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Vaccinate ?
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<blockquote data-quote="djinwa" data-source="post: 792715" data-attributes="member: 8265"><p>From my work in the public health field, and some association with animal health, I know that many vaccinations aren't necessary. But sometimes it's easier to just give everything than to tailor protocols to risks for a particular area or producer.</p><p></p><p>The ideal test would be to vaccinate every other cow/calf coming through the chute and compile production data and disease/death incidence. Compare the vaccinated group against the unvaccinated in the same herd and the same conditions. You can't really compare production performance of one herd against another because of different management, feed, environment, etc. For example the question above about rates of non-pregnant cows in relation to vaccinations - the open cows could be due to other factors in a herd of unvaccinated cattle, like bull fertility problems.</p><p></p><p>Having a certain percent of the population vaccinated can prevent an epidemic from getting started. However, if a disease is pretty much eradicated, you reach a point where the benefits of vaccination are not worth the costs.</p><p></p><p>Disclaimer: Everything I said could be wrong.</p></blockquote><p></p>
[QUOTE="djinwa, post: 792715, member: 8265"] From my work in the public health field, and some association with animal health, I know that many vaccinations aren't necessary. But sometimes it's easier to just give everything than to tailor protocols to risks for a particular area or producer. The ideal test would be to vaccinate every other cow/calf coming through the chute and compile production data and disease/death incidence. Compare the vaccinated group against the unvaccinated in the same herd and the same conditions. You can't really compare production performance of one herd against another because of different management, feed, environment, etc. For example the question above about rates of non-pregnant cows in relation to vaccinations - the open cows could be due to other factors in a herd of unvaccinated cattle, like bull fertility problems. Having a certain percent of the population vaccinated can prevent an epidemic from getting started. However, if a disease is pretty much eradicated, you reach a point where the benefits of vaccination are not worth the costs. Disclaimer: Everything I said could be wrong. [/QUOTE]
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