Choosing the estrous synchronization protocol For your AI program

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Beef producers that use artificial insemination in their breeding program use estrus synchronization to better utilize their labor resources both during breeding and calving seasons.  Choosing the synchronization protocol that best fits each individual situation is challenging because so many options are currently available.  The Beef Reproductive Task Force is a committee of animal scientists from eight land grant universities in the United States.  This committee is made up of beef reproduction scientists and extension specialists that have been instrumental in conducting research and evaluating estrus synchronization protocols.  Each year they review the research and make recommendations of estrous synchronization systems that the committee agrees will give producers the best choices for their situations. 

Producers need to decide how much “heat detection” that they feel that they can do successfully.  Some producers can take the time to do “heat detection” for a couple of weeks.  Other producers can find the time to be good at “heat detection” for only a few days, while many other producers would prefer not to “heat detect” at all.  Therefore the Beef Reproductive Task Force has categorized different estrous synchronization protocols accordingly.  Also the committee has made appropriate recommendations for synchronization systems for yearling replacement heifers and for adult cows (currently nursing calves).    

Beef producers can download the 2011 Estrous Synchronization Protocols for Heifers and Cows as well a free estrus synchronization planner by clicking on the Applied Reproductive Strategies in Beef Cattle website brought to you by the Beef Reproduction Task Force.  The URL is http://beefrepro.unl.edu/resources.html .  If you utilize artificial insemination or estrus synchronization with natural service you will find this information quite valuable.  Keep in mind that some of the synchronization products are only available by a prescription from your local food animal veterinarian.



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