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Cattle Boards
Breeding / Calving Issues
Colostrum production?
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<blockquote data-quote="Lucky_P" data-source="post: 1464520" data-attributes="member: 12607"><p>Peak colostral antibody levels are 'set' at about 8 weeks before calving... so, if you're vaccinating to try to pass immunity on to the calf, you need to do it at least 3 months before calving - not 1 month before, as some vaccine labels (wrongly) recommend. </p><p>By the same token, if you have an unweaned calf (or a thief) nursing a cow anytime between 8 wks before, and calving day... the unborn calf will not get the full benefit of the antibodies that were intended for it.</p></blockquote><p></p>
[QUOTE="Lucky_P, post: 1464520, member: 12607"] Peak colostral antibody levels are 'set' at about 8 weeks before calving... so, if you're vaccinating to try to pass immunity on to the calf, you need to do it at least 3 months before calving - not 1 month before, as some vaccine labels (wrongly) recommend. By the same token, if you have an unweaned calf (or a thief) nursing a cow anytime between 8 wks before, and calving day... the unborn calf will not get the full benefit of the antibodies that were intended for it. [/QUOTE]
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