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Cattle Boards
Artificial Insemination (AI) for Cattle
Natural Heats versus Synchronization
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<blockquote data-quote="Buck Randall" data-source="post: 1594415" data-attributes="member: 38590"><p>Most of the dairy farms around here have gone to breeding exclusively on synchronization and TAI for the first breeding. Even if a cow shows a beautiful standing heat, they'll ignore it and synchronize her because the conception rates are so much better with TAI following presynch ovsynch or double ovsynch. Of course, it's also much easier for them to give the extra shots than it is for most beef producers.</p><p></p><p>It's hard to beat the convenience of a CIDR cosynch, but if you really want to maximize your conception rate, I'd recommend something like this:</p><p>Day one: GnRH and insert CIDR</p><p>Seven days later: Prostaglandin and pull CIDR</p><p>24 hours later: Prostaglandin</p><p>32 hours later: GnRH</p><p>16 hours later: Timed AI</p><p></p><p>That's an unacceptable number of trips through the chute for most people, but if you have the right facilities and cattle for it, the 5-10% bump in conception might be worth it to you.</p></blockquote><p></p>
[QUOTE="Buck Randall, post: 1594415, member: 38590"] Most of the dairy farms around here have gone to breeding exclusively on synchronization and TAI for the first breeding. Even if a cow shows a beautiful standing heat, they'll ignore it and synchronize her because the conception rates are so much better with TAI following presynch ovsynch or double ovsynch. Of course, it's also much easier for them to give the extra shots than it is for most beef producers. It's hard to beat the convenience of a CIDR cosynch, but if you really want to maximize your conception rate, I'd recommend something like this: Day one: GnRH and insert CIDR Seven days later: Prostaglandin and pull CIDR 24 hours later: Prostaglandin 32 hours later: GnRH 16 hours later: Timed AI That's an unacceptable number of trips through the chute for most people, but if you have the right facilities and cattle for it, the 5-10% bump in conception might be worth it to you. [/QUOTE]
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Natural Heats versus Synchronization
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