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Cattle Boards
Breeding / Calving Issues
earliest CIDR use
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<blockquote data-quote="Avalon" data-source="post: 547600" data-attributes="member: 7275"><p>I have started CIDR implant at 30 days post partum. All being perfect that puts you at breeding about 40 days post partum. I tried this on a group of 6 cows, three were not in good BCS. They did not respond as well as I had hoped one of those had a heat but very faint. I never saw her active and never saw the spotter mount. Yet the three that were in better BCS all came in heat about 48 hours after pulling the CIDRS and were bred AI. My findings would indicate that the cows must be in good health to jump them up to a sooner breeding date. Naturally it is not very scientific.</p></blockquote><p></p>
[QUOTE="Avalon, post: 547600, member: 7275"] I have started CIDR implant at 30 days post partum. All being perfect that puts you at breeding about 40 days post partum. I tried this on a group of 6 cows, three were not in good BCS. They did not respond as well as I had hoped one of those had a heat but very faint. I never saw her active and never saw the spotter mount. Yet the three that were in better BCS all came in heat about 48 hours after pulling the CIDRS and were bred AI. My findings would indicate that the cows must be in good health to jump them up to a sooner breeding date. Naturally it is not very scientific. [/QUOTE]
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earliest CIDR use
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