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Artificial Insemination (AI) for Cattle
All AI for small herd?
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<blockquote data-quote="SPH" data-source="post: 1656365" data-attributes="member: 20580"><p>For a a handful of cows all AI should be fine just need to be dilligent with heat detection and breed near the end of the heat cycle to get the best conception rate and keep your calving season from getting too stretched out.</p><p></p><p>We reduced our herd from around 20+ females to about 12 a couple years ago and our AI program is 1 timed heat round for late Feb due date then out with the herd bull for cleanup. Not all will come in heat for AI but synching the majority of them up has worked well as if they don't stick to the AI service they almost always stick when they come in heat with the bull next time. Makes for a nice tight calving window and a nice mix of AI and natural sired calves. Had all but 1 calf within a month this spring and the last one was only a couple weeks later. That cow with last calf in early April is confirmed pregnant with a late Feb AI calf so pretty pleased with the system we have going that allows us to pull the bull earlier and not stretch out the calving season and the cows still can breed back up a cycle or 2 the next year. May 15th used to be our cutoff when we had 20+ but now early April is the latest we like to calf and no later than May 1 at wosrt since most of the cows are calved by end of March. Helps make our cull decisions easier too, if they cant breed back within a certain time frame we dont care to keep 1 to calve over a month after the rest of the herd has calved.</p></blockquote><p></p>
[QUOTE="SPH, post: 1656365, member: 20580"] For a a handful of cows all AI should be fine just need to be dilligent with heat detection and breed near the end of the heat cycle to get the best conception rate and keep your calving season from getting too stretched out. We reduced our herd from around 20+ females to about 12 a couple years ago and our AI program is 1 timed heat round for late Feb due date then out with the herd bull for cleanup. Not all will come in heat for AI but synching the majority of them up has worked well as if they don't stick to the AI service they almost always stick when they come in heat with the bull next time. Makes for a nice tight calving window and a nice mix of AI and natural sired calves. Had all but 1 calf within a month this spring and the last one was only a couple weeks later. That cow with last calf in early April is confirmed pregnant with a late Feb AI calf so pretty pleased with the system we have going that allows us to pull the bull earlier and not stretch out the calving season and the cows still can breed back up a cycle or 2 the next year. May 15th used to be our cutoff when we had 20+ but now early April is the latest we like to calf and no later than May 1 at wosrt since most of the cows are calved by end of March. Helps make our cull decisions easier too, if they cant breed back within a certain time frame we dont care to keep 1 to calve over a month after the rest of the herd has calved. [/QUOTE]
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