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Cattle Boards
Breeding / Calving Issues
Best Sync to Tighten Up a Calving Window ???
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<blockquote data-quote="JustSimmental" data-source="post: 940520" data-attributes="member: 14624"><p>1. At least 50 days and preferably 55-60 days post-calving -- insert the CIDR****. Day 1 (am)</p><p></p><p>2. Give 2ml of Cystorelin Intramuscularly (IM) to clear any cystic ovaries. Day 1 (am)</p><p> (Ovarian cysts are non-ovulated follicles with incomplete luteinization and can result in irregular estrus)</p><p></p><p>3. Pull CIDR Day 7(am).</p><p></p><p>4. Give 5ml of Lutalyse (IM) to heifers and cows up to 1300 lbs and 6 ml to cows over 1300 lbs.</p><p></p><p>5. Cows and heifers should show heat in the next 80 hours. Normally 24+ hours after the removal of the CIDR.</p><p></p><p>6. If no heat is seen by the 80th hour; breed them anyway.</p><p></p><p>7a. Standing heat in the morning -- breed them in the evening (pm) Later is better; than earlier.</p><p></p><p>7b. Standing heat in the evening -- breed them in the morning (am) later is better; than earlier.</p><p></p><p>For that odd duck cow/heifer that cycles say at 2pm and with the am/pm rule would mean a 2 am breeding (optimally) you can give her a 2 ml shot of cystorelin say at 5pm ( which will shut down estrus) and breed her at 8pm with great success.</p></blockquote><p></p>
[QUOTE="JustSimmental, post: 940520, member: 14624"] 1. At least 50 days and preferably 55-60 days post-calving -- insert the CIDR****. Day 1 (am) 2. Give 2ml of Cystorelin Intramuscularly (IM) to clear any cystic ovaries. Day 1 (am) (Ovarian cysts are non-ovulated follicles with incomplete luteinization and can result in irregular estrus) 3. Pull CIDR Day 7(am). 4. Give 5ml of Lutalyse (IM) to heifers and cows up to 1300 lbs and 6 ml to cows over 1300 lbs. 5. Cows and heifers should show heat in the next 80 hours. Normally 24+ hours after the removal of the CIDR. 6. If no heat is seen by the 80th hour; breed them anyway. 7a. Standing heat in the morning -- breed them in the evening (pm) Later is better; than earlier. 7b. Standing heat in the evening -- breed them in the morning (am) later is better; than earlier. For that odd duck cow/heifer that cycles say at 2pm and with the am/pm rule would mean a 2 am breeding (optimally) you can give her a 2 ml shot of cystorelin say at 5pm ( which will shut down estrus) and breed her at 8pm with great success. [/QUOTE]
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Breeding / Calving Issues
Best Sync to Tighten Up a Calving Window ???
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