Abstract:A reproductive management protocol has been developed to synchronize time of ovulation in lactating dairy cows (Ovsynch). This protocol allows an effective management of reproduction in dairy cows without continuous detection of estrus. We evaluated whether initiation of an Ovsynch protocol at different stages of the estrous cycle altered the conception rate after timed artificial insemination (AI). A further objective of this study was to analyse the time of ovulation within an Ovsynch protocol by ultrasound.… Show more
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