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<blockquote data-quote="Lucky_P" data-source="post: 830182" data-attributes="member: 12607"><p>Hmm. Don't know where the response I wrote early this morning went.</p><p></p><p>The <em>Clostridium<em> organisms that cause the Blackleg/Malignant Edema complex of diseases are ubiquitous(they're EVERYWHERE - and, yes, Jeanne, they are present in NY) spore-forming organisms that can remain dormant and viable in the soil for years, decades - possibly even centuries - on a premises.</em></em></p><p><em><em></em></em></p><p><em><em>The bacterins produced for vaccination against the clostridial organisms are about as close to 100% effective as any vaccine ever produced for man or beast, if administered correctly, and they are very inexpensive. Producers who do not vaccinate against the clostridial diseases are 'rolling the dice' - they may get away without any losses for years, but eventually, the odds will catch up with them - and for most producers, the loss of one calf to blackleg will cost more than all the clostridial bacterin you might have purchased in a lifetime. And, unfortunately, in most cases, when there's an 'outbreak' in an unvaccinated herd, you don't come away with just one dead calf. Most of the time, when I diagnose blackleg, the producer has already lost 3, 4, 6 or more animals over a few day's time - and losses may continue for 10-14 days or more after the producer begins a vaccination program in the face of an outbreak.</em></em></p><p><em><em>When I was a kid, my dad & uncle never vaccinated; but, one year, we lost over half the entire calf crop to blackleg one year - and we never skipped vaccinating after that - it was too costly.</em></em></p><p><em><em></em></em></p><p><em><em>I used to be of the opinion that if a calf had received at least one dose of clostridial bacterin after they were 3-4 months of age, that they were protected for life. But, I've subsequently seen enough cases of blackleg in adult cows that had reliable histories of having been properly vaccinated as calves, that I routinely 'booster' the clostridial bacterins on my adult cowherd every 3 years or so. It's just good, cheap 'insurance'. It's unusual to see blackleg in adult animals, but it does occur.</em></em></p></blockquote><p></p>
[QUOTE="Lucky_P, post: 830182, member: 12607"] Hmm. Don't know where the response I wrote early this morning went. The [i]Clostridium[i] organisms that cause the Blackleg/Malignant Edema complex of diseases are ubiquitous(they're EVERYWHERE - and, yes, Jeanne, they are present in NY) spore-forming organisms that can remain dormant and viable in the soil for years, decades - possibly even centuries - on a premises. The bacterins produced for vaccination against the clostridial organisms are about as close to 100% effective as any vaccine ever produced for man or beast, if administered correctly, and they are very inexpensive. Producers who do not vaccinate against the clostridial diseases are 'rolling the dice' - they may get away without any losses for years, but eventually, the odds will catch up with them - and for most producers, the loss of one calf to blackleg will cost more than all the clostridial bacterin you might have purchased in a lifetime. And, unfortunately, in most cases, when there's an 'outbreak' in an unvaccinated herd, you don't come away with just one dead calf. Most of the time, when I diagnose blackleg, the producer has already lost 3, 4, 6 or more animals over a few day's time - and losses may continue for 10-14 days or more after the producer begins a vaccination program in the face of an outbreak. When I was a kid, my dad & uncle never vaccinated; but, one year, we lost over half the entire calf crop to blackleg one year - and we never skipped vaccinating after that - it was too costly. I used to be of the opinion that if a calf had received at least one dose of clostridial bacterin after they were 3-4 months of age, that they were protected for life. But, I've subsequently seen enough cases of blackleg in adult cows that had reliable histories of having been properly vaccinated as calves, that I routinely 'booster' the clostridial bacterins on my adult cowherd every 3 years or so. It's just good, cheap 'insurance'. It's unusual to see blackleg in adult animals, but it does occur.[/i][/i] [/QUOTE]
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