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Artificial Insemination (AI) for Cattle
worming during timed AI
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<blockquote data-quote="Chris H" data-source="post: 1251852" data-attributes="member: 1974"><p>Some wormer can't be used just before and just after breeding, someone named it above. As far as ones labeled 'safe', I'd consider the condition of the cows. Any handling is stressful and if the cow is already stressed from a heavy worm load the extra stress could cause the embryo to die. I get our cows done in April, most calves have arrived, lice start showing up then, and I vaccinate then. I got them done 3 weeks ago and they are putting on weight. None were too thin but had some '4's in there. The majority of the calves are between 6 and 9 weeks old and we'll put the bull out in 2 weeks. All the cows are gaining right now and that's the condition I want them in at breeding time. That is the biggest reason we worm at least 30 days before bull turn out, to get those cows gaining weight leading up to breeding time.</p><p></p><p>We do use one of the white wormers, orally, about July 4th. That worming has had no noticeable adverse affect on pregnancies. It seems to be the most critical worming for the calves and young breeding stock up to 3 year olds. Or maybe it is just as important with the spring & fall injectibles, and one without the other</p></blockquote><p></p>
[QUOTE="Chris H, post: 1251852, member: 1974"] Some wormer can't be used just before and just after breeding, someone named it above. As far as ones labeled 'safe', I'd consider the condition of the cows. Any handling is stressful and if the cow is already stressed from a heavy worm load the extra stress could cause the embryo to die. I get our cows done in April, most calves have arrived, lice start showing up then, and I vaccinate then. I got them done 3 weeks ago and they are putting on weight. None were too thin but had some '4's in there. The majority of the calves are between 6 and 9 weeks old and we'll put the bull out in 2 weeks. All the cows are gaining right now and that's the condition I want them in at breeding time. That is the biggest reason we worm at least 30 days before bull turn out, to get those cows gaining weight leading up to breeding time. We do use one of the white wormers, orally, about July 4th. That worming has had no noticeable adverse affect on pregnancies. It seems to be the most critical worming for the calves and young breeding stock up to 3 year olds. Or maybe it is just as important with the spring & fall injectibles, and one without the other [/QUOTE]
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