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Cattle Boards
Breeding / Calving Issues
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<blockquote data-quote="Ilikesteak" data-source="post: 934083" data-attributes="member: 18648"><p>Approved synch protocols will not "screw up" a cows cycle. Not sure where you are located but your bulls semen fertility can be affected dramatically by summer heat. April and May calvings would be the result of July and August breedings. </p><p>There is a weak link somewhere or you would have at least 50% AI calves from the timed breeding. I feel I have to agree with the pollinator that it sure appears the issue is with the cows . If the AI "program" was at fault most likely you would have a very high percentage of calves born within 3-6 weeks of the timed AI .</p></blockquote><p></p>
[QUOTE="Ilikesteak, post: 934083, member: 18648"] Approved synch protocols will not "screw up" a cows cycle. Not sure where you are located but your bulls semen fertility can be affected dramatically by summer heat. April and May calvings would be the result of July and August breedings. There is a weak link somewhere or you would have at least 50% AI calves from the timed breeding. I feel I have to agree with the pollinator that it sure appears the issue is with the cows . If the AI "program" was at fault most likely you would have a very high percentage of calves born within 3-6 weeks of the timed AI . [/QUOTE]
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