
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