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Cattle Boards
Breeding / Calving Issues
Success on Time AIing
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<blockquote data-quote="Lucky_P" data-source="post: 1136074" data-attributes="member: 12607"><p>We breed the Fall-calving herd on observed heats, but they're up close to the barn/pens and easy to watch and get in to breed. </p><p>Spring-calvers, we synchronize; mature cows get one AI service and then go to the bull; virgin heifers stay in the paddocks close to the house and we'll re-breed any that don't stick. </p><p></p><p>Have been doing a 7-day CIDR co-synch for several years, but switched to the 5-day protocol last year, and got 20 of 22 pregnant with that first AI service. Will be doing the 5-day again this year - pulling CIDRS tomorrow, but we're trying the double dose of prostaglandin at CIDR removal, rather than running the cows through the lane a second time for another dose at 8-12 hrs.</p></blockquote><p></p>
[QUOTE="Lucky_P, post: 1136074, member: 12607"] We breed the Fall-calving herd on observed heats, but they're up close to the barn/pens and easy to watch and get in to breed. Spring-calvers, we synchronize; mature cows get one AI service and then go to the bull; virgin heifers stay in the paddocks close to the house and we'll re-breed any that don't stick. Have been doing a 7-day CIDR co-synch for several years, but switched to the 5-day protocol last year, and got 20 of 22 pregnant with that first AI service. Will be doing the 5-day again this year - pulling CIDRS tomorrow, but we're trying the double dose of prostaglandin at CIDR removal, rather than running the cows through the lane a second time for another dose at 8-12 hrs. [/QUOTE]
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