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Cattle Boards
Health & Nutrition
Blackleg vacine
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<blockquote data-quote="DiamondSCattleCo" data-source="post: 149746" data-attributes="member: 2862"><p>Most blackleg vaccines are 100% effective at 3 months of age or older (usually 80% effective at 2 months), although I have seen some that advertise 99% effectiveness at 2 months of age. If you're worried about giving it to calves older than 3 or 4 months, don't be. Shoot 'em up. You'll also want to check the label, as you'll usually need to give them a booster a few weeks later. I use Covexin or Tasvax here, and give them shots at 3 months of age (just before releasing onto pasture) and boosters 4 months later.</p><p></p><p>If you keep heifers back for breeding, you'll also need to give those heifers another blackleg shot in the spring.</p><p></p><p>Rod</p></blockquote><p></p>
[QUOTE="DiamondSCattleCo, post: 149746, member: 2862"] Most blackleg vaccines are 100% effective at 3 months of age or older (usually 80% effective at 2 months), although I have seen some that advertise 99% effectiveness at 2 months of age. If you're worried about giving it to calves older than 3 or 4 months, don't be. Shoot 'em up. You'll also want to check the label, as you'll usually need to give them a booster a few weeks later. I use Covexin or Tasvax here, and give them shots at 3 months of age (just before releasing onto pasture) and boosters 4 months later. If you keep heifers back for breeding, you'll also need to give those heifers another blackleg shot in the spring. Rod [/QUOTE]
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