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<blockquote data-quote="MO VOL" data-source="post: 927002" data-attributes="member: 18507"><p>I have read many of the previous threads on Sync protocals however some of them were dated a few years back. I am interested in the opinions of those with current experience which of the following two sync protocals would you recommend and why? </p><p></p><p>7 day Select Sync and Cidr - Heat check and Timed AI at 72-84 Hrs</p><p>or</p><p>7 day Co-Sync and Cidr - Fixed Time AI at 60-66 Hrs</p><p></p><p>I attended AI school three years ago and my results the past three years on 20 cow/heifers per year with the Select Sync and Cidr method has only gotten me about 53% on avg. About the same for both heifers and cows. Cows are in 5+ body condition and on good mineral and pasture and have all been 50+ days since calving. I have been disappointed in my results. Especially, given the results I have read about here of 65+%.</p><p></p><p>The research indicates I will do that well with the Fixed Time program, and I am wondering if I should just move to that method to save time/labor. All the research I can find indicates variable results for both but the average success rate on first service AI is not too different. Fixed Time AI would allow more flexibility for me as I have a job and would eliminate the need to check heat. The MO field data from the ISU sync program indicates and avg of 65% which would even be an improvement over my results.</p><p></p><p>In the last couple of years, what has been the experience of those on the board that have used these two methods? What is your success rate % and which method do you use? Cow Pollinator, Dun, Knersie, and other experts, what are your experiences and recomendations to a novice who has only been at this for 3 years?</p><p></p><p>Thanks for any and all feedback.</p></blockquote><p></p>
[QUOTE="MO VOL, post: 927002, member: 18507"] I have read many of the previous threads on Sync protocals however some of them were dated a few years back. I am interested in the opinions of those with current experience which of the following two sync protocals would you recommend and why? 7 day Select Sync and Cidr - Heat check and Timed AI at 72-84 Hrs or 7 day Co-Sync and Cidr - Fixed Time AI at 60-66 Hrs I attended AI school three years ago and my results the past three years on 20 cow/heifers per year with the Select Sync and Cidr method has only gotten me about 53% on avg. About the same for both heifers and cows. Cows are in 5+ body condition and on good mineral and pasture and have all been 50+ days since calving. I have been disappointed in my results. Especially, given the results I have read about here of 65+%. The research indicates I will do that well with the Fixed Time program, and I am wondering if I should just move to that method to save time/labor. All the research I can find indicates variable results for both but the average success rate on first service AI is not too different. Fixed Time AI would allow more flexibility for me as I have a job and would eliminate the need to check heat. The MO field data from the ISU sync program indicates and avg of 65% which would even be an improvement over my results. In the last couple of years, what has been the experience of those on the board that have used these two methods? What is your success rate % and which method do you use? Cow Pollinator, Dun, Knersie, and other experts, what are your experiences and recomendations to a novice who has only been at this for 3 years? Thanks for any and all feedback. [/QUOTE]
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