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Cattle Boards
Breeding / Calving Issues
Modified Live and abortion
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<blockquote data-quote="Dempster" data-source="post: 1647169" data-attributes="member: 32761"><p>The biggest risk when giving a MLV to a calf on an unvaccinated dam is the possibility that some of the vaccine runs back out the injection site and is licked off right away by the dam. Theoretically, there could be some viral replication in the mouth that is passed through the teat when the calf nurses, but that probably isn't much more than a theory. If you talk to the technical people with the vaccine companies, most of them have never found a case where a vaccinated calf caused an abortion in an unvaccinated cow.</p><p></p><p>Killed products are not going to give you the protection you need to reduce this possibility. Protection is just a lot poorer with killed products. </p><p></p><p>Additionally, truth be told, Vista probably offers the poorest protection of the 3 main MLV lines (Bovishield, Pyramid, and Vista).</p></blockquote><p></p>
[QUOTE="Dempster, post: 1647169, member: 32761"] The biggest risk when giving a MLV to a calf on an unvaccinated dam is the possibility that some of the vaccine runs back out the injection site and is licked off right away by the dam. Theoretically, there could be some viral replication in the mouth that is passed through the teat when the calf nurses, but that probably isn't much more than a theory. If you talk to the technical people with the vaccine companies, most of them have never found a case where a vaccinated calf caused an abortion in an unvaccinated cow. Killed products are not going to give you the protection you need to reduce this possibility. Protection is just a lot poorer with killed products. Additionally, truth be told, Vista probably offers the poorest protection of the 3 main MLV lines (Bovishield, Pyramid, and Vista). [/QUOTE]
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Cattle Boards
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Modified Live and abortion
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