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Cattle Boards
Breeding / Calving Issues
Influence of MLV FP Vaccinces
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<blockquote data-quote="Bright Raven" data-source="post: 1566917" data-attributes="member: 27490"><p>Anyone who is doing AI needs to be aware of additional research that is proving that administering MLV for the group of Fetal Protection viruses at 30 days or less prebreeding can significantly reduce AI conception. What is occurring is the IBR component of the Fetal Protection vaccine is causing the immune response in the ovary to disrupt normal estrus functions.</p><p></p><p>First, this has nothing to do with other MLV vaccines like Calf Guard. So don't blame this on the entire group of MLV vaccines on the market.</p><p></p><p>Second, it doesn't mean you should stop using a MLV vaccine for Fetal Protection. It just means to use it more than 30 days before you intend to AI the cow or heifer.</p></blockquote><p></p>
[QUOTE="Bright Raven, post: 1566917, member: 27490"] Anyone who is doing AI needs to be aware of additional research that is proving that administering MLV for the group of Fetal Protection viruses at 30 days or less prebreeding can significantly reduce AI conception. What is occurring is the IBR component of the Fetal Protection vaccine is causing the immune response in the ovary to disrupt normal estrus functions. First, this has nothing to do with other MLV vaccines like Calf Guard. So don't blame this on the entire group of MLV vaccines on the market. Second, it doesn't mean you should stop using a MLV vaccine for Fetal Protection. It just means to use it more than 30 days before you intend to AI the cow or heifer. [/QUOTE]
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Influence of MLV FP Vaccinces
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