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Cattle Boards
Breeding / Calving Issues
Best Sync to Tighten Up a Calving Window ???
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<blockquote data-quote="Fire Sweep Ranch" data-source="post: 946607" data-attributes="member: 18809"><p>Those standing 36 hours later, if you gave them a shot of GnrH when you AI'd, should be OK. We had a heifer this year that we AI'd 12 hours after seeing her stand (natural heat), gave her Cystorelin (GnRH), and then observed her standing 12 hours later! I did not have any semen left on the bull we used on her, so I just figured we would see if she stuck. She was ultra-sounded safe, carrying a bull calf, last week at 70 days post AI. So it worked! Never had one go that long on a heat, so I feel lucky!</p></blockquote><p></p>
[QUOTE="Fire Sweep Ranch, post: 946607, member: 18809"] Those standing 36 hours later, if you gave them a shot of GnrH when you AI'd, should be OK. We had a heifer this year that we AI'd 12 hours after seeing her stand (natural heat), gave her Cystorelin (GnRH), and then observed her standing 12 hours later! I did not have any semen left on the bull we used on her, so I just figured we would see if she stuck. She was ultra-sounded safe, carrying a bull calf, last week at 70 days post AI. So it worked! Never had one go that long on a heat, so I feel lucky! [/QUOTE]
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Best Sync to Tighten Up a Calving Window ???
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